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Bolts › U-Bolts & J-Bolts

Stainless Steel SS304/SS316/DIN3570 Square U Type Bolt with Nuts

Updated 2026-11-04 · Markdown version

Model no. DIN3570

US$0.0121,000–99,999 pieces

US$0.0012100,000–999,999 pieces

US$0.00011,000,000+ pieces

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

Head Style: Round
Standard: DIN, ANSI, GB
Grade: 12.9
Finish: Polishing
Package Size: 28.00cm * 25.00cm * 13.50cm
Material: Stainless Steel
SIZE: M6 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M30 M33 M36 M39 M42 M45 M48 M52 M56 M60 M64 M68 M72 M73 M80 M85 M90 M100 etc.

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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.	DIN3570
Connection	Common Bolt
Head Style	Round
Standard	DIN, ANSI, GB
Grade	12.9
Application	Machinery, Chemical Industry, Environmental, Building
Finish	Polishing
MOQ	1000PCS
Certification	ISO9001
Delivery Time	25 Days
Durability	Enhanced
Sample	Free
Transport Package	25kg/Carton+Pallet
Specification	5/8" to 1-1/4"
Origin	Ningbo, Zhejiang
HS Code	7318159001
Production Capacity	2500 Tons/Month
Package Size	28.00cm * 25.00cm * 13.50cm
Package Gross Weight	22.500kg
Customization	Available
Material	Stainless Steel
Type	Ubolt
Shipping Cost	Contact the supplier about freight and estimated delivery time.
SIZE	M6 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M30 M33 M36 M39 M42 M45 M48 M52 M56 M60 M64 M68 M72 M73 M80 M85 M90 M100 etc.
Finsh	PLAIN, ZP, YZP, HDG, Dacromet, Black Oxide ,Cr3+ , Mechanical Galvanizing, etc.
Our main products are fasteners	bolts, screws, rods, nuts, washers, anchors and rivets.
Keyword	china supplies,OEM/ODM,Manufacturer,screw,bolt,hardware.bolt and nut,fastener,carbon steel,fange nut.hexagonal nut.stainless steel nut,zlfastener,sinofastener
Category	U-Bolts & J-Bolts

Technical parameters

Product name	U bolts
Material:	Carbon steel SAE1008 / C1010 / C1020 / 10B21 / 20MnTib / 40Cr / 35Croma / Q355 etc.
Standard:	GB / DIN / ASME/ANSI / BSW etc.
Grade:	Gr4 / Gr6 / Gr8 / Gr10 / Gr12 / Class2 / Class5 / Class8 / 2H Heavy Nut etc.
SIZE :	M6 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M30 M33 M36 M39 M42 M45 M48 M52 M56 M60 M64 M68 M72 M73 M80 M85 M90 M100 etc.
1/4" 5/16" 3/8" 7/16" 1/2" 9/16'' 5/8'' 3/4'' 7/8'' 1'' 1-1/4'' 1-3/8'' 1-1/2'' etc.
Finsh:	PLAIN, ZP, YZP, HDG, Dacromet, Black Oxide ,Cr3+ , Mechanical Galvanizing, etc.

Description

Stainless Steel SS304/SS316/DIN3570 Square U Type Bolt with Nuts is part of our u-bolts & j-bolts range (Bolts).

Key details

Type: Ubolt
Standard: DIN, ANSI, GB
Material: Stainless Steel
Grade: 12.9
Head Style: Round
Finish: Polishing
Connection: Common Bolt
Application: Machinery, Chemical Industry, Environmental, Building

Available configurations include head style, standard, grade, finish and package size. 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$0.0001 – 0.012 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 Stainless Steel SS304/SS316/DIN3570 Square U Type Bolt with Nuts?

The listed minimum order is 1,000 pieces, at US$0.0001 – 0.012 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$0.012 for 1,000–99,999 pieces; US$0.0012 for 100,000–999,999 pieces; US$0.0001 for 1,000,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote.

What are the main specifications of Stainless Steel SS304/SS316/DIN3570 Square U Type Bolt with Nuts?

Type: Ubolt; Standard: DIN, ANSI, GB; Material: Stainless Steel; Grade: 12.9; Head Style: Round; Finish: Polishing. 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 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 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 →

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US$0.0001 – 0.012MOQ 1,000 piecesGet a quote WA