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

Nuts › Square Nuts

Precise Stainless Steel Square Nut DIN557

Updated 2026-11-04 · Markdown version

Model no. DIN557

US$0.30 / piece

MOQ 500 pieces · Final price confirmed in your quote

Material: Carbon Steel
Head Style: Hexagonal
Standard: DIN, ANSI, GB, JIS, BSW
Grade: 2,5,8,10
Size: M4-M100
Surface Treament: Black, Zinc Plated, Zinc (Yellow) Plated, H.D.G. ,Dacromet,etc.
Packing: 25 kgs per box, 36 box per pallet, 900 kgs per pallet

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	Hexagon Head
Model NO.	DIN557
Connection	Common Bolt
Head Style	Hexagonal
Standard	DIN, ANSI, GB, JIS, BSW
Grade	2,5,8,10
Transport Package	25kgs Per Box,36 Boxes Per Pallet,900kgs Per Palle
Specification	M4-M100
Origin	Ningbo, China
HS Code	7318160000
Production Capacity	1300ton/Month
Size	M4-M100
Surface Treament	Black, Zinc Plated, Zinc (Yellow) Plated, H.D.G. ,Dacromet,etc.
Packing	25 kgs per box, 36 box per pallet, 900 kgs per pallet
Best Competitive Advantages	1.OEM Accepted
Category	Square Nuts

Technical parameters

Standard:	Stainless Steel Square Nut DIN557
Grade:	2,5,8,10
Size:	M4-M100
Surface Treament:	Black, Zinc Plated, Zinc (Yellow) Plated, H.D.G. ,Dacromet,etc.
Material:	Carbon Steel, Alloy Steel, Stainless Steel,etc.
Packing:	25 kgs per box, 36 box per pallet, 900 kgs per pallet

Description

Precise Stainless Steel Square Nut DIN557 is part of our square nuts range (Nuts).

Key details

Type: Hexagon Head
Standard: DIN, ANSI, GB, JIS, BSW
Material: Carbon Steel
Grade: 2,5,8,10
Size: M4-M100
Head Style: Hexagonal
Connection: Common Bolt
Packing: 25 kgs per box, 36 box per pallet, 900 kgs per pallet

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

Ordering through Engineering Hardware & Fasteners

Minimum order is 500 pieces at US$0.30 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 Precise Stainless Steel Square Nut DIN557?

The listed minimum order is 500 pieces, at US$0.30 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 Precise Stainless Steel Square Nut DIN557?

Type: Hexagon Head; Standard: DIN, ANSI, GB, JIS, BSW; Material: Carbon Steel; Grade: 2,5,8,10; Size: M4-M100; Head Style: Hexagonal. 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 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 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$0.30MOQ 500 piecesGet a quote WA