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Screws › Countersunk & Flat-Head Machine Screws

DIN 7991 Hexagon Socket Countersunk Head Cap Screws

Updated 2026-11-04 · Markdown version

Model no. DIN 7991

US$0.0125,000–19,999 pieces

US$0.007220,000–49,999 pieces

US$0.003650,000+ pieces

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

Material: Stainless Steel
Head Style: Counter Sunk Bolt
Standard: DIN, GB, ANSI, BSW, JIS, ISO
Grade: A2-70, A4-80, A4-70
Thread: Unc, Unf, Un, Metric Coarse, Fine
Surface: Plain, Zinc Plated (Blue, White, Black, Yellow), N
Exterior Finish: Customized
Customized: Available

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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.	DIN 7991
Groove	Hexagon
Connection	Common Bolt
Head Style	Counter Sunk Bolt
Standard	DIN, GB, ANSI, BSW, JIS, ISO
Grade	A2-70, A4-80, A4-70
Thread	Unc, Unf, Un, Metric Coarse, Fine
Surface	Plain, Zinc Plated (Blue, White, Black, Yellow), N
Quality	100% Tested
Price	Factory Price
Lead Time	15-30 Days
Package	Standard Package or Customer's Packing
Box	Customer's Brand Box/Plain Box
MOQ	Can Be Negotiated
Shipment	by Sea / Truck / Plane / Express
Exterior Finish	Customized
Sample	Available
Customized	Available
Service	One-Stop Service
Online Sales	24 Hours Online
OEM/ODM	Available
Transport Package	Bulk Packaging, Small Box(Glue Box, Color Box)
Specification	M2 - M10
Origin	Ningbo, China
HS Code	7318159001
Production Capacity	1000tons Per Month
Package Size	10.00cm * 10.00cm * 5.00cm
Package Gross Weight	0.500kg
Category	Countersunk & Flat-Head Machine Screws

Technical parameters

Packaging	Bulk Packaging,Small Box(glue box,color box) & Carton&Wooden Pallet(Europallet 1200*800mm)or According to customer's requirement
Trade Term	EXW,FOB,CIF,CFR,CNF
Payment Term	T/T,Western Union,Paypal,L/C
Shipping Port	Ningbo,Zhapu,Shanghai
Advantages	• Professional and experienced production,quality inspection,package,design and sales team• Response within 2 hours• Full stock for almost standard fasteners• Fast delivery and response• Samples available

Description

DIN 7991 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, JIS, ISO
Material: Stainless Steel
Grade: A2-70, A4-80, A4-70
Thread: Unc, Unf, Un, Metric Coarse, Fine
Head Style: Counter Sunk Bolt
Groove: Hexagon
Connection: Common Bolt

Available configurations include material, head style, standard, grade and thread. 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$0.0036 – 0.012 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 DIN 7991 Hexagon Socket Countersunk Head Cap Screws?

The listed minimum order is 5,000 pieces, at US$0.0036 – 0.012 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$0.012 for 5,000–19,999 pieces; US$0.0072 for 20,000–49,999 pieces; US$0.0036 for 50,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote.

What are the main specifications of DIN 7991 Hexagon Socket Countersunk Head Cap Screws?

Type: Countersunk Head; Standard: DIN, GB, ANSI, BSW, JIS, ISO; Material: Stainless Steel; Grade: A2-70, A4-80, A4-70; Thread: Unc, Unf, Un, Metric Coarse, Fine; Head Style: Counter Sunk Bolt. 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 thread. 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$0.0036 – 0.012MOQ 5,000 piecesGet a quote WA