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M8 Black Grade 10.9 Countersunk Flat Head Hex Socket Cap Screw

Updated 2026-11-04 · Markdown version

Model no. DIN7991

US$1.201,000–9,999 pieces

US$0.1210,000–99,999 pieces

US$0.012100,000+ pieces

MOQ 1,000 pieces · Final price confirmed in your quote

Material: Carbon Steel Stainless Steel Alloy Steel
Head Style: Counter Sunk Bolt
Standard: DIN, GB, ANSI, BSW, JIS, GOST
Grade: 4.8, 8.8, 10.9, 12.9, etc
Non-Standards: OEM Is Available, According to Drawing or Samples
We work with various materials such as: 304/316 Stainless Steel,Carbon Steel,High-Strength Alloy Steel,Aluminum, Copper, and Titanium

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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	Carbon Steel Stainless Steel Alloy Steel
Type	Countersunk Head
Model NO.	DIN7991
Groove	Hexagon
Connection	Common Bolt
Head Style	Counter Sunk Bolt
Standard	DIN, GB, ANSI, BSW, JIS, GOST
Grade	4.8, 8.8, 10.9, 12.9, etc
Minimumorder (MOQ)	According to Customer Demand
Non-Standards	OEM Is Available, According to Drawing or Samples
Transport Package	Foam Bags / Cartons / Wooden Cases
Specification	M2-M30/1/4"-2"
Origin	China
Our productrange includes	Screws&Bolts,Nuts,Washers,CNC Turned Parts
We work with various materials such as	304/316 Stainless Steel,Carbon Steel,High-Strength Alloy Steel,Aluminum, Copper, and Titanium
Category	Socket Head Cap & Allen Screws

Technical parameters

Product Name	Hex Socket Flat Countersunk Head Screw
Standard	GB/DIN/BS/ANSI; DIN 7991, ISO 10642, ASME/ANSI B18.3
Grade	4.8/6.8/8.8/10.9/12.9; 304(A2), 316(A4); 2205, B8, B8T, B7, etc.
Material	Carbon Steel/Stainless steel/Titanium/Brass
Surface Treatment	Plain, Black, Zinc, HDG, Dacromet, Nickel Plated, polished, etc.
Packing detailes	Woven Bag,Carton,Pallets,or as your requests.
Payment Terms	T/T
Delivery Method	by sea, by air or by express service

Description

M8 Black Grade 10.9 Countersunk Flat Head Hex Socket Cap Screw is part of our socket head cap & allen screws range (Screws).

Key details

Type: Countersunk Head
Standard: DIN, GB, ANSI, BSW, JIS, GOST
Material: Carbon Steel Stainless Steel Alloy Steel
Grade: 4.8, 8.8, 10.9, 12.9, etc
Head Style: Counter Sunk Bolt
Groove: Hexagon
Connection: Common Bolt
Minimumorder (MOQ): According to Customer Demand

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

Ordering through Engineering Hardware & Fasteners

Minimum order is 1,000 pieces at US$0.012 – 1.20 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 M8 Black Grade 10.9 Countersunk Flat Head Hex Socket Cap Screw?

The listed minimum order is 1,000 pieces, at US$0.012 – 1.20 per piece. Smaller trial quantities or samples can be requested in your inquiry; Engineering Hardware & Fasteners confirms what is possible for your size.

How does the price change with quantity?

Volume pricing: US$1.20 for 1,000–9,999 pieces; US$0.12 for 10,000–99,999 pieces; US$0.012 for 100,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote.

What are the main specifications of M8 Black Grade 10.9 Countersunk Flat Head Hex Socket Cap Screw?

Type: Countersunk Head; Standard: DIN, GB, ANSI, BSW, JIS, GOST; Material: Carbon Steel Stainless Steel Alloy Steel; Grade: 4.8, 8.8, 10.9, 12.9, etc; Head Style: Counter Sunk Bolt; Groove: Hexagon. 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 non-standards. 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$0.012 – 1.20MOQ 1,000 piecesGet a quote WA