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Bolts › U-Bolts & J-Bolts

High Strength Galvanized Square U Bolt Assembly with Clamp Plates

Updated 2026-11-04 · Markdown version

Model no. U bolt

US$1.201,000–4,999 pieces

US$0.965,000+ pieces

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

Head Style: Square
Standard: Customized
Grade: Gr 8.8 10.9 12.9
Finish: Black
Thread Type: External Thread
Precision Grade: Industrial Grade
Package Size: 15.00cm * 15.00cm * 10.00cm
Material: High Strength Steel

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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.	U bolt
Connection	Common Bolt
Head Style	Square
Standard	Customized
Grade	Gr 8.8 10.9 12.9
Application	Machinery, Chemical Industry, Environmental, Building
Finish	Black
Thread Type	External Thread
Anticorrosive Performance	Salt Spray Test Reach 1000-2000 Hours.
Precision Grade	Industrial Grade
Certificate	ISO9001:2008
Transport Package	Carton, Pallet
Specification	M5x10mm-M100x3000mm, 1/4X1"-4"X100"
Origin	China
HS Code	7318151001
Production Capacity	100ton/Month
Package Size	15.00cm * 15.00cm * 10.00cm
Package Gross Weight	3.000kg
Customization	Available
Material	High Strength Steel
Type	Square Head
Shipping Cost	Contact the supplier about freight and estimated delivery time.
Gonuo Hardware	Your Partner for DIN, ASTM & Custom Solutions
Stainless Steel Fasteners (A2/A4-80)	Superior corrosion resistance for marine, chemical, and food-grade environments.
High-Strength Bolts (Property Class 10.9/12.9, ASTM A325/A490)	Engineered for critical structural connections and extreme load-bearing applications.
High-Precision Components	Manufactured to tolerances as tight as ±0.01mm for advanced robotics, automotive, and aerospace assemblies.
Direct Factory Access with Engineering Support	Eliminate middleman costs and gain direct access to our engineering team for design optimization and material selection.
Build-to-Print Excellence	We seamlessly transition your custom designs from prototype to reliable, high-volume production.
Certified & Consistent Quality	Our ISO 9001-certified processes ensure every batch meets the same high standard, shipment after shipment.
Category	U-Bolts & J-Bolts

Technical parameters

Type	High-Precision Bolt
Material	Carbon Steel/ Starinless Steel/ Brass/Alu
Standard	Standard & Customized
Size	M5x10mm-M100x3000mm1/4X1" ---- 4"X100"
Grade	Gr4.6 4.8 6.8 8.8 10.9 12.9 & A2-70,A4-70,A2-80,A4-80

Description

High Strength Galvanized Square U Bolt Assembly with Clamp Plates is part of our u-bolts & j-bolts range (Bolts).

Key details

Type: Square Head
Standard: Customized
Material: High Strength Steel
Grade: Gr 8.8 10.9 12.9
Head Style: Square
Finish: Black
Connection: Common Bolt
Application: Machinery, Chemical Industry, Environmental, Building

Available configurations include head style, standard, grade, finish and thread type. 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$0.96 – 1.20 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 High Strength Galvanized Square U Bolt Assembly with Clamp Plates?

The listed minimum order is 1,000 pieces, at US$0.96 – 1.20 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$1.20 for 1,000–4,999 pieces; US$0.96 for 5,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote.

What are the main specifications of High Strength Galvanized Square U Bolt Assembly with Clamp Plates?

Type: Square Head; Standard: Customized; Material: High Strength Steel; Grade: Gr 8.8 10.9 12.9; Head Style: Square; 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 head style, standard, grade, finish and thread type. 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 u-bolts & j-bolts are available?

The U-Bolts & J-Bolts category lists 2,391 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/bolts/u-bolts-j-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

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

Request a quote for this product

US$0.96 – 1.20MOQ 1,000 piecesGet a quote WA