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Bolts › Countersunk, Plow & Elevator Bolts

DIN7991 10.9 Grade Alloy Steel Black Zinc Plated Countersunk Hex Socket Bolt

Updated 2026-11-03 · Markdown version

Model no. OKL-S93

US$0.006 – 6.00 / piece

MOQ 50,000 pieces · Final price confirmed in your quote

Material: Carbon Steel
Head Style: Counter Sunk Bolt
Standard: DIN, ANSI, GB, JIS, BSW, GOST
Grade: 10.9
Finish: Black
Thread Type: Machine Thread (Metric/Imperial)
Surface Finish: Zinc Plated (Carbon Steel) / Natural (Stainless St
Diameter Range: M3-M20

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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
Type	Countersunk Head
Model NO.	OKL-S93
Connection	Common Bolt
Head Style	Counter Sunk Bolt
Standard	DIN, ANSI, GB, JIS, BSW, GOST
Grade	10.9
Application	Machinery, Chemical Industry, Environmental, Building, Construction Industries, Furniture, Automotive
Finish	Black
Product Name	Black Zinc Plated DIN7991 Bolt
Keywords	DIN7991 Bolt
Thread Type	Machine Thread (Metric/Imperial)
Surface Finish	Zinc Plated (Carbon Steel) / Natural (Stainless St
Diameter Range	M3-M20
Length Range	6mm - 100mm
Point Style	Flat Point
Feature	Corrosion Resistant, Anti-Loosening, High Torque T
Standard Compliance	DIN, ISO, ANSI/ASME, JIS,Custom
Transport Package	Standard Packaging or Customized
Specification	Standard Specifications or Customized
Origin	Zhejiang, China
HS Code	7318150000
Production Capacity	300000000PCS/Year
Package Size	28.00cm * 18.00cm * 14.00cm
Package Gross Weight	20.000kg
Metric	M3 – M20;Customizable
Category	Countersunk, Plow & Elevator Bolts

Technical parameters

TECHNICAL PARAMETERS
Product Name	Black Zinc Plated DIN7991 CSK Head Hex Socket Bolt
Keywords	DIN7991 Bolt
Material	Alloy Steel (Grade 10.9)
Head Style	Countersunk (Flat Head, 90°)
Grade	10.9 (Tensile Strength: 1000 MPa)
Thread Type	Full Machine Thread (Metric/Imperial)
Surface Finish	Black Zinc Plated (Black Oxide Option Available)
Diameter Range	Metric: M3 – M20;Customizable
Length Range	6mm – 100mm (custom non-standard lengths available)
Point Style	Flat Point
Feature	Corrosion Resistant, Anti-Loosening, High Torque Transfer
Application	Industrial Machinery,Construction & Architecture,Marine & Offshore,Automotive & Transportation,etc
Standard Compliance	DIN,ISO,ANSI/ASME,JIS,Custom

Description

DIN7991 10.9 Grade Alloy Steel Black Zinc Plated Countersunk Hex Socket Bolt is part of our countersunk, plow & elevator bolts range (Bolts).

Key details

Type: Countersunk Head
Standard: DIN, ANSI, GB, JIS, BSW, GOST
Material: Carbon Steel
Grade: 10.9
Head Style: Counter Sunk Bolt
Finish: Black
Connection: Common Bolt
Product Name: Black Zinc Plated DIN7991 Bolt

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

Ordering through Engineering Hardware & Fasteners

Minimum order is 50,000 pieces at US$0.006 – 6.00 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 DIN7991 10.9 Grade Alloy Steel Black Zinc Plated Countersunk Hex Socket Bolt?

The listed minimum order is 50,000 pieces, at US$0.006 – 6.00 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 DIN7991 10.9 Grade Alloy Steel Black Zinc Plated Countersunk Hex Socket Bolt?

Type: Countersunk Head; Standard: DIN, ANSI, GB, JIS, BSW, GOST; Material: Carbon Steel; Grade: 10.9; Head Style: Counter Sunk Bolt; Finish: Black. 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 finish. 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$0.006 – 6.00MOQ 50,000 piecesGet a quote WA