Standard & made-to-drawing parts
Checked before shipping
Air, sea & express delivery

DIN557 High Strength Stainless Steel Thread M5 M6 M8 Square Screw Nut for Construction

Updated 2026-11-04 · Markdown version

Model no. DIN557

US$1.241,000–4,999 pieces

US$0.835,000–9,999 pieces

US$0.2810,000+ pieces

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

Material: Carbon Steel
Head Style: Square
Standard: DIN, GB
Grade: 4/6/8/10/12
Color: Customized Colors
Thread Coverage: Fully Threaded
Surface Treatment: Plain.Black.Zinc Plate. HDG
Thread Direction: Right Hand

Get a quote WhatsApp

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	Carbon Steel
Type	Square Head
Model NO.	DIN557
Connection	Common Bolt
Head Style	Square
Standard	DIN, GB
Grade	4/6/8/10/12
Product Name	Square Nut
Color	Customized Colors
Thread Coverage	Fully Threaded
OEM	Support
Surface Treatment	Plain.Black.Zinc Plate. HDG
Thread Direction	Right Hand
Quality Control	100% Quality Insepected
Price	Low Price
Transportation	Convenient
Term of Validity	1 Year
Service	Good Service
Application	Building Construction,Industry,Connection, Fasteni
Transport Package	Carton
Specification	M3-M16
Origin	China Zhejiang
Production Capacity	10000tons/Year
Package Size	40.00cm * 30.00cm * 30.00cm
Package Gross Weight	20.000kg
Category	Other Machine & Custom Screws

Technical parameters

Name	Square Nuts
Size	M3--M16
Material	Carbon Steel, stainless steel, brass, etc
Finish	Plain, Black, Zinc, Yellow Zinc, HDG, Dacromet, etc.
Standards	DIN557, ASME/ANSI B 18.2.2, JIS B 1163, etc.
Class	Grade 4-12

Description

DIN557 High Strength Stainless Steel Thread M5 M6 M8 Square Screw Nut for Construction is part of our other machine & custom screws range (Screws).

Key details

Type: Square Head
Standard: DIN, GB
Material: Carbon Steel
Grade: 4/6/8/10/12
Head Style: Square
Surface Treatment: Plain.Black.Zinc Plate. HDG
Connection: Common Bolt
Application: Building Construction,Industry,Connection, Fasteni

Available configurations include material, head style, standard, grade and color. 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$0.28 – 1.24 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 DIN557 High Strength Stainless Steel Thread M5 M6 M8 Square Screw Nut for Construction?

The listed minimum order is 1,000 pieces, at US$0.28 – 1.24 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$1.24 for 1,000–4,999 pieces; US$0.83 for 5,000–9,999 pieces; US$0.28 for 10,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote.

What are the main specifications of DIN557 High Strength Stainless Steel Thread M5 M6 M8 Square Screw Nut for Construction?

Type: Square Head; Standard: DIN, GB; Material: Carbon Steel; Grade: 4/6/8/10/12; Head Style: Square; Surface Treatment: Plain.Black.Zinc Plate. HDG. 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 color. 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 other machine & custom screws are available?

The Other Machine & Custom Screws category lists 14,058 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/screws/other-machine-custom-screws/

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$0.28 – 1.24MOQ 1,000 piecesGet a quote WA