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العربية DIN 912 socket head cap screws bulk order manufacturer
XZ Fastener manufactures DIN 912 socket head cap screws for bulk orders, distributor replenishment, OEM assembly, machinery repair, and project supply. These internal hex drive screws can be supplied in alloy steel, carbon steel, stainless steel 304, and stainless steel 316, with strength grades and finishes selected according to the working environment. For bulk procurement, buyers can send size lists, carton limits, label rules, pallet plans, and inspection requirements before production. Related fastener products such as nuts, washers, threaded rods, and hex bolts can also be quoted together for consolidated purchasing.
Bulk order support includes mixed sizes, finish selection, packing design, carton labels, pallet loading, and inspection reports according to order requirement.
Quick Specs
What Buyers Should Know Before Sourcing DIN 912 Socket Head Cap Screws Bulk Orders
Confirm Dimensions and Use Conditions
DIN 912 socket head cap screws are selected when a cylindrical head, internal hex drive, and strong clamping force are required in a compact assembly. Before placing a bulk order, confirm diameter, length, pitch, grade, finish, and whether full thread or partial thread is required for each size.
For head style comparison, the hex socket head cap screw product category helps buyers separate socket cap screws from button head, countersunk, and socket flange styles.
Plan Bulk Production Clearly
Bulk orders need more than a size list. Buyers should also define acceptable carton weight, small-box quantity, label format, shipment marks, pallet dimensions, and inspection expectations. These details affect production sorting, packing labor, shipping safety, and warehouse receiving.
For importers and distributors planning repeated shipments, the guide on bulk fastener production planning provides useful points for order preparation.
Common Purchasing Descriptions
DIN 912 socket head cap screws may be ordered as a single item, mixed-size bulk order, or combined fastener shipment. Common purchasing descriptions include:
- DIN 912 / ISO 4762 socket head cap screws, alloy steel 12.9, black oxide finish, metric coarse thread.
- DIN 912 socket head cap screws, stainless steel 304 or 316, plain or passivated finish, bulk carton packing.
- Metric Allen head cap screws, M3 to M20 mixed sizes, small boxes with carton labels available upon request.
- DIN 933 full thread hex bolts and DIN 912 socket head cap screws supplied together for machinery maintenance stock.
- Grade 8.8 carbon steel hex bolts, metric hex head bolts, and socket head cap screws for industrial distributor orders.
- Zinc plated DIN 933 bolts, black oxide DIN 933 bolts, and hot dip galvanized DIN 933 bolts quoted with matching nuts and washers.
Detailed Specifications Table
| Specification Item | Available Options | Bulk Order Notes |
|---|---|---|
| Product Type | 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, and thread length are critical. |
| Size Range | Common metric sizes include M3, M4, M5, M6, M8, M10, M12, M16, M20; other sizes can be discussed | Send size list with quantity per size to avoid incorrect bulk allocation. |
| Thread Type | Metric coarse thread; metric fine thread available upon request | Thread pitch should be clearly stated for replacement parts and OEM assembly. |
| Material | Alloy steel, carbon steel, stainless steel 304, stainless steel 316 | Material should match strength, corrosion environment, and buyer cost target. |
| Strength Grade | 8.8, 10.9, 12.9, A2-70, A4-70, A4-80 | Grade 12.9 is common for high-strength alloy steel socket screws used in tooling and machinery. |
| Surface Finish | Black oxide, zinc plated, yellow zinc, nickel plated, phosphate, Dacromet, Geomet, plain stainless, passivation | Coating thickness and appearance should be confirmed before bulk production if assembly fit is sensitive. |
| Packaging | Bulk carton, inner box, plastic bag, small box, customer label, pallet packing | Carton weight limit, label language, barcode, and pallet loading plan should be provided in advance. |
| Inspection | Dimension check, thread gauge check, socket size check, surface inspection, hardness test for heat-treated steel | Inspection report and packing photos can be supplied according to order requirement. |
Material and Grade Explanation
Alloy steel socket head cap screws are commonly selected for grades 10.9 and 12.9 when the assembly requires high tensile strength, compact head design, and reliable wrench engagement. These screws are often used in molds, machine tools, fixtures, and heavy-duty equipment.
Carbon steel socket head cap screws may be suitable for general mechanical assemblies where stainless corrosion resistance is not required. Grade and finish should be matched with tightening method, load condition, and service environment.
Stainless steel 304 and 316 socket head cap screws are used when corrosion resistance is a priority. Stainless 304 is common for general industrial use, while stainless 316 is selected for humid, outdoor, marine-related, or chemical environments.
When buyers compare socket cap screws with hex bolts, the article on hex bolt vs socket head cap screw differences can help confirm the correct head type before issuing a bulk purchase order.
Surface Finish Selection Guide
Black Oxide
Often used for alloy steel DIN 912 screws in indoor machinery, tooling, and fixtures. Oiling may be needed for storage and handling protection.
Zinc Plated
Suitable for general industrial stock where a bright appearance and moderate corrosion protection are required.
Nickel Plated
Selected for appearance, specific assembly requirements, or buyer preference. Samples can be reviewed before bulk order confirmation.
Phosphate
Often requested where controlled friction, oil retention, or darker surface appearance is needed for mechanical assemblies.
Dacromet and Geomet
These coatings can be considered for higher corrosion resistance requirements, especially when traditional electroplating is not preferred.
Selection Support
Buyers can compare zinc, HDG, Dacromet, PTFE, and other options in the fastener coating guide before finalizing finish requirements.
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, sorting, and packing. For alloy steel grades 10.9 and 12.9, heat treatment control is important for strength and hardness consistency.
Quality control may include head diameter, head height, socket size, total length, thread length, pitch, thread fit, hardness, finish appearance, and packaging quantity checks. For thread verification, buyers may refer to thread inspection methods for fastener quality control.
For bulk orders, XZ Fastener can arrange inspection photos, packing photos, carton label review, and shipment document support according to order requirement.
Applications
Industrial Production
- Machine tools, CNC fixtures, automation frames, and assembly equipment.
- Mold and die fastening where high clamping force and compact head design are needed.
- Motorcycle repair, machinery maintenance, equipment rebuilding, and spare part kits.
- Electrical enclosures, brackets, guide rails, tooling plates, and mechanical housings.
Bulk Purchasing Programs
- Distributor stock orders covering common M3 to M20 sizes and multiple lengths.
- OEM production lots with repeated specifications and controlled packing format.
- Mixed container orders with socket screws, hex bolts, nuts, washers, and threaded rods.
- Private label cartons, small boxes, and barcode labels available upon request.
How to Get a Faster Quotation
Send a clear size list with diameter, length, thread pitch, material, grade, finish, quantity per size, and packaging rules. If your order includes many sizes, include carton weight limits, inner box quantity, label format, pallet requirement, inspection requirement, and destination details.
Bulk packing can affect unit cost, sorting time, carton damage risk, and warehouse receiving efficiency. The guide on how packaging affects fastener cost and warehouse handling can help buyers choose between bulk cartons, small boxes, bag packing, and palletized shipment.
FAQ
Can XZ Fastener manufacture DIN 912 socket head cap screws for bulk orders?
Yes. DIN 912 / ISO 4762 socket head cap screws can be manufactured for bulk orders, distributor stock, OEM assembly, and project supply. Buyers should provide size, material, grade, finish, packaging, and quantity per size.
What information is needed before quoting a bulk order?
Please send the size list, thread pitch, material, strength grade, surface finish, quantity, packaging method, carton or pallet requirements, inspection requirements, and destination information. Drawings or samples are helpful when non-standard details are involved.
Which grades are common 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 is often selected for high-strength machinery and tooling applications.
Can bulk orders include mixed sizes and custom labels?
Yes. Mixed-size bulk orders, small boxes, plastic bags, carton labels, barcode labels, and pallet marks can be arranged according to order requirement. Buyers should confirm label content before production packing begins.
What finishes can be supplied for DIN 912 socket head cap screws?
Finish options may include black oxide, zinc plated, yellow zinc, nickel plated, phosphate, Dacromet, Geomet, plain stainless, and passivated stainless. The suitable finish depends on material, application environment, appearance requirement, and thread fit.
Can matching nuts, washers, and other fasteners be ordered together?
Yes. Matching nuts, flat washers, spring washers, DIN 933 hex bolts, threaded rods, and other related fasteners can be quoted together for consolidated purchasing and easier shipment planning.
Prepare Your Bulk DIN 912 Socket Head Cap Screw Inquiry
Send your size list, finish, quantity, packaging method, carton or pallet plan, and inspection requirements. XZ Fastener can review bulk orders for DIN 912 socket head cap screws, matching washers, nuts, and related fasteners according to your purchasing plan.
Contact XZ Fastener