A4-80 不锈钢内六角螺钉批发供应商
XZ Fastener supplies A4-80 stainless steel socket screws for wholesale buyers, distributors, equipment maintenance teams, and project contractors that need higher-strength stainless fasteners in repeatable batches. These screws can be supplied as DIN 912 / ISO 4762 socket head cap screws, Allen head screws, or drawing-based socket fasteners according to order requirement. A4-80 is often selected for marine, outdoor, chemical equipment, and machinery applications where A4 corrosion resistance and stronger stainless performance are both important. Buyers can source 不锈钢内六角螺钉 with packing, labels, and inspection details confirmed before shipment.
标准型
DIN 912 / ISO 4762；基于绘图的内六角螺钉
实力
A4-80； A4-70 和 A2-70 可根据要求提供
材质
A4 / 316-系列奥氏体不锈钢
完成
普通、钝化、酸洗钝化、润滑
应用
船舶机械、化工设备、精密组件
买家在采购 A4-80 不锈钢内六角螺钉之前应了解什么
Wholesale sourcing should focus on consistent sizes, repeatable thread quality, stable packing, clear labels, and correct material separation. A4-80 stainless steel socket screws should be specified by standard, head type, internal hex drive, diameter, length, thread pitch, property class, finish, carton quantity, and inspection requirement.
Confirm socket screw geometry
DIN 912 and ISO 4762 are common references for socket head cap screws, while low head, button head, countersunk head, and shoulder socket screws use different dimensions. Buyers can review related 公制内六角螺栓 when building a standard stock list.
Check A4-80 stock and production suitability
A4-80 is a higher stainless property class than A4-70. For larger diameters, special lengths, fine pitch threads, or custom designs, availability and mechanical requirements should be checked before confirming a wholesale program.
Plan packing for receiving and resale
Wholesale buyers often need inner boxes, barcode labels, carton marks, pallet separation, and consistent carton weight. These details help warehouses receive, sort, and resell the screws without unnecessary rework.
常见采购说明
Clear purchasing descriptions reduce confirmation time and help avoid wrong head style or wrong stainless property class. Typical wholesale wording includes:
- A4-80 stainless steel socket screws DIN 912, M6-M12 mixed sizes, plain finish, small box packing.
- ISO 4762 A4-80 stainless socket head cap screws, metric coarse thread, passivated finish.
- 316 stainless steel Allen head screws, A4-80, with barcode labels and pallet packing.
- A4-80 内六角螺钉，配有配套的不锈钢平垫圈和弹簧锁紧垫圈。
- Custom socket screws according to drawing, A4 stainless steel, controlled socket depth and head height.
- Separate carbon steel fastener lines such as DIN 933 full thread hex bolts, Grade 8.8 carbon steel hex bolts, metric hex head bolts, zinc plated DIN 933 bolts, black oxide DIN 933 bolts, and hot dip galvanized DIN 933 bolts when the order includes both socket screws and external hex fasteners.
If stainless socket screws and carbon steel hex bolts are ordered together, list each product family separately with its own standard, size, material, grade, finish, packing unit, and label requirement.
详细规格表
| 项目 | 规格 | 批发采购须知 |
|---|---|---|
| 产品名称 | A4-80 不锈钢内六角螺钉 | 也称为 A4-80 内六角螺钉或内六角螺钉。 |
| 通用标准 | DIN 912、ISO 4762、基于图纸的内六角螺钉 | 说明控制头和驱动器尺寸的准确标准。 |
| 直径范围 | 常见公制尺寸如M3-M24；其他尺寸按订单审核 | Wholesale programs often focus on high-moving sizes such as M4-M16. |
| 长度 | 标准长度或根据图纸定制长度 | 指定全螺纹、部分螺纹或精确螺纹长度。 |
| 线程 | 公制粗牙螺纹；可根据要求提供细间距 | Fine pitch should be clearly marked to avoid mixing with coarse thread stock. |
| 材质 | A4 / 316-系列奥氏体不锈钢 | 最终化学成分遵循所选标准和采购订单。 |
| 属性等级 | ISO 3506参考下的A4-80 | A4-70 may be more economical where A4-80 is not required. |
| 完成 | 普通、钝化、酸洗钝化、抛光、润滑 | Use consistent finish names on labels, invoices, and packing lists. |
| 检查 | 根据要求提供头部尺寸、套筒规、螺纹规、视觉外观、材料文件、机械报告 | 套筒驱动质量对于工具配合和装配控制非常重要。 |
| 批发包装 | Bulk cartons, small boxes, bags, pallet packing, barcode labels, private labels | 纸箱重量和标签内容可根据订单要求安排。 |
材质及牌号说明
A4 不锈钢是一种含钼奥氏体不锈钢，常用于海洋空气、室外潮湿、氯化物暴露、化学设备和其他腐蚀环境。 A4-80 标识了比 A4-70 更高强度的不锈钢属性等级，通常与ISO 3506 参考条件下的最小拉伸强度水平 800 MPa 相关。
For distributors deciding which stainless socket screws to stock, the choice between A2-70, A4-70, and A4-80 should consider end-user applications, corrosion exposure, required clamp load, mating material, tightening method, and galling risk. XZ Fastener explains these differences in its guide to 不锈钢螺栓等级 A2-70、A4-70 和 A4-80.
A4-80 stainless socket screws are not automatic substitutes for alloy steel socket head cap screws. Alloy steel may offer higher strength, while A4-80 is chosen when stainless corrosion resistance is a key requirement.
Inspection can include head dimensions, socket drive quality, thread fit, surface condition, material documents, labels, and packing checks.
表面处理选择指南
A4-80 stainless steel socket screws are commonly supplied in plain stainless or passivated finish. Passivation helps remove free iron contamination and supports the natural stainless protective layer. Pickling and passivation may be discussed for cleaner stainless surfaces. Lubrication can be important for A4-80 socket screws because stainless threads may gall under high tightening pressure.
| 完成 | 典型批发用途 | 买家须知 |
|---|---|---|
| 普通不锈钢 | General machinery, repair stock, standard stainless socket screw programs | 未指定额外表面处理时的常见表面处理。 |
| 钝化 | 船用空气、户外设备、化工机械、洁净不锈钢组件 | Often requested where corrosion resistance and clean surface are important. |
| 酸洗和钝化 | 更苛刻的不锈钢表面清洁要求 | 生产前确认外观期望和验收标准。 |
| 润滑 | 更高的夹紧负载、重复装配、磨损敏感应用 | 使用润滑时扭矩行为会发生变化。 |
| 碳钢涂料 | 镀锌DIN 933 螺栓，黑色氧化DIN 933 螺栓，热镀锌DIN 933 螺栓 | 这些描述通常适用于碳钢六角螺栓，而不是标准 A4 不锈钢内六角螺钉。 |
For broader coating and finish comparisons, review the XZ Fastener 紧固件精加工指南.
制造和质量控制
Wholesale supply begins with order review of the standard, diameter, length, thread pitch, material grade, property class, finish, drive dimensions, packing method, label format, and inspection requirements. Depending on size and order details, A4-80 stainless socket screws can be produced by cold heading, thread rolling, machining, or combined processes.
订单确认
XZ Fastener 检查采购说明、图纸、头部样式、套筒驱动、螺纹长度、材料等级、光洁度和文件要求。买家可以浏览更广泛的范围 紧固件产品 when the program also includes washers, nuts, threaded rods, anchors, or hex bolts.
生产控制
常见的控制点包括头部直径、头部高度、套筒深度、套筒量规配合、螺纹量规配合、表面外观、毛刺控制、分级分离和混合尺寸包装预防。
定制批发方案
For modified heads, special lengths, non-standard thread, shoulder designs, private labels, or mixed fastener kits, XZ Fastener can review 定制紧固件 from drawings, samples, photos, or buyer packing specifications.
应用领域
A4-80 stainless steel socket screws are practical wholesale items for distributors serving maintenance, fabrication, marine, outdoor equipment, and precision machinery markets.
- 船舶设备和沿海机械
- 化学加工设备
- 不锈钢机架和防护罩
- 泵、阀门和仪表组件
- 食品饮料设备支架
- 户外自动化和电气外壳
- 精密机械组件
- 腐蚀环境下的维护更换零件
对于高振动、高负载或安全敏感的接头，应在批量装运前审查配合螺纹、紧固方法、润滑和检查文件。
如何获得更快的报价
A clear wholesale inquiry helps XZ Fastener quote A4-80 stainless steel socket screws accurately. Please provide:
- 尺寸列表，例如M5 x 16、M6 x 20、M8 x 30、M10 x 40。
- 标准或图纸，如DIN 912、ISO 4762、低头、圆头、沉头或定制设计。
- 材质和牌号，例如 A4-80、A4-70、A2-70 或 316 不锈钢。
- 螺纹要求，包括粗牙螺纹、细牙螺纹、全螺纹或精确螺纹长度。
- 表面处理要求，例如普通、钝化、酸洗钝化或润滑。
- Quantity for each size and expected reorder frequency.
- 包装要求，包括散装纸箱、小盒子、袋子、托盘、标签、条形码或私人包装。
- 检验要求，例如材料证书、尺寸报告、套筒规检查或第三方检验。
- Destination, delivery term, carton weight limit, pallet requirement, and shipping marks.
对于结构化查询，请使用 请求报价 页或 联系方式 XZ Fastener 包含绘图、照片或电子表格。
常问问题
Is A4-80 suitable for wholesale socket screw stock?
Yes. A4-80 stainless steel socket screws are useful stock items for buyers serving marine, outdoor, chemical equipment, maintenance, and precision machinery markets. The size range should match local demand and reorder patterns.
What does A4-80 mean?
A4 refers to the 316-family stainless group, and 80 refers to a higher stainless property class under ISO 3506 reference. It is commonly selected when corrosion resistance and stronger stainless performance are both needed.
Are DIN 912 and ISO 4762 socket screws the same?
它们与内六角螺钉标准密切相关，但买家应说明所需的确切标准，因为尺寸细节、文件措辞和验收期望可能有所不同。
A4-80内六角螺钉可以代替合金钢内六角螺钉吗？
不是自动的。合金钢内六角螺钉可提供更高的强度，而A4-80不锈钢内六角螺钉可提供耐腐蚀性。更换前应检查负载、环境和装配方法。
Can small box or private label packing be supplied?
Yes. Small boxes, bulk cartons, bags, pallet packing, barcode labels, shipping marks, and private label packing can be discussed according to order requirement.
Can matching washers and nuts be packed together?
Yes. Stainless flat washers, spring washers, hex nuts, and assembled packing can be supplied according to the screw standard, thread, material, and packing requirement.
买家如何降低组装过程中的磨损风险？
买家可以考虑润滑、防卡剂、受控的拧紧速度、清洁的配合螺纹以及正确的配合材料。当预计有高夹紧负载或重复组装时，应检查这一点。
Send Your Wholesale A4-80 Stainless Socket Screw Inquiry
Send your size list, finish, quantity, packaging method, and inspection requirements. Include the standard or drawing number, head type, thread pitch, thread length, carton label needs, pallet requirements, destination, and whether washers or nuts are needed. XZ Fastener will review the details and prepare a quotation according to your order requirement.
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