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DIN7991 Countersunk Hexagon Socket Head Screw Machine Screw Bolt
  • Standard & made-to-drawing parts
  • Checked before shipping
  • Air, sea & express delivery
Bolts › Countersunk, Plow & Elevator Bolts

DIN7991 Countersunk Hexagon Socket Head Screw Machine Screw Bolt

Updated 2026-11-03 · Markdown version

Model no. DIN 7991

US$0.0361,000–2,999 pieces US$0.0123,000+ pieces

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

Material
Carbon Steel
Head Style
Round
Standard
DIN, GB, ANSI, BSW, JIS, GOST
Grade
10.9
Model Number
Custom
Size
M3-M12,Custom
Package Size
25.00cm * 25.00cm * 20.00cm
Standard parts
7-15days
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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

CustomizationAvailable
MaterialCarbon Steel
TypeFlat Head
Model NO.DIN 7991
GrooveHexagon Socket
ConnectionScrew
Head StyleRound
StandardDIN, GB, ANSI, BSW, JIS, GOST
Grade10.9
MOQ1000PCS
Delivery Time15-30 Days
Payment TermTt 30% Deposit
Model NumberCustom
SizeM3-M12,Custom
Transport PackageBag or Caton
Specification25*25*15
OriginHebei
Package Size25.00cm * 25.00cm * 20.00cm
Package Gross Weight25.000kg
All our processes strictly adhere to ISO90012008 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 parts7-15days
Non-standard parts15-25days
CategoryCountersunk, Plow & Elevator Bolts

Technical parameters

FinishPlain, Black OxideMaterialSteel
Grade4.8 6.8 8.8 10.9 12.9Place of originHebei, China
MaterialCarbon steelDelivery time15-30
Head TypeRound headColorZinc

Description

DIN7991 Countersunk Hexagon Socket Head Screw Machine Screw Bolt is part of our countersunk, plow & elevator bolts range (Bolts).

Key details

  • Type: Flat Head
  • Standard: DIN, GB, ANSI, BSW, JIS, GOST
  • Material: Carbon Steel
  • Grade: 10.9
  • Size: M3-M12,Custom
  • Head Style: Round
  • Groove: Hexagon Socket
  • Connection: Screw

Available configurations include material, head style, standard, grade and model number. 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 – 0.036 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 Countersunk Hexagon Socket Head Screw Machine Screw Bolt?

The listed minimum order is 1,000 pieces, at US$0.012 – 0.036 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$0.036 for 1,000–2,999 pieces; US$0.012 for 3,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote.

What are the main specifications of DIN7991 Countersunk Hexagon Socket Head Screw Machine Screw Bolt?

Type: Flat Head; Standard: DIN, GB, ANSI, BSW, JIS, GOST; Material: Carbon Steel; Grade: 10.9; Size: M3-M12,Custom; 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 material, head style, standard, grade and model number. 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, plow & elevator bolts are available?

The Countersunk, Plow & Elevator Bolts category lists 533 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/bolts/countersunk-plow-elevator-bolts/

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$0.012 – 0.036MOQ 1,000 piecesGet a quote