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العربية DIN 912 socket head cap screws wholesale supplier
XZ Fastener supplies DIN 912 socket head cap screws for distributors, project buyers, and OEM purchasing teams that need repeatable dimensions, stable head socket engagement, and practical packaging for warehouse handling. These screws can be supplied in alloy steel, carbon steel, stainless steel 304 and 316, with metric sizes for machinery, fixtures, molds, equipment repair, and assembly lines. For wholesale orders, buyers can request mixed size lists, carton labeling, small-box packing, pallet plans, and inspection documents according to order requirement. Matching nuts, washers, and related fastener products can also be quoted for consolidated purchasing.
Wholesale supply can be arranged by size series, finish, grade, carton weight, pallet layout, and inspection requirement.
Quick Specs
What Buyers Should Know Before Sourcing DIN 912 Socket Head Cap Screws
Confirm the Standard and Head Fit
DIN 912 and ISO 4762 socket head cap screws are often used when a compact cylindrical head and internal hex drive are required. For buyers comparing similar products, the hex socket head cap screw category can help separate DIN 912 socket screws from button head, countersunk, and flange socket styles.
For wholesale purchasing, provide diameter, length, thread pitch, grade, finish, and packaging rules at the start. This reduces back-and-forth and helps keep mixed-size quotations consistent.
Plan Wholesale Stock by Demand Pattern
Distributors usually buy M3 to M20 socket head cap screws in multiple lengths, with higher turnover sizes packed in small boxes and slower sizes packed in bulk cartons. XZ Fastener can follow a buyer’s stock list or help review size coverage based on common industrial use.
For warehouse planning, the guide on building a fastener stock list for wholesale buyers is useful when deciding size range, replenishment quantity, and labeling details.
Common Purchasing Descriptions
DIN 912 socket head cap screws are often purchased together with other metric fasteners for repair kits, maintenance stock, and project supply. Buyers may use the following descriptions in RFQs and purchase orders:
- DIN 912 / ISO 4762 socket head cap screws, alloy steel 12.9, black oxide finish, full thread or partial thread according to size.
- DIN 912 stainless steel 304 socket head cap screws, plain or passivated finish, metric coarse thread.
- DIN 912 stainless steel 316 socket head cap screws for outdoor, chemical, or marine-related assemblies.
- Mixed cartons containing DIN 933 full thread hex bolts, Grade 8.8 carbon steel hex bolts, and DIN 912 socket screws for distributor stock.
- Metric hex head bolts, zinc plated DIN 933 bolts, black oxide DIN 933 bolts, and hot dip galvanized DIN 933 bolts quoted with matching nuts and washers.
- Private-label wholesale packs with size label, material grade, finish, batch number, barcode, and carton mark available upon request.
Detailed Specifications Table
| Предмет | Common Options | Buyer Notes |
|---|---|---|
| Тип продукта | DIN 912 socket head cap screws, ISO 4762 socket cap screws, Allen head cap screws | Use the drawing or standard reference when head height, socket depth, or thread length is critical. |
| Диапазон размеров | M2 to M36 can be discussed; common wholesale sizes include M3, M4, M5, M6, M8, M10, M12, M16, and M20 | Provide diameter x length, such as M6 x 20, and specify coarse or fine thread. |
| Thread | Metric coarse thread; metric fine thread available upon request | Thread tolerance and thread length should be confirmed for assembly fit. |
| Материал | Alloy steel, carbon steel, stainless steel 304, stainless steel 316 | Material selection should match strength, corrosion environment, and cost target. |
| Класс Прочности | 8.8, 10.9, 12.9, A2-70, A4-70, A4-80 | Grade 12.9 is common for high-strength alloy steel socket head cap screws. |
| Обработка поверхности | Black oxide, zinc plated, yellow zinc, nickel plated, phosphate, Dacromet, Geomet, plain stainless, passivation | Coating thickness may affect thread fit and socket appearance; test samples can be reviewed when required. |
| Packaging | Bulk carton, small box, plastic bag, carton with inner boxes, pallet packing | Carton weight, label language, barcode, and pallet dimension should be stated before quotation. |
| Inspection | Dimension check, thread gauge check, head socket check, surface finish check, hardness test for heat-treated steel | Inspection report can be supplied according to order requirement. |
Material and Grade Explanation
Alloy steel socket head cap screws are widely used for strength-demanding assemblies. Grade 12.9 is common for machine tools, molds, fixtures, and equipment where high tensile strength and a compact head design are required.
Carbon steel grades 8.8 and 10.9 can be supplied when the application requires mechanical strength but does not require stainless corrosion resistance. Buyers should match grade with tightening method, mating material, and service load.
Stainless steel 304 and 316 are selected when corrosion resistance is more important than the highest alloy steel strength. A2 stainless is common for general equipment, while A4 stainless is preferred for outdoor, humid, or chloride-related environments.
For technical comparison between socket screws and hex bolts, the article on hex bolt vs socket head cap screw differences can help buyers confirm the correct head style before placing a bulk order.
Surface Finish Selection Guide
Black Oxide
Often selected for alloy steel DIN 912 screws used in indoor machinery and tooling. It provides a dark appearance and light protection when handled with suitable oiling.
Zinc Plated
Useful for general industrial stock where a bright finish and moderate corrosion protection are needed. Blue white zinc and yellow zinc can be discussed.
Nickel or Phosphate
Nickel plating is used for appearance and specific assembly requirements. Phosphate finish is often requested for parts needing oil retention or controlled friction.
Dacromet and Geomet
These coatings are considered when higher corrosion resistance is needed without traditional electroplating. Performance requirements should be stated in the RFQ.
Stainless Passivation
Passivation can improve the surface condition of stainless steel 304 and 316 socket head cap screws for corrosion-sensitive assemblies.
Coating Review
For outdoor or special finish projects, buyers can compare options in the fastener coating guide before confirming the order specification.
Manufacturing and Quality Control
DIN 912 socket head cap screws are typically produced through wire preparation, cold heading, socket forming, thread rolling, heat treatment when required, surface finishing, and final inspection. For heat-treated alloy steel screws, hardness and surface condition should be monitored because over-processing may affect function.
Dimension inspection focuses on head diameter, head height, socket size, thread length, overall length, thread pitch, and surface appearance. Thread checking may use ring gauges or other suitable tools. The thread inspection methods guide explains practical checks buyers can request before shipment.
Wholesale orders can also include carton sampling, label review, quantity check, and packing photo confirmation according to order requirement.
Приложения
Industrial and OEM Use
- Machine tools, automation equipment, CNC fixtures, and industrial frames.
- Mold and die assembly where strong clamping and recessed drive access are needed.
- Motorcycle, machinery repair, equipment maintenance, and spare part kits.
- Electrical enclosures, brackets, guide rails, and compact mechanical assemblies.
Wholesale and Distributor Use
- Mixed-size inventory programs for M3 to M20 socket screw ranges.
- Private label small boxes, bin labels, barcode labels, and palletized shipments.
- Combined container orders with bolts, nuts, washers, threaded rods, and screws.
- Replenishment orders based on stock movement and regional customer demand.
How to Get a Faster Quotation
For a clear quotation, send a size list in spreadsheet or text format. Include diameter, length, material, grade, finish, quantity per size, packaging method, label requirement, inspection requirement, and destination port or delivery address. If your order includes many sizes, the guide on information needed for accurate fastener quotes can help prepare a complete inquiry.
Packaging affects carton cost, labor, shipping damage risk, and warehouse receiving efficiency. For distributor orders, review how packaging affects fastener cost and handling before choosing bulk cartons, inner boxes, or retail-ready packs.
Часто задаваемые вопросы
Do you supply DIN 912 socket head cap screws for wholesale stock orders?
Yes. DIN 912 / ISO 4762 socket head cap screws can be supplied for wholesale stock programs, mixed-size orders, distributor replenishment, and OEM assembly requirements. Buyers should provide the size range, material, grade, finish, packaging, and quantity per size.
Which grades are commonly requested for DIN 912 socket head cap screws?
Common options include alloy steel 8.8, 10.9, and 12.9, plus stainless steel A2-70, A4-70, and A4-80. Grade 12.9 alloy steel is often requested for high-strength machinery applications, while stainless 304 and 316 are used when corrosion resistance is important.
Can XZ Fastener provide small-box packing and private-label carton marks?
Small boxes, bulk cartons, bag packing, label printing, barcode labels, and pallet packing can be discussed according to order requirement. Buyers should send label artwork, carton weight limits, and pallet requirements before quotation.
What finishes are available for DIN 912 socket head cap screws?
Available finishes may include black oxide, zinc plated, yellow zinc, nickel plated, phosphate, Dacromet, Geomet, plain stainless, and passivated stainless. The correct finish depends on material, corrosion environment, appearance, and thread fit requirement.
Can socket head cap screws be supplied with matching nuts and washers?
Yes. Matching nuts, flat washers, spring washers, and related fasteners can be quoted together when needed. This is useful for distributors and project buyers who want consolidated purchasing and consistent packaging.
What inspection documents can be provided for wholesale orders?
Inspection reports for dimensions, thread, surface finish, quantity, packaging, and hardness for heat-treated parts can be supplied according to order requirement. Material documents may also be discussed before order confirmation.
Send Your DIN 912 Socket Head Cap Screw Inquiry
To receive a practical quotation, send your size list, finish, quantity, packaging method, carton or pallet requirement, and inspection requirements. XZ Fastener can review wholesale stock orders, OEM assembly orders, and mixed fastener lists for consolidated purchasing.
Contact XZ Fastener