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Stainless Steel DIN 7991 Hex Socket Countersunk Head Screw

Updated 2026-11-04 · Markdown version

Model no. QS-Fastener-004

US$0.12 / piece

MOQ 100 pieces · Final price confirmed in your quote

Material: Stainless Steel
Head Style: Round
Standard: DIN, ANSI, GB, JIS, BSW
Finish: Passivation
Surface Treatment: Plain
Thread: Full Thread, Unc, Unf
Length: According to Client's Requirement
Size Range: M6-M100

Specifications are as listed for this product. Engineering Hardware & Fasteners confirms ratings, mating parts, compatibility, packing and lead time with you before you order.

Specifications

Customization	Available
Material	Stainless Steel
Type	Countersunk Head
Model NO.	QS-Fastener-004
Connection	Common Bolt
Head Style	Round
Standard	DIN, ANSI, GB, JIS, BSW
Application	Machinery, Chemical Industry, Environmental, Building
Finish	Passivation
Surface Treatment	Plain
Delivery	2-4 Weeks
Thread	Full Thread, Unc, Unf
Length	According to Client's Requirement
Size Range	M6-M100
Length Range	10mm - 1000mm
Transport Package	Plywood Cases/Wooden Boxes
Specification	M8*35
Origin	China
HS Code	7318159090
Package Size	20.00cm * 20.00cm * 15.00cm
Package Gross Weight	2.000kg
Lead Time	30 days (1 - 100000 Pieces) To be negotiated ( > 100000 Pieces)
Step 1 confirms the requirement	function, material, dimensions, appearance and any special needs. Step 2 turns the requirement into 2D or 3D drawings that both sides review. Step 3 prices the job from raw material, processing hours and complexity. Step 4 makes a sample to verify the design before volume work.
ISO 9001	2015 quality management system certificate.
Category	Socket Head Cap & Allen Screws

Technical parameters

Item	Range
Size Range	M2 to M16, customized sizes available
Material	Stainless steel 201, 304, 316, 430 and carbon steel
Grade	A2-70, A4-70, A4-80 and 8.8, 10.9, 12.9
Finish	Polishing, black oxide, zinc plating, hot-dip galvanizing, bluing
Standard	GB, DIN, ISO, ANSI/ASTM, BS, BSW
Samples	Complimentary, delivery charges apply
Package	Inner bag + master carton + wooden pallet + stretch film, with desiccant and edge protectors as needed
Shipping Port	Xiamen
Inspection	100 percent QC steps before shipment

Question

Answer

Description

Stainless Steel DIN 7991 Hex Socket Countersunk Head Screw is part of our socket head cap & allen screws range (Screws).

Key details

Type: Countersunk Head
Standard: DIN, ANSI, GB, JIS, BSW
Material: Stainless Steel
Thread: Full Thread, Unc, Unf
Length: According to Client's Requirement
Head Style: Round
Surface Treatment: Plain
Finish: Passivation

Available configurations include material, head style, standard, finish and surface treatment. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request.

Ordering through Engineering Hardware & Fasteners

Minimum order is 100 pieces at US$0.12 per piece. Send one inquiry with the part number, quantity and destination, and Engineering Hardware & Fasteners confirms size, thread, material, grade, finish, price, lead time and shipping, checks the goods before dispatch and ships them to you.

Frequently asked questions

What is the minimum order quantity (MOQ) for Stainless Steel DIN 7991 Hex Socket Countersunk Head Screw?

The listed minimum order is 100 pieces, at US$0.12 per piece. Smaller trial quantities or samples can be requested in your inquiry; Engineering Hardware & Fasteners confirms what is possible for your size.

What are the main specifications of Stainless Steel DIN 7991 Hex Socket Countersunk Head Screw?

Type: Countersunk Head; Standard: DIN, ANSI, GB, JIS, BSW; Material: Stainless Steel; Thread: Full Thread, Unc, Unf; Length: According to Client's Requirement; Head Style: Round. The full specification table and any technical parameter tables are listed on this page.

Can this product be customized (OEM)?

Listed configurations include material, head style, standard, finish and surface treatment. Size, thread, length, material and grade, surface finish, head marking, packaging and labels can be quoted to your specification or drawing.

What is the lead time and how is it shipped?

Lead time depends on quantity and customization and is confirmed in your quote. Engineering Hardware & Fasteners checks the goods before dispatch and ships by express, air or sea; mixed orders can be consolidated in one shipment.

Which other socket head cap & allen screws are available?

The Socket Head Cap & Allen Screws category lists 2,042 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/screws/socket-head-cap-allen-screws/

How we work

Specified, checked and shipped by Engineering Hardware & Fasteners

Engineering Hardware & Fasteners supplies bolts, screws, nuts, washers, anchors, rivets and fastening hardware to equipment makers, contractors, distributors and maintenance teams. Orders go through one controlled process: size, thread, material, grade and finish confirmed, samples approved, dimensions, thread fit and plating checked before packing, then packed for export — standard or made to drawing.

DIN, ISO, ASTM, ANSI, JIS and GB standard parts
Non-standard parts made to your drawing
Dimensions, thread gauges and plating checked before packing
Export cartons and pallets, consolidated mixed orders
Samples available for approval before mass production

More about us → · Request a sample or custom quote →

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US$0.12MOQ 100 piecesGet a quote WA