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Fastener Sets & Assemblies › Assortment Kits & Mixed Fastener Sets

Black Oxide High Tensile Structural Hex Bolt Kit, Precision Threaded Hex Head Bolt with Matching Nut & Washers

Updated 2026-11-04 · Markdown version

Model no. Hex Structural Bolt

US$0.002310,000–49,999 pieces

US$0.001950,000–79,999 pieces

US$0.001680,000+ pieces

MOQ 10,000 pieces · Final price confirmed in your quote

Material: High Strength Steel
Head Style: Hexagonal
Standard: DIN, ANSI, GB, JIS, BSW, GOST
Grade: 8.8
Finish: Color-Zinc Plated
Other Material: Stainless Steel
Grade Level: A2-70, A4-70, A4-80
Package Size: 30.00cm * 25.00cm * 25.00cm

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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	High Strength Steel
Type	Hexagon Head
Model NO.	Hex Structural Bolt
Connection	Common Bolt
Head Style	Hexagonal
Standard	DIN, ANSI, GB, JIS, BSW, GOST
Grade	8.8
Application	Machinery, Chemical Industry, Environmental, Building
Finish	Color-Zinc Plated
Installation Feature	One-Piece Complete Set, Direct on-Site Assembly
Other Material	Stainless Steel
Grade Level	A2-70, A4-70, A4-80
Stainless Steel	201 302 314 430
Sample	Free
Transport Package	Box + Pallet
Specification	M6-70
Origin	Hebei, China
HS Code	7318190000
Production Capacity	3000 Tons/Month
Package Size	30.00cm * 25.00cm * 25.00cm
Package Gross Weight	20.000kg
Product Name	Hex Structural Bolt
Metric size	M6 × 70 mm Inch size: 1/4" × 2-3/4" Customized sizes are available.
Samples	Samples are complimentary, delivery charges apply
Package	Inner bag + Master carton + Wooden pallet + Stretch film, with desiccant & edge protectors as needed.
Payment	T/T, L/C
Shipping Port	Tianjin Port, Qingdao Port
Inspection	100% QC Steps Inspect Before Shipment
Category	Assortment Kits & Mixed Fastener Sets

Technical parameters

Product Name: Hex Structural Bolt

Size: Metric size: M6 × 70 mm Inch size: 1/4" × 2-3/4" Customized sizes are available.

Material: Stainless Steel 201 304 316 430 & Carbon Steel

Grade: A2-70, A4-70, A4-80 & 8.8, 10.9, 12.9, etc.

Finish: Polishing, Black Oxide, Zinc Plating, Hot-dip Galvanizing, Bluing, etc.

Standard: GB, DIN, ISO, ANSI/ASTM, BS, BSW, etc

Samples: Samples are complimentary, delivery charges apply

Package: Inner bag + Master carton + Wooden pallet + Stretch film, with desiccant & edge protectors as needed.

Payment: T/T, L/C

Shipping Port: Tianjin Port, Qingdao Port

Inspection: 100% QC Steps Inspect Before Shipment

Description

Black Oxide High Tensile Structural Hex Bolt Kit, Precision Threaded Hex Head Bolt with Matching Nut & Washers is part of our assortment kits & mixed fastener sets range (Fastener Sets & Assemblies).

Key details

Type: Hexagon Head
Standard: DIN, ANSI, GB, JIS, BSW, GOST
Material: High Strength Steel
Grade: 8.8
Head Style: Hexagonal
Finish: Color-Zinc Plated
Connection: Common Bolt
Application: Machinery, Chemical Industry, Environmental, Building

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 10,000 pieces at US$0.0016 – 0.0023 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 Black Oxide High Tensile Structural Hex Bolt Kit, Precision Threaded Hex Head Bolt with Matching Nut & Washers?

The listed minimum order is 10,000 pieces, at US$0.0016 – 0.0023 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$0.0023 for 10,000–49,999 pieces; US$0.0019 for 50,000–79,999 pieces; US$0.0016 for 80,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote.

What are the main specifications of Black Oxide High Tensile Structural Hex Bolt Kit, Precision Threaded Hex Head Bolt with Matching Nut & Washers?

Type: Hexagon Head; Standard: DIN, ANSI, GB, JIS, BSW, GOST; Material: High Strength Steel; Grade: 8.8; Head Style: Hexagonal; Finish: Color-Zinc Plated. 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 assortment kits & mixed fastener sets are available?

The Assortment Kits & Mixed Fastener Sets category lists 3,161 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/fastener-sets-assemblies/assortment-kits-mixed-fastener-sets/

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$0.0016 – 0.0023MOQ 10,000 piecesGet a quote WA