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Screws › Countersunk & Flat-Head Machine Screws

DIN7991 Stainless Steel Hexagon Socket Countersunk Head Cap Screws

Updated 2026-11-04 · Markdown version

Model no. M6x25

US$0.12 / piece

MOQ 50,000 pieces · Final price confirmed in your quote

Material: Stainless Steel
Head Style: Counter Sunk Bolt
Standard: DIN, ANSI, GB, JIS, BSW, GOST
Grade: A2 / SUS304
Finish: Passivation
Color: Nickle
Maerial Grade: Stainless Steel 304
in Stoc Size: M3 up to M20

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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.	M6x25
Connection	Common Bolt
Head Style	Counter Sunk Bolt
Standard	DIN, ANSI, GB, JIS, BSW, GOST
Grade	A2 / SUS304
Finish	Passivation
Color	Nickle
Maerial Grade	Stainless Steel 304
Specifications	DIN7991/ANSI B18.2.1
in Stoc Size	M3 up to M20
Transport Package	DIY Box, Cardboard Box, Carton, Pallet
Specification	DIN, BS, JIS, ANSI all sizes
Origin	Zhejiang China
HS Code	73181590
Production Capacity	350 Tons/Month
Package Size	28.00cm * 26.00cm * 12.00cm
Package Gross Weight	16.800kg
Category	Countersunk & Flat-Head Machine Screws

Technical parameters

All measurements in millimeters (mm) DIN912 Standard Specifications
d1	t min	s	k max	d2
M2	1	1.5	2	3.8
M3	1.3	2.5	3	5.5
M4	2	3	4	7
M5	2.5	4	5	8.5
M6	3	5	6	10
M8	4	6	8	13
M10	5	8	10	16
M12	6	10	12	18
M14	7	12	14	21
M16	8	14	16	24
M18	9	14	18	27
M20	10	17	20	30
M24	12	19	24	36
M27	13.5	19	27	40
M30	15.5	22	30	45
M36	19	27	36	54

Description

DIN7991 Stainless Steel Hexagon Socket Countersunk Head Cap Screws is part of our countersunk & flat-head machine screws range (Screws).

Key details

Type: Countersunk Head
Standard: DIN, ANSI, GB, JIS, BSW, GOST
Material: Stainless Steel
Grade: A2 / SUS304
Head Style: Counter Sunk Bolt
Finish: Passivation
Connection: Common Bolt
Color: Nickle

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

Ordering through Engineering Hardware & Fasteners

Minimum order is 50,000 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 DIN7991 Stainless Steel Hexagon Socket Countersunk Head Cap Screws?

The listed minimum order is 50,000 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 DIN7991 Stainless Steel Hexagon Socket Countersunk Head Cap Screws?

Type: Countersunk Head; Standard: DIN, ANSI, GB, JIS, BSW, GOST; Material: Stainless Steel; Grade: A2 / SUS304; Head Style: Counter Sunk Bolt; Finish: Passivation. 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, grade and finish. 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 countersunk & flat-head machine screws are available?

The Countersunk & Flat-Head Machine Screws category lists 2,424 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/screws/countersunk-flat-head-machine-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

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