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Fastener Sets & Assemblies › Assortment Kits & Mixed Fastener Sets

Includes Washers & Nuts Bulk Discounts MOQ 100+ Train Suspension U-Bolt Kit

Updated 2026-11-04 · Markdown version

Model no. U-bolt

US$7.20 – 21.60 / piece

MOQ 10 pieces · Final price confirmed in your quote

Material: Nodular Iron/Ductile Iron/Gray/Gray Iron/Steel
Surface: Trimming, Deburring, Polishing, Shot Blasting
Package Size: 10.00cm * 20.00cm * 30.00cm

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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	Nodular Iron/Ductile Iron/Gray/Gray Iron/Steel
Surface	Trimming, Deburring, Polishing, Shot Blasting
Model NO.	U-bolt
Sand Core Type	Resin Sand Core
Process	Squeeze Casting / Liquid Forging
Main Product	Railcar Grab U-Bolt Uncoupler Lever Brakeshoe Key
Transport Package	Carton/Wooden Box
Specification	3-1/8''
Origin	Shandong China
HS Code	8607290000
Production Capacity	1000PCS/Month
Package Size	10.00cm * 20.00cm * 30.00cm
Package Gross Weight	5.000kg
Cold chamber die casting machine	200T/280T/400T/600T/800T/1100T.CNC centers, CNC turning, CNC lathes, electrical pulse, line cutting, milling, drilling, grinding
Squeeze Casting	A356+T6, A356.2+T6, AlSi9Mg+T6, Zl108+T6, AlTi-Alloy+T6
Category	Assortment Kits & Mixed Fastener Sets

Technical parameters

Length	Dimension B	Thread
4-1/8''	3-1/8''	5/8''-11 UNC 2A

Process	Aluminum Die casting, Squeeze casting+T6, Zinc Alloy die casting, CNC machining, Turning
Equipment	Cold chamber die casting machine:200T/280T/400T/600T/800T/1100T.CNC centers, CNC turning, CNC lathes, electrical pulse, line cutting, milling, drilling, grinding
Material	A319, A356, A360, A369, A380, A383, A384, A413, A535, 44300, 44300, 46000, AlSi9Mg, AlSi9Cu3, ADC12, ZL102, ZL104, ZL108, Zamak2,3,5,7 ect.Squeeze Casting: A356+T6, A356.2+T6, AlSi9Mg+T6, Zl108+T6, AlTi-Alloy+T6
Surface	Trimming, Deburring, Polishing, Shot blasting, Sand blasting, Tumbling, Powder coating, Anodizing, Chrome, Zinc, Electrophoresis, Passivation, Chemical coating.
Software Assistance	Pro-e/Solid work/UG/Auto CAD/CATIA
Products Application	Automotive industry, Bicycle and motorcycle, Door and windows and furniture, Household appliances, Gas meter, Power tools, LED lighting, Medical instrument parts, etc.

Description

Includes Washers & Nuts Bulk Discounts MOQ 100+ Train Suspension U-Bolt Kit is part of our assortment kits & mixed fastener sets range (Fastener Sets & Assemblies).

Key details

Material: Nodular Iron/Ductile Iron/Gray/Gray Iron/Steel
Surface: Trimming, Deburring, Polishing, Shot Blasting
Sand Core Type: Resin Sand Core
Process: Squeeze Casting / Liquid Forging
Main Product: Railcar Grab U-Bolt Uncoupler Lever Brakeshoe Key
Squeeze Casting: A356+T6, A356.2+T6, AlSi9Mg+T6, Zl108+T6, AlTi-Alloy+T6

Available configurations include material, surface and package size. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request.

Ordering through Engineering Hardware & Fasteners

Minimum order is 10 pieces at US$7.20 – 21.60 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 Includes Washers & Nuts Bulk Discounts MOQ 100+ Train Suspension U-Bolt Kit?

The listed minimum order is 10 pieces, at US$7.20 – 21.60 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 Includes Washers & Nuts Bulk Discounts MOQ 100+ Train Suspension U-Bolt Kit?

Material: Nodular Iron/Ductile Iron/Gray/Gray Iron/Steel; Surface: Trimming, Deburring, Polishing, Shot Blasting; Sand Core Type: Resin Sand Core; Process: Squeeze Casting / Liquid Forging; Main Product: Railcar Grab U-Bolt Uncoupler Lever Brakeshoe Key; Squeeze Casting: A356+T6, A356.2+T6, AlSi9Mg+T6, Zl108+T6, AlTi-Alloy+T6. The full specification table and any technical parameter tables are listed on this page.

Can this product be customized (OEM)?

Listed configurations include material, surface and package size. 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

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US$7.20 – 21.60MOQ 10 piecesGet a quote WA