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Hex Socket Flat Countersunk Head Cap Screws DIN 7991

Updated 2026-11-04 · Markdown version

Model no. Multi-size

US$0.11 – 12.00 / piece

MOQ 10,000 pieces · Final price confirmed in your quote

Head Style: Round
Standard: DIN
Grade: 4.8/8.8/10.9/12.9
Finish: Hot Galvanizing
Surface Treatment: Zinc Plated
Thread Size: Full Thread
Hot DIP Treatment: No
Material: Carbon Steel/Stainless Steel

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.	Multi-size
Connection	Common Bolt
Head Style	Round
Standard	DIN
Grade	4.8/8.8/10.9/12.9
Application	Machinery, Chemical Industry, Environmental, Building
Finish	Hot Galvanizing
Produce Method	Cold Heading
Surface Treatment	Zinc Plated
Thread Size	Full Thread
Hot DIP Treatment	No
Transport Package	Carton with Pallet
Specification	Multi-size
Origin	China
HS Code	7318150000
Production Capacity	3billion/Year
Customization	Available
Material	Carbon Steel/Stainless Steel
Type	Hexagon Head
Category	Socket Head Cap & Allen Screws

Technical parameters

Material	Carbon steel/Stainless steel
Grade	4.8, 8.8, 10.9, 12.9
Size	M3-M24
Length	6mm--200mm
Standrad	DIN/ASME/ANSI/ISO/JIS

Description

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

Key details

Type: Hexagon Head
Standard: DIN
Material: Carbon Steel/Stainless Steel
Grade: 4.8/8.8/10.9/12.9
Thread Size: Full Thread
Head Style: Round
Surface Treatment: Zinc Plated
Finish: Hot Galvanizing

Available configurations include head style, standard, grade, 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 10,000 pieces at US$0.11 – 12.00 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 Hex Socket Flat Countersunk Head Cap Screws DIN 7991?

The listed minimum order is 10,000 pieces, at US$0.11 – 12.00 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 Hex Socket Flat Countersunk Head Cap Screws DIN 7991?

Type: Hexagon Head; Standard: DIN; Material: Carbon Steel/Stainless Steel; Grade: 4.8/8.8/10.9/12.9; Thread Size: Full Thread; 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 head style, standard, grade, 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$0.11 – 12.00MOQ 10,000 piecesGet a quote WA