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Screws › Button, Pan & Round-Head Screws

Custom Fastener Flat Plain Washer /Spring Washer /External Internal Lock/ Wave Washer/Aluminum Stainless Steel

Updated 2026-11-04 · Markdown version

Model no. m3-m20

US$48.00 – 72.00 / piece

MOQ 1 piece · Final price confirmed in your quote

Material: Stainless Steel
Head Style: Round
Standard: DIN, GB, ANSI, BSW, JIS
Grade: 8.8
C. Raw material warehouse: Our screws are made with first quality materials,all our suppliers carry out strict quality controls on the materials in order to get the best quality performance as required by our internal procedures.

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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	Pan Head
Model NO.	m3-m20
Groove	Cross
Connection	Common Bolt
Head Style	Round
Standard	DIN, GB, ANSI, BSW, JIS
Grade	8.8
Transport Package	Paper Box
Specification	stainless steel
Origin	Dongguan
HS Code	8207300090
Production Capacity	1000PCE
C. Raw material warehouse	Our screws are made with first quality materials,all our suppliers carry out strict quality controls on the materials in order to get the best quality performance as required by our internal procedures.
ISO9001	2008
please don't hesitate to contact with me as below	Helen
Category	Button, Pan & Round-Head Screws

Technical parameters

Raw Materials	1.StainlessSteel:SS201,202,303,304,316,321,410,420,etc.
2.Steel:C45(K1045),C46(K1046),C20,etc.
3.Brass:C36000(C26800),C37700(HPb59),C3850(HPb58),C27200CuZn37),C28000(CuZn40),etc.
4.Bronze:C51000,C52100,C54400,etc.
5.Iron:1213,12L14,1215,etc.
6.Aluminum:Al6061, Al6063,etc.
7.Carbonsteel:C1006,C1010,C1018,C1022,C1035K, C1045,etc.
8.Alloy steel:SCM435,10B21,etc.
Application	Electronic equipment,Machinery,Buildings,Sanitary fittings,Sports equipment,etc.
Size scope	M3-M12 * 5-150mmL
Standard	ISO,DIN,AS/NZS,GB,ANSI,BSW,DIN and special standard according to the drawing.
Grade	Class 4.8, Class 6.8, Class 8.8, Class 10.9, Class 12.9,etc.
Surface finishing	Plain,polishing,zinc plated, Ni-plated,Tin-plated,hot-dip galvanized,black anodize,black lacquer,copper red,Chromate,Chrome plated,etc.
Heat treatment	Tempering,Hardening,Spheroidizing,Stress Relieving.
Sample finished time	Within 7 days with available mold,for free.
Bulk delivery time	10-15 working days or TBD based on the specific order quantities.
Production flow	Heading→washer assembly→Threading→Secondary machine→heat treatment→plating→Anti-slipping→Baking→QA Inspection&sorting→Packing→Shipping.

Description

Custom Fastener Flat Plain Washer /Spring Washer /External Internal Lock/ Wave Washer/Aluminum Stainless Steel is part of our button, pan & round-head screws range (Screws).

Key details

Type: Pan Head
Standard: DIN, GB, ANSI, BSW, JIS
Material: Stainless Steel
Grade: 8.8
Head Style: Round
Groove: Cross
Connection: Common Bolt
ISO9001: 2008

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

Ordering through Engineering Hardware & Fasteners

Minimum order is 1 piece at US$48.00 – 72.00 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 Custom Fastener Flat Plain Washer /Spring Washer /External Internal Lock/ Wave Washer/Aluminum Stainless Steel?

The listed minimum order is 1 piece, at US$48.00 – 72.00 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 Custom Fastener Flat Plain Washer /Spring Washer /External Internal Lock/ Wave Washer/Aluminum Stainless Steel?

Type: Pan Head; Standard: DIN, GB, ANSI, BSW, JIS; Material: Stainless Steel; Grade: 8.8; Head Style: Round; Groove: Cross. 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 c. raw material warehouse. 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 button, pan & round-head screws are available?

The Button, Pan & Round-Head Screws category lists 1,831 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/screws/button-pan-round-head-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 →

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US$48.00 – 72.00MOQ 1 pieceGet a quote WA