zinc plated hex bolts manufacturer
XZ Fastener manufactures zinc plated hex bolts for machinery, brackets, electrical frames, equipment repair, light construction, furniture hardware, and distributor stock programs. Bolts can be supplied according to DIN 931, DIN 933, ISO 4014, ISO 4017, ANSI/ASME B18.2.1, or customer drawings, with full thread and partial thread options available. Carbon steel, mild steel, and high tensile grades can be arranged according to order requirement, with white zinc, yellow zinc, coating thickness, packaging, and inspection details confirmed before production.
Metric and inch zinc plated hex bolts can be supplied with matching nuts, flat washers, and spring washers.
Quick Specs
What Buyers Should Know Before Sourcing Zinc Plated Hex Bolts
Confirm Zinc Plating Type and Thickness
Zinc plated hex bolts are often used for indoor and mild corrosion environments, but buyers should confirm white zinc, yellow zinc, passivation type, and coating thickness before ordering. For finish comparison, XZ Fastener’s black oxide vs zinc plated fasteners guide helps clarify where zinc plating fits.
Check Standard, Grade, and Thread Length
DIN 933 and ISO 4017 are commonly used for full thread metric hex head bolts, while DIN 931 and ISO 4014 are often used for partial thread bolts. Strength grade, nut grade, washer type, and thread pitch should be listed clearly to avoid mismatched assembly parts.
Common Purchasing Descriptions
Zinc plated hex bolt inquiries should include standard, size, grade, thread type, coating color, quantity, and packing method. Buyers often use the following descriptions in RFQs and purchase orders.
- DIN 933 full thread hex bolts, carbon steel, zinc plated, Grade 4.8 or Grade 8.8
- Grade 8.8 carbon steel hex bolts with white zinc plated finish
- metric hex head bolts zinc plated, packed with matching hex nuts and flat washers
- zinc plated DIN 933 bolts for machinery, brackets, cabinets, and distributor stock
- DIN 931 partial thread hex bolts, zinc plated, coarse thread or fine thread
- black oxide DIN 933 bolts and hot dip galvanized DIN 933 bolts as alternative finish options for different environments
For high tensile zinc plated options, buyers can review zinc plated high tensile hex head bolts.
Detailed Specifications Table
| Item | Common Options | Purchasing Notes |
|---|---|---|
| Product Name | Zinc plated hex bolts | Also called zinc plated hex head bolts or zinc plated hex cap screws depending on market |
| Standards | DIN 931, DIN 933, ISO 4014, ISO 4017, ANSI/ASME B18.2.1 | Confirm the standard because head dimensions, thread length, and tolerance may differ |
| Size Range | M3 to M64, inch sizes available upon request | Diameter, length, pitch, and thread length should be listed clearly |
| Thread Type | Metric coarse, metric fine, UNC, UNF, full thread, partial thread | Thread pitch should match nuts, tapped holes, or existing inventory |
| Material | Low carbon steel, medium carbon steel, C45, 40Cr, alloy steel upon request | Material should match strength grade, forming method, and cost requirement |
| Strength Class | 4.8, 5.8, 8.8, 10.9, or drawing-specified class | For high-strength grades, plating process and post-treatment should be discussed before production |
| Zinc Finish | White zinc, blue white zinc, yellow zinc, clear passivation, trivalent passivation | Color and passivation type should be stated in the inquiry or drawing |
| Coating Thickness | Common commercial thickness or specified microns upon request | Thicker coating may affect thread fit and should be confirmed with matching nuts |
| Inspection | Dimension, thread, coating thickness, visual surface, hardness, salt spray if specified | Inspection reports are available upon request when confirmed before order placement |
| Packaging | Bulk cartons, small boxes, bags, pallets, private labels, mixed kits | Packaging can be arranged according to order requirement and warehouse handling needs |
Material and Grade Explanation
Zinc plated hex bolts are usually made from carbon steel because the material offers practical strength, broad size availability, and efficient plating compatibility. Grade 4.8 and 5.8 are common for general hardware and light-duty fastening, while Grade 8.8 and 10.9 can be used when higher mechanical performance is required.
For higher strength classes, buyers should confirm whether zinc plating is suitable for the assembly and whether post-plating treatment, hydrogen embrittlement control, or alternative coatings are needed. The guide to fastener coating options can help compare zinc, HDG, zinc flake, and other finishes.
Surface Finish Selection Guide
White Zinc
Common for indoor machinery, cabinets, hardware, brackets, and distributor stock where a bright silver appearance is required.
Blue White Zinc
Selected when buyers require a cleaner blue-white appearance for general hardware or visible fastener packages.
Yellow Zinc
Used for visual separation, hardware stock, and applications where yellow passivation is requested by drawing or purchase order.
Trivalent Passivation
Available upon request when buyers require specific passivation systems or compliance with project surface treatment rules.
Hot Dip Galvanized Alternative
Used for outdoor projects that require thicker zinc coating, though thread allowance and nut matching should be confirmed.
Zinc Flake Alternative
Can be discussed for higher corrosion resistance or selected high-strength bolts where a non-electrolytic coating is preferred.
For outdoor projects, compare hot dip galvanized vs zinc plated fasteners before confirming the coating requirement.
Manufacturing and Quality Control
Production control for zinc plated hex bolts may include raw material inspection, cutting, cold heading or hot forging, thread rolling, heat treatment where required, surface preparation, zinc plating, passivation, sorting, inspection, and packing. Key inspection points include dimensions, thread fit, coating coverage, coating thickness, visual surface, hardness, and package label accuracy.
For inspection planning, XZ Fastener’s guide to fastener quality control during manufacturing and go/no-go thread gauge testing can help buyers define acceptance checks.
Applications
- Machinery covers, brackets, guards, cabinets, and support frames
- Electrical enclosures, appliance parts, furniture hardware, and repair kits
- Distributor stock programs for common metric hex head bolts
- OEM assemblies requiring bright zinc finish and stable packaging
- Bolt, nut, and washer kits for light construction and maintenance
- Indoor assemblies where moderate corrosion resistance is sufficient
- Hardware packs requiring barcode labels or private label packaging
- Replacement projects where DIN, ISO, or ANSI dimensions must match
For thread and pitch checks before ordering, buyers can review the fastener thread types and pitch guide.
How to Get a Faster Quotation
To help XZ Fastener prepare an accurate quotation, please send the standard or drawing, size list, diameter, length, thread pitch, full thread or partial thread requirement, grade, zinc color, coating thickness if specified, quantity, packaging method, and inspection requirements. If bolts need matching nuts and washers, include those details in the same inquiry.
For a structured inquiry, use the request a quote page with drawings, photos, samples, or current supplier part numbers.
FAQ
What is the common finish for zinc plated hex bolts?
White zinc and yellow zinc are common options. Buyers should specify the required zinc color, passivation type, and coating thickness if the project has a defined surface requirement.
Can zinc plated hex bolts be supplied in Grade 8.8?
Yes. Grade 8.8 carbon steel hex bolts can be supplied with zinc plated finish when the standard, size, plating requirement, and inspection details are confirmed before production.
Are zinc plated bolts suitable for outdoor use?
Zinc plated bolts are usually better for indoor or mild corrosion environments. For outdoor exposure, hot dip galvanized, zinc flake, or another specified coating may be more suitable.
Can XZ Fastener supply zinc plated bolts with nuts and washers?
Yes. Zinc plated hex bolts can be supplied with matching hex nuts, flat washers, spring washers, and custom kit packaging according to order requirement.
What inspection items should be requested for zinc plated hex bolts?
Common inspection items include dimensions, thread fit, head dimensions, coating thickness, surface appearance, hardness where required, and packaging label accuracy.
What information should be included in a zinc plated bolt RFQ?
Please include standard, size list, grade, thread type, zinc color, coating thickness if required, quantity, packaging method, and inspection requirements. Drawings or samples are helpful for non-standard items.
Send Your Zinc Plated Hex Bolt Inquiry
For a faster quotation, please send your size list, finish, quantity, packaging method, and inspection requirements. Drawings, bolt grade, thread pitch, zinc color, coating thickness, matching nut or washer details, and label format help confirm the correct zinc plated hex bolts before production.
Request a Quote from XZ Fastener
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