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Factory Bulk Supply Galvanized Finish DIN557 Square Nut for Industrial

Updated 2026-11-04 · Markdown version

Model no. DIN557

US$0.135,000–9,999 pieces

US$0.1210,000–19,999 pieces

US$0.1020,000–49,999 pieces

US$0.037250,000+ pieces

MOQ 5,000 pieces · Final price confirmed in your quote

Material: Stainless Steel
Head Style: Square
Standard: DIN, ANSI, GB, JIS
Grade: 4.8
Thread: Corase and Fine
Package Size: 27.50cm * 25.00cm * 17.00cm
Comprehensive Customer Support: From initial technical consultations and detailed order tracking to dedicated after-sales service, our professional team provides one-on-one, end-to-end support.
Packing: 3 inner boxes per master carton (Max 20 kg/carton)

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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	Stainless Steel
Type	Square Head
Model NO.	DIN557
Connection	Common Bolt
Head Style	Square
Standard	DIN, ANSI, GB, JIS
Grade	4.8
Certification	ISO, RoHS, CE
Delivery	Sea Freight, Air, Train, Express
Service	Support Customized Service
Samples	Free If It Is Available
Thread	Corase and Fine
Inspection	Optical Screening Instrument
Delivery Time	10-15 Working Days
Transport Package	Plastic Bag, Boxes and Cartons, Pallets, Customize
Specification	M3-M12
Origin	China
HS Code	7318160000
Production Capacity	2000000pieces/Year
Package Size	27.50cm * 25.00cm * 17.00cm
Package Gross Weight	0.500kg
Square Nut DIN557	1. U-bolt assemblies (widely used for pipe clamps, truck chassis, trailers)
Diversified Product Lines	We supply a comprehensive range of standard components as well as non-standard, custom-engineered fasteners. This allows us to flexibly respond to the unique technical requirements of diverse engineering, machinery manufacturing, and construction projects.
Stringent Quality Control System	From raw material inspection to final product dispatch, we implement rigorous quality monitoring throughout the entire manufacturing process to guarantee the exceptional delivery of every single batch.
Professional Cross-Border Services	Supported by a mature international trade team, we adeptly handle complex cross-border procurement and smooth international settlement processes, effectively eliminating communication and financial hurdles for our overseas clients.
Efficient Global Logistics	We have established and optimized a highly reliable supply chain network. This ensures that goods are delivered safely and punctually to any destination worldwide, safeguarding our clients' production schedules from unexpected delays.
Comprehensive Customer Support	From initial technical consultations and detailed order tracking to dedicated after-sales service, our professional team provides one-on-one, end-to-end support.
Packing	3 inner boxes per master carton (Max 20 kg/carton)
Shipping Method	We offer flexible shipping options to meet your budget and timeline, including Ocean Freight (FCL/LCL), Air Freight, Rail Transport, and International Express (DHL/FedEx/UPS).
Answer	Small orders can be supported if the product is in stock.
Category	Square Nuts

Technical parameters

Standard	As per drawing
Size	M3-M12
Material	Stainless Steel, steel, Aluminum, brass, etc.
Plating	Zinc, Dacromet, Geomet, Ruspert, HDG, Nickel, etc.
Note	Free samples but freight cost is paid by customers(when sample is in stock)

Description

Factory Bulk Supply Galvanized Finish DIN557 Square Nut for Industrial is part of our square nuts range (Nuts).

Key details

Type: Square Head
Standard: DIN, ANSI, GB, JIS
Material: Stainless Steel
Grade: 4.8
Thread: Corase and Fine
Head Style: Square
Connection: Common Bolt
Certification: ISO, RoHS, CE

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

Ordering through Engineering Hardware & Fasteners

Minimum order is 5,000 pieces at US$0.0372 – 0.13 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 Factory Bulk Supply Galvanized Finish DIN557 Square Nut for Industrial?

The listed minimum order is 5,000 pieces, at US$0.0372 – 0.13 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$0.13 for 5,000–9,999 pieces; US$0.12 for 10,000–19,999 pieces; US$0.10 for 20,000–49,999 pieces; US$0.0372 for 50,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote.

What are the main specifications of Factory Bulk Supply Galvanized Finish DIN557 Square Nut for Industrial?

Type: Square Head; Standard: DIN, ANSI, GB, JIS; Material: Stainless Steel; Grade: 4.8; Thread: Corase and Fine; Head Style: Square. 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 thread. 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 square nuts are available?

The Square Nuts category lists 483 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/nuts/square-nuts/

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$0.0372 – 0.13MOQ 5,000 piecesGet a quote WA