{"id":8374,"date":"2025-06-12T22:30:03","date_gmt":"2025-06-12T14:30:03","guid":{"rendered":"https:\/\/xzfastener.com\/?p=8374"},"modified":"2026-06-25T22:33:46","modified_gmt":"2026-06-25T14:33:46","slug":"black-zinc-plated-fasteners-supplier-china","status":"publish","type":"post","link":"https:\/\/xzfastener.com\/vi\/black-zinc-plated-fasteners-supplier-china\/","title":{"rendered":"black zinc plated fasteners supplier China"},"content":{"rendered":"\n<style>\n  .xz-wp-product-page {\n    --xz-blue: #0b2d4d;\n    --xz-blue-2: #123f68;\n    --xz-blue-3: #1c5b89;\n    --xz-soft: #eef5fb;\n    --xz-soft-2: #f7fafd;\n    --xz-line: #d8e5ef;\n    --xz-text: #1f2d3a;\n    --xz-muted: #52687a;\n    --xz-white: #ffffff;\n    font-family: Arial, Helvetica, sans-serif;\n    color: var(--xz-text);\n    line-height: 1.65;\n    background: var(--xz-white);\n  }\n\n  .xz-wp-product-page * {\n    box-sizing: border-box;\n  }\n\n  .xz-wp-product-page a {\n    color: var(--xz-blue-3);\n    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#ffffff;\n    padding: 38px 0;\n  }\n\n  .xz-wp-product-page .xz-cta h2,\n  .xz-wp-product-page .xz-cta p {\n    color: #ffffff;\n  }\n\n  .xz-wp-product-page .xz-cta a {\n    color: #ffffff;\n    text-decoration: underline;\n  }\n\n  @media (max-width: 900px) {\n    .xz-wp-product-page .xz-hero-grid,\n    .xz-wp-product-page .xz-two-col {\n      grid-template-columns: 1fr;\n    }\n\n    .xz-wp-product-page .xz-specs {\n      grid-template-columns: repeat(2, 1fr);\n    }\n\n    .xz-wp-product-page h1 {\n      font-size: 31px;\n    }\n  }\n\n  @media (max-width: 560px) {\n    .xz-wp-product-page .xz-container {\n      padding: 0 16px;\n    }\n\n    .xz-wp-product-page .xz-hero {\n      padding: 40px 0;\n    }\n\n    .xz-wp-product-page .xz-specs {\n      grid-template-columns: 1fr;\n    }\n\n    .xz-wp-product-page h1 {\n      font-size: 27px;\n    }\n\n    .xz-wp-product-page h2 {\n      font-size: 23px;\n    }\n  }\n<\/style>\n\n<article class=\"xz-wp-product-page\">\n  <section class=\"xz-hero\">\n    <div class=\"xz-container xz-hero-grid\">\n      <div>\n        <p class=\"xz-kicker\">China Supplier for Industrial Black Finish Hardware<\/p>\n        <h1>black zinc plated fasteners supplier China<\/h1>\n        <p>XZ Fastener supplies black zinc plated fasteners from China for importers, distributors, OEM assembly plants, and project buyers who need a dark decorative finish with zinc-based corrosion protection. Products can include screws, bolts, nuts, washers, studs, anchors, and made-to-drawing components according to order requirement. Black zinc is often used for visible hardware, electrical enclosures, machinery covers, automotive accessories, furniture fittings, and repair kits. Buyers can review related <a href=\"https:\/\/xzfastener.com\/home\/products\/\">fastener products<\/a> and send drawings, size lists, finish targets, quantities, packaging details, and inspection requirements for a clear quotation.<\/p>\n        <div class=\"xz-hero-actions\">\n          <a class=\"xz-btn xz-btn-primary\" href=\"#xz-quote\">Request a Quote<\/a>\n          <a class=\"xz-btn xz-btn-secondary\" href=\"#xz-specs\">View Specifications<\/a>\n        <\/div>\n      <\/div>\n      <div class=\"xz-image-card\">\n        <img decoding=\"async\" src=\"https:\/\/xzfastener.com\/wp-content\/uploads\/2026\/06\/Hf3cb203518a3421c82b3303f4e8aa79cG.png\" alt=\"Black zinc plated fasteners supplier China\">\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <section id=\"xz-specs\" class=\"xz-band\">\n    <div class=\"xz-container\">\n      <h2>Quick Specs<\/h2>\n      <div class=\"xz-specs\">\n        <div class=\"xz-spec\">\n          <strong>Standard<\/strong>\n          <span>DIN, ISO, ANSI, ASME, JIS, GB, ASTM, or made-to-drawing fasteners can be supplied according to order requirement.<\/span>\n        <\/div>\n        <div class=\"xz-spec\">\n          <strong>Strength<\/strong>\n          <span>Common options include class 4.8, 8.8, 10.9, 12.9, nut classes, washer hardness, and screw hardness as specified.<\/span>\n        <\/div>\n        <div class=\"xz-spec\">\n          <strong>Material<\/strong>\n          <span>Carbon steel, alloy steel, stainless steel, brass, and other materials can be reviewed by application and drawing.<\/span>\n        <\/div>\n        <div class=\"xz-spec\">\n          <strong>Finish<\/strong>\n          <span>Black zinc plated finish with black passivation; sealing, coating thickness, and salt spray target available upon request.<\/span>\n        <\/div>\n        <div class=\"xz-spec\">\n          <strong>Application<\/strong>\n          <span>Machinery, electrical cabinets, hardware kits, automotive accessories, furniture fittings, equipment covers, and visible assemblies.<\/span>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <section>\n    <div class=\"xz-container\">\n      <h2>What Buyers Should Know Before Sourcing Black Zinc Plated Fasteners<\/h2>\n      <div class=\"xz-two-col\">\n        <div>\n          <p>Black zinc plating is used when buyers need a dark surface with zinc-based protection, but it should not be treated as the same finish as black oxide, black phosphate, or paint. The final performance depends on base material, coating thickness, passivation, sealing treatment, thread fit, packing moisture control, and the working environment.<\/p>\n          <p>For China sourcing, the RFQ should separate each item by standard, size, material, strength grade, finish, quantity, and packing method. If the item is non-standard, XZ Fastener can review <a href=\"https:\/\/xzfastener.com\/home\/customized-service\/\">custom fasteners<\/a> based on drawings, samples, or assembly conditions before confirming production feasibility.<\/p>\n        <\/div>\n        <div class=\"xz-panel\">\n          <h3>Procurement Checks<\/h3>\n          <ul>\n            <li>Confirm whether the part is a bolt, screw, nut, washer, stud, anchor, pin, clamp, or custom component.<\/li>\n            <li>List the exact standard or drawing revision, including thread type and tolerance requirement.<\/li>\n            <li>Define black zinc plating thickness, passivation shade, sealing treatment, and salt spray target.<\/li>\n            <li>State material and strength grade clearly, especially for heat-treated or high-strength parts.<\/li>\n            <li>Confirm packing, carton weight, pallet method, label format, and inspection documents before production.<\/li>\n          <\/ul>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <section class=\"xz-band\">\n    <div class=\"xz-container\">\n      <h2>Common Purchasing Descriptions<\/h2>\n      <p>Purchasing teams may describe these items as black zinc plated bolts, black zinc screws, black zinc nuts, black zinc washers, black passivated fasteners, black electroplated fasteners, dark zinc plated hardware, or black zinc coated assembly parts. If the same purchase list includes <a href=\"https:\/\/xzfastener.com\/din-933-full-thread-hex-bolts-manufacturer\/\">DIN 933 full thread hex bolts<\/a>, metric hex head bolts, socket screws, nuts, and washers, each line should include standard, size, grade, finish, and quantity.<\/p>\n      <p>Finish descriptions must be precise. Black zinc plated parts are not identical to <a href=\"https:\/\/xzfastener.com\/din-933-black-oxide-hex-bolts-supplier\/\">black oxide DIN 933 bolts<\/a>. If the project compares black zinc with zinc plated DIN 933 bolts or hot dip galvanized DIN 933 bolts, the buyer should define corrosion requirement, appearance expectation, and thread fit conditions for each finish.<\/p>\n    <\/div>\n  <\/section>\n\n  <section>\n    <div class=\"xz-container\">\n      <h2>Detailed Specifications Table<\/h2>\n      <div class=\"xz-table-wrap\">\n        <table>\n          <thead>\n            <tr>\n              <th>Specification Item<\/th>\n              <th>Common Options<\/th>\n              <th>Buyer Notes<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td>Product Range<\/td>\n              <td>Hex bolts, flange bolts, socket screws, machine screws, self tapping screws, nuts, washers, studs, anchors, custom parts<\/td>\n              <td>Mixed fastener lists can be quoted when each item is separated by size, material, finish, and quantity.<\/td>\n            <\/tr>\n            <tr>\n              <td>Standards<\/td>\n              <td>DIN, ISO, ANSI, ASME, ASTM, JIS, GB, or made-to-drawing<\/td>\n              <td>Provide the exact standard number or drawing revision to avoid dimensional mismatch.<\/td>\n            <\/tr>\n            <tr>\n              <td>Thread Type<\/td>\n              <td>Metric coarse, metric fine, UNC, UNF, self tapping, self drilling, custom thread<\/td>\n              <td>Thread fit should be checked after coating, especially for small parts and fine threads.<\/td>\n            <\/tr>\n            <tr>\n              <td>Material<\/td>\n              <td>Low carbon steel, medium carbon steel, alloy steel, stainless steel, brass, or material upon request<\/td>\n              <td>Material affects forming method, heat treatment, plating behavior, strength, and cost.<\/td>\n            <\/tr>\n            <tr>\n              <td>Strength<\/td>\n              <td>Class 4.8, 8.8, 10.9, 12.9, nut class 8\/10\/12, washer hardness, screw hardness<\/td>\n              <td>High-strength electroplated parts may need additional risk review and post-plating baking.<\/td>\n            <\/tr>\n            <tr>\n              <td>Finish<\/td>\n              <td>Black zinc plated, white zinc, yellow zinc, blue zinc, black oxide, phosphate, hot dip galvanized, zinc flake<\/td>\n              <td>Finish choice should match appearance, corrosion exposure, thread fit, and assembly conditions.<\/td>\n            <\/tr>\n            <tr>\n              <td>Inspection<\/td>\n              <td>Dimension, thread gauge, hardness, coating thickness, appearance, packing count, salt spray test if required<\/td>\n              <td>Inspection requirements should be confirmed before production and listed in the purchase order.<\/td>\n            <\/tr>\n            <tr>\n              <td>Packing<\/td>\n              <td>Bulk carton, small box, polybag, kit packing, export carton, pallet, customer label<\/td>\n              <td>Specify carton weight limit, barcode, label language, moisture protection, and shipping mark.<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p class=\"xz-note\">For coating comparison across bolt orders, buyers can review <a href=\"https:\/\/xzfastener.com\/din-933-zinc-plated-hex-bolts-manufacturer\/\">zinc plated DIN 933 bolts<\/a> as a separate reference when appearance, corrosion resistance, and cost must be balanced.<\/p>\n    <\/div>\n  <\/section>\n\n  <section class=\"xz-band\">\n    <div class=\"xz-container\">\n      <h2>Material and Grade Explanation<\/h2>\n      <div class=\"xz-two-col\">\n        <div class=\"xz-panel\">\n          <h3>Carbon Steel and Alloy Steel<\/h3>\n          <p>Carbon steel is widely used for commercial screws, nuts, washers, and general-purpose bolts. Medium carbon steel and alloy steel are selected when higher tensile strength, heat treatment, or fatigue resistance is required. <a href=\"https:\/\/xzfastener.com\/din-933-grade-8-8-hex-bolts-manufacturer\/\">Grade 8.8 carbon steel hex bolts<\/a> should be specified with standard, thread length, finish, and inspection requirement.<\/p>\n        <\/div>\n        <div class=\"xz-panel\">\n          <h3>Stainless Steel and Special Materials<\/h3>\n          <p>Stainless steel, brass, and special materials can be reviewed when corrosion behavior, conductivity, magnetism, or appearance is important. If black surface treatment is requested on non-carbon-steel materials, the buyer should confirm the acceptable process, color expectation, and performance target before sampling.<\/p>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <section>\n    <div class=\"xz-container\">\n      <h2>Surface Finish Selection Guide<\/h2>\n      <p>Black zinc plated fasteners are chosen when a dark commercial finish is required with zinc-based corrosion protection. The final shade may vary by base material, part geometry, coating thickness, passivation chemistry, and sealing treatment. For visible parts, buyers should approve a sample before bulk production.<\/p>\n      <div class=\"xz-table-wrap\">\n        <table>\n          <thead>\n            <tr>\n              <th>Finish<\/th>\n              <th>Typical Use<\/th>\n              <th>Purchasing Consideration<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td>Black Zinc Plated<\/td>\n              <td>Visible hardware, electrical cabinets, furniture fittings, automotive accessories, machinery covers<\/td>\n              <td>Define color sample, coating thickness, passivation, sealing, and salt spray target before order confirmation.<\/td>\n            <\/tr>\n            <tr>\n              <td>Black Oxide<\/td>\n              <td>Machinery parts, tool-related hardware, indoor fasteners where a dark surface is needed<\/td>\n              <td>Different from black zinc; corrosion resistance depends heavily on oiling and service environment.<\/td>\n            <\/tr>\n            <tr>\n              <td>Blue or White Zinc<\/td>\n              <td>General hardware, appliances, electrical parts, indoor assemblies<\/td>\n              <td>Common bright finish when black appearance is not required.<\/td>\n            <\/tr>\n            <tr>\n              <td>Yellow Zinc<\/td>\n              <td>Repair kits, industrial hardware, and parts requiring yellow chromate appearance<\/td>\n              <td>Confirm accepted passivation chemistry and destination market requirements before ordering.<\/td>\n            <\/tr>\n            <tr>\n              <td>Hot Dip Galvanized<\/td>\n              <td>Outdoor construction, structural bolting, guardrails, and heavier corrosion exposure<\/td>\n              <td><a href=\"https:\/\/xzfastener.com\/din-933-hot-dip-galvanized-hex-bolts-manufacturer\/\">hot dip galvanized DIN 933 bolts<\/a> should be quoted separately because coating thickness and thread fit differ from electroplated parts.<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p class=\"xz-note\">When finish performance is critical, include coating thickness, salt spray target, thread gauge requirement, and packing moisture control in the RFQ.<\/p>\n    <\/div>\n  <\/section>\n\n  <section class=\"xz-band\">\n    <div class=\"xz-container\">\n      <h2>Manufacturing and Quality Control<\/h2>\n      <div class=\"xz-two-col\">\n        <div>\n          <p>Manufacturing routes depend on the product type. Bolts and screws may be cold headed and thread rolled; nuts may be formed and tapped; washers may be stamped; custom parts may require machining or secondary operations. After forming and heat treatment, black zinc plating is applied according to the finish requirement, followed by inspection, sorting, and packing.<\/p>\n          <p>Common checks include dimensional measurement, thread gauge testing, hardness testing when required, coating appearance, coating thickness, and packing count. XZ Fastener&#8217;s <a href=\"https:\/\/xzfastener.com\/fastener-quality-control-during-manufacturing-from-raw-material-to-packing\/\">fastener quality control<\/a> guidance explains typical inspection points from raw material to packing for industrial fastener orders.<\/p>\n        <\/div>\n        <div class=\"xz-panel\">\n          <h3>Quality Points for Black Zinc Orders<\/h3>\n          <ul>\n            <li>Thread fit after plating, especially for nuts, small screws, and fine-thread components.<\/li>\n            <li>Color consistency across bolts, nuts, washers, and screws in the same kit.<\/li>\n            <li>Surface coverage inside recesses, under heads, and around threaded sections.<\/li>\n            <li>Control of peeling, stains, white rust, heavy marks, rough plating, and mixed finish parts.<\/li>\n            <li>Carton label, quantity count, pallet strength, and moisture protection for export shipment.<\/li>\n          <\/ul>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <section>\n    <div class=\"xz-container\">\n      <h2>Applications<\/h2>\n      <div class=\"xz-two-col\">\n        <div class=\"xz-panel\">\n          <h3>OEM and Assembly Use<\/h3>\n          <ul>\n            <li>Machinery covers, sheet metal housings, equipment frames, and control cabinets.<\/li>\n            <li>Automotive accessories, motorcycle parts, brackets, clamps, and repair hardware.<\/li>\n            <li>Furniture fittings, display racks, lighting products, appliance parts, and consumer equipment.<\/li>\n            <li>Hardware kits requiring consistent black appearance across screws, bolts, nuts, and washers.<\/li>\n          <\/ul>\n        <\/div>\n        <div class=\"xz-panel\">\n          <h3>Importer and Distributor Supply<\/h3>\n          <ul>\n            <li>Bulk packed black zinc fasteners for wholesalers, importers, and repacking operations.<\/li>\n            <li>Mixed-size shipments with unified carton labels, barcodes, and pallet packing.<\/li>\n            <li>Project lists requiring metric hex head bolts, screws, washers, nuts, anchors, and custom parts.<\/li>\n            <li>Repeat orders where finish consistency, packing stability, and shipment documents are important.<\/li>\n          <\/ul>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <section class=\"xz-band\">\n    <div class=\"xz-container\">\n      <h2>How to Get a Faster Quotation<\/h2>\n      <p>To quote black zinc plated fasteners accurately, XZ Fastener needs a clear size list with product name, standard, material, grade, finish, quantity, packaging, and inspection requirements. If drawings are available, include the drawing revision, tolerance, surface finish note, and assembly requirement. If samples are available, photos and measurements can help confirm the correct production method.<\/p>\n      <ul>\n        <li>Send a size list with diameter, length, thread, standard, head style, and quantity per item.<\/li>\n        <li>Confirm material and grade, such as carbon steel, alloy steel, stainless steel, class 8.8, 10.9, or 12.9.<\/li>\n        <li>State black zinc plating requirement, including coating thickness, passivation, sealing, color sample, and salt spray target.<\/li>\n        <li>Define packaging: bulk carton, small box, polybag, kit packing, pallet, label, barcode, and shipping mark.<\/li>\n        <li>List inspection requirements, such as dimensional report, thread gauge, hardness, coating thickness, packing photos, or shipment documents.<\/li>\n      <\/ul>\n    <\/div>\n  <\/section>\n\n  <section>\n    <div class=\"xz-container\">\n      <h2>FAQ<\/h2>\n      <details>\n        <summary>Is black zinc plating suitable for outdoor fasteners?<\/summary>\n        <p>Black zinc plating can provide moderate corrosion protection, but outdoor suitability depends on coating thickness, sealing treatment, salt spray target, and exposure conditions. For severe outdoor use, alternative coatings may be more suitable.<\/p>\n      <\/details>\n      <details>\n        <summary>Can XZ Fastener supply black zinc plated fasteners from China in mixed sizes?<\/summary>\n        <p>Yes. Mixed sizes and mixed product types can be quoted when the buyer provides a clear size list, standard, material, grade, finish, quantity, and packing method for each item.<\/p>\n      <\/details>\n      <details>\n        <summary>What is the difference between black zinc and black oxide?<\/summary>\n        <p>Black zinc uses zinc plating with black passivation, while black oxide is a different surface conversion process. They differ in appearance, corrosion behavior, process cost, and suitable applications.<\/p>\n      <\/details>\n      <details>\n        <summary>Can you match an approved black finish sample?<\/summary>\n        <p>An approved sample or reference photo can be reviewed before production. For visible assemblies, physical sample approval is recommended because black zinc color may vary with material, geometry, and process conditions.<\/p>\n      <\/details>\n      <details>\n        <summary>Are black zinc plated high-strength fasteners available?<\/summary>\n        <p>High-strength fasteners can be discussed according to grade, hardness, application, and coating requirement. Electroplated high-strength parts may need hydrogen embrittlement risk review and post-plating baking.<\/p>\n      <\/details>\n      <details>\n        <summary>What documents can be supplied with black zinc plated fastener shipments?<\/summary>\n        <p>Documents can be supplied according to order requirement, such as commercial invoice, packing list, inspection report, material report, coating thickness report, packing photos, and shipment documents.<\/p>\n      <\/details>\n    <\/div>\n  <\/section>\n\n  <section id=\"xz-quote\" class=\"xz-cta\">\n    <div class=\"xz-container\">\n      <h2>Send Your Black Zinc Fastener RFQ<\/h2>\n      <p>For a faster quotation, please <a href=\"https:\/\/xzfastener.com\/home\/contact-us\/\">contact XZ Fastener<\/a> with your size list, finish, quantity, packaging, and inspection requirements. Drawings, samples, approved color references, destination port, and delivery terms will help confirm production feasibility and prepare a clearer offer.<\/p>\n    <\/div>\n  <\/section>\n\n  <script type=\"application\/ld+json\">\n  {\n    \"@context\": \"https:\/\/schema.org\",\n    \"@graph\": [\n      {\n        \"@type\": \"Organization\",\n        \"@id\": \"https:\/\/xzfastener.com\/#organization\",\n        \"name\": \"XZ Fastener\",\n        \"url\": \"https:\/\/xzfastener.com\/\",\n        \"logo\": \"https:\/\/xzfastener.com\/wp-content\/uploads\/2024\/07\/cropped-XZ.png\",\n        \"description\": \"XZ Fastener supplies industrial fasteners including screws, bolts, nuts, washers, studs, anchors, and custom fastening parts according to order requirements.\"\n      },\n      {\n        \"@type\": \"BreadcrumbList\",\n        \"@id\": \"https:\/\/xzfastener.com\/black-zinc-plated-fasteners-supplier-china\/#breadcrumb\",\n        \"itemListElement\": [\n          {\n            \"@type\": \"ListItem\",\n            \"position\": 1,\n            \"name\": \"Home\",\n            \"item\": \"https:\/\/xzfastener.com\/\"\n          },\n          {\n            \"@type\": \"ListItem\",\n            \"position\": 2,\n            \"name\": \"Fastener Products\",\n            \"item\": \"https:\/\/xzfastener.com\/home\/products\/\"\n          },\n          {\n            \"@type\": \"ListItem\",\n            \"position\": 3,\n            \"name\": \"Black Zinc Plated Fasteners Supplier China\",\n            \"item\": \"https:\/\/xzfastener.com\/black-zinc-plated-fasteners-supplier-china\/\"\n          }\n        ]\n      },\n      {\n        \"@type\": \"Product\",\n        \"@id\": \"https:\/\/xzfastener.com\/black-zinc-plated-fasteners-supplier-china\/#product\",\n        \"name\": \"black zinc plated fasteners supplier China\",\n        \"image\": \"https:\/\/xzfastener.com\/wp-content\/uploads\/2026\/06\/Hf3cb203518a3421c82b3303f4e8aa79cG.png\",\n        \"description\": \"Black zinc plated fasteners supplied from China for importers, distributors, OEM assembly plants, and project buyers requiring a dark decorative finish, zinc-based corrosion protection, practical packaging, and order-based inspection requirements.\",\n        \"brand\": {\n          \"@type\": \"Brand\",\n          \"name\": \"XZ Fastener\"\n        },\n        \"manufacturer\": {\n          \"@id\": \"https:\/\/xzfastener.com\/#organization\"\n        },\n        \"material\": \"Carbon steel, alloy steel, stainless steel, brass, or other materials upon request\",\n        \"category\": \"Black Zinc Plated Fasteners\"\n      },\n      {\n        \"@type\": \"FAQPage\",\n        \"@id\": \"https:\/\/xzfastener.com\/black-zinc-plated-fasteners-supplier-china\/#faq\",\n        \"mainEntity\": [\n          {\n            \"@type\": \"Question\",\n            \"name\": \"Is black zinc plating suitable for outdoor fasteners?\",\n            \"acceptedAnswer\": {\n              \"@type\": \"Answer\",\n              \"text\": \"Black zinc plating can provide moderate corrosion protection, but outdoor suitability depends on coating thickness, sealing treatment, salt spray target, and exposure conditions. For severe outdoor use, alternative coatings may be more suitable.\"\n            }\n          },\n          {\n            \"@type\": \"Question\",\n            \"name\": \"Can XZ Fastener supply black zinc plated fasteners from China in mixed sizes?\",\n            \"acceptedAnswer\": {\n              \"@type\": \"Answer\",\n              \"text\": \"Yes. Mixed sizes and mixed product types can be quoted when the buyer provides a clear size list, standard, material, grade, finish, quantity, and packing method for each item.\"\n            }\n          },\n          {\n            \"@type\": \"Question\",\n            \"name\": \"What is the difference between black zinc and black oxide?\",\n            \"acceptedAnswer\": {\n              \"@type\": \"Answer\",\n              \"text\": \"Black zinc uses zinc plating with black passivation, while black oxide is a different surface conversion process. They differ in appearance, corrosion behavior, process cost, and suitable applications.\"\n            }\n          },\n          {\n            \"@type\": \"Question\",\n            \"name\": \"Can you match an approved black finish sample?\",\n            \"acceptedAnswer\": {\n              \"@type\": \"Answer\",\n              \"text\": \"An approved sample or reference photo can be reviewed before production. For visible assemblies, physical sample approval is recommended because black zinc color may vary with material, geometry, and process conditions.\"\n            }\n          },\n          {\n            \"@type\": \"Question\",\n            \"name\": \"Are black zinc plated high-strength fasteners available?\",\n            \"acceptedAnswer\": {\n              \"@type\": \"Answer\",\n              \"text\": \"High-strength fasteners can be discussed according to grade, hardness, application, and coating requirement. 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Products can include screws, bolts, nuts, washers, studs, anchors, and made-to-drawing components according to [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[110],"tags":[],"class_list":["post-8374","post","type-post","status-publish","format-standard","hentry","category-product-knowledge"],"acf":[],"_links":{"self":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/8374","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/comments?post=8374"}],"version-history":[{"count":1,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/8374\/revisions"}],"predecessor-version":[{"id":8375,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/8374\/revisions\/8375"}],"wp:attachment":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/media?parent=8374"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/categories?post=8374"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/tags?post=8374"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}