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Premium Stainless Steel Square Flat Washers for Construction

Updated 2026-11-04 · Markdown version

Model no. Square Washer

US$0.012 – 0.084 / piece

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

Material: Carbon Steel
Surface Treatment: Black/Gray Phosphated, Zinc Plated
Length: 3-100
Material1: Duplex Stainless

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
Type	Spring Washer
Material	Carbon Steel
Model NO.	Square Washer
Combination Washer Structure	B Type
Combination Washer Packaging	All Inclusive
Spring Washer Type	Standard
Surface Treatment	Black/Gray Phosphated, Zinc Plated
Delivery	About 10 Days
Place of Origin	Hebei, China
Length	3-100
Stainless	S304 S316
Brass	59brass/62 Brass
Material1	Duplex Stainless
Transport Package	Bag/Carton/Wood Pallet
Specification	M5-M64
Origin	China
HS Code	73182100
Production Capacity	1000t/Month
Accepted Delivery Terms	FOB,CFR,CIF,EXW,FCA,DDU,Express Delivery;
Accepted Payment Currency	USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;
Spoken	English,Chinese,
Please provide the product you need parameters	1. You need the product name
Category	Spring & Split Lock Washers

Technical parameters

Finsh	Black/Zinc plated/hot dip galvanized
Head type	Hex head/Flat head/round head
Material	Stainless steel/carbon steel
Standard	DIN/AMSE/ISO/BS/IS/AS
Grade	4.8/6.8/8.8/10.9/12.9
Size	M3-M100
Delivery time	7-15 days
Package	Bag/carton/pallet or according to customer's requirement.

Description

Premium Stainless Steel Square Flat Washers for Construction is part of our spring & split lock washers range (Washers).

Key details

Type: Spring Washer
Material: Carbon Steel
Length: 3-100
Surface Treatment: Black/Gray Phosphated, Zinc Plated
Combination Washer Structure: B Type
Combination Washer Packaging: All Inclusive
Spring Washer Type: Standard
Place of Origin: Hebei, China

Available configurations include material, surface treatment, length and material1. 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$0.012 – 0.084 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 Premium Stainless Steel Square Flat Washers for Construction?

The listed minimum order is 1,000 pieces, at US$0.012 – 0.084 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 Premium Stainless Steel Square Flat Washers for Construction?

Type: Spring Washer; Material: Carbon Steel; Length: 3-100; Surface Treatment: Black/Gray Phosphated, Zinc Plated; Combination Washer Structure: B Type; Combination Washer Packaging: All Inclusive. 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 treatment, length and material1. 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 spring & split lock washers are available?

The Spring & Split Lock Washers category lists 1,593 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/washers/spring-split-lock-washers/

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$0.012 – 0.084MOQ 1,000 piecesGet a quote WA