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Screws › Countersunk & Flat-Head Machine Screws

Flat Head Screw DIN7991 Socket Countersunk Hexagon Socket Countersunk Head Cap Screws

Updated 2026-11-04 · Markdown version

Model no. DIN7991

US$0.0485,000–9,999 pieces

US$0.03610,000+ pieces

MOQ 5,000 pieces · Final price confirmed in your quote

Head Style: Counter Sunk Bolt
Standard: DIN, GB, ANSI, BSW
Grade: 10.9
Material: Carbon Steel
Standard parts: 7-15days
Non-standard parts: 15-25days

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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.	DIN7991
Groove	Hexagon
Connection	Common Bolt
Head Style	Counter Sunk Bolt
Standard	DIN, GB, ANSI, BSW
Grade	10.9
MOQ	5000PCS
Payment Term	Tt 30% Deposit
Scope of Use	Mechanical Processing
Transport Package	Carton+Pallet
Specification	M2.5-M24
Origin	China
Customization	Available
Material	Carbon Steel
Type	Countersunk Head
Shipping Cost	Contact the supplier about freight and estimated delivery time.
All our processes strictly adhere to ISO9001	2008 procedures. We have strict quality control from producing to delivery.Our company had strong technology support, We have cultivated a group of managers who are familiar with product quality , good at modern concept of management.
Standard parts	7-15days
Non-standard parts	15-25days
Category	Countersunk & Flat-Head Machine Screws

Description

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

Key details

Type: Countersunk Head
Standard: DIN, GB, ANSI, BSW
Material: Carbon Steel
Grade: 10.9
Head Style: Counter Sunk Bolt
Groove: Hexagon
Connection: Common Bolt
Scope of Use: Mechanical Processing

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

Ordering through Engineering Hardware & Fasteners

Minimum order is 5,000 pieces at US$0.036 – 0.048 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 Flat Head Screw DIN7991 Socket Countersunk Hexagon Socket Countersunk Head Cap Screws?

The listed minimum order is 5,000 pieces, at US$0.036 – 0.048 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$0.048 for 5,000–9,999 pieces; US$0.036 for 10,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote.

What are the main specifications of Flat Head Screw DIN7991 Socket Countersunk Hexagon Socket Countersunk Head Cap Screws?

Type: Countersunk Head; Standard: DIN, GB, ANSI, BSW; Material: Carbon Steel; Grade: 10.9; 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 head style, standard, grade, material and standard parts. 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

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

Request a quote for this product

US$0.036 – 0.048MOQ 5,000 piecesGet a quote WA