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Screws › Countersunk & Flat-Head Machine Screws

DIN7991 Hexagon Socket Countersunk Head Cap Screws A4-80

Updated 2026-11-04 · Markdown version

Model no. m3x6 to m16x60

US$0.0636 – 0.22 / piece

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

Head Style: Countersunk
Standard: DIN, GB, ANSI, BSW
Grade: A4-80
Material: Stainless Steel

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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

Model NO.	m3x6 to m16x60
Groove	Cross
Connection	Common Bolt
Head Style	Countersunk
Standard	DIN, GB, ANSI, BSW
Grade	A4-80
Transport Package	Ctns and Pallet
Specification	m3x6 to m16x60
Origin	Zhejiang China
HS Code	7318140001
Production Capacity	10000000
Customization	Available
Material	Stainless Steel
Type	Countersunk Head
Shipping Cost	Contact the supplier about freight and estimated delivery time.
DESCRIPTION	SUS316 /304
Category	Countersunk & Flat-Head Machine Screws

Technical parameters

Product Name	A2 A4 Stainless Steel DIN7991 SOCKET CSK HEAD MACHINE SCREW
Material	Stainless Steel 304/316
Color	Polish
Standard	DIN,ASME,ASNI,ISO
Grade	SS304,SS316
Finished	Polish
Thread	Coarse, Fine
Used	Building Industry Machinery

Description

DIN7991 Hexagon Socket Countersunk Head Cap Screws A4-80 is part of our countersunk & flat-head machine screws range (Screws).

Key details

Type: Countersunk Head
Standard: DIN, GB, ANSI, BSW
Material: Stainless Steel
Grade: A4-80
Head Style: Countersunk
Groove: Cross
Connection: Common Bolt
DESCRIPTION: SUS316 /304

Available configurations include head style, standard, grade and material. 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$0.0636 – 0.22 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 Hexagon Socket Countersunk Head Cap Screws A4-80?

The listed minimum order is 50,000 pieces, at US$0.0636 – 0.22 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 Hexagon Socket Countersunk Head Cap Screws A4-80?

Type: Countersunk Head; Standard: DIN, GB, ANSI, BSW; Material: Stainless Steel; Grade: A4-80; Head Style: Countersunk; Groove: Cross. The full specification table and any technical parameter tables are listed on this page.

Can this product be customized (OEM)?

Listed configurations include head style, standard, grade and material. 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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US$0.0636 – 0.22MOQ 50,000 piecesGet a quote WA