Import Din 912 Hexagon Socket Head Cap Screws — Buy in wholesale FOB from Supplier in China

Din 912 Hexagon Socket Head Cap screws from Ningbo Steel Bolt Co., Ltd are precision-engineered fasteners designed for high-torque applications requiring a flush or countersunk finish. These screws feature a hexagonal internal drive, a full or partial thread, and a chamfered tip, manufactured to ISO 4762 standards. Available in materials including carbon steel, alloy steel, and stainless steel, with grades ranging from 8.8 to 12.9, they are suited for structural and mechanical assemblies where strength and reliability are critical.

The screws are produced using cold heading and thread rolling processes, ensuring consistent dimensional accuracy and surface integrity. Surface finishes include plain, zinc-plated, and black oxide, each offering different levels of corrosion resistance without altering mechanical performance. Zinc plating provides moderate protection in dry environments, while black oxide is preferred for applications requiring minimal glare and moderate rust inhibition. Stainless steel variants, typically A2 or A4 grade, meet standard corrosion resistance requirements for marine or chemical environments.

These screws are commonly purchased by machinery manufacturers, automotive suppliers, and industrial equipment assemblers who require threaded fasteners with high tensile strength and precise torque control. Buyers typically order in cartons or palletized quantities, with standard packaging in plastic bags inside corrugated cartons. The supplier ships from Shanghai or Ningbo ports under T/T payment terms, with monthly capacity of 100,000 pieces. Confirm thread length, head height, and finish requirements before placing bulk orders.

Ningbo Steel Bolt Co., Ltd operates from Zhenhai District in Ningbo, Zhejiang, a region known for precision fastener manufacturing. The company is listed with a harbor trust tier, indicating it has met basic verification requirements for business registration and factory location. There is no public data on years in operation, employee count, or export history. The supplier's listing confirms production capability and standard product lines but does not claim certifications, client names, or production volume beyond stated monthly capacity.

The supplier responds to inquiries at a rate of 0.00%, with no recorded average response time, suggesting limited or no active communication channel. Buyers should treat this as a manufacturer with documented output capacity but unverified responsiveness. All claims in the listing are limited to material, grade, and packaging details. No claims are made regarding ISO certification, quality control processes, or in-house testing facilities. Direct confirmation of specifications is required before order placement.