DIN 436 Metal Stamping Parts Flat Stainless Steel Square Washers Sizes M8 - M55

DIN 436 Metal Stamping Parts Flat Stainless Steel Square Washers Sizes M8 - M55

Stamped square washer with flat profile and blank hole in the middle for threaded screw or bolt assembly , the width for each side of square washer are same , usually , the width of square washer is more bigger than head diameter of screw or bolt , square washer provides more frictions when it is installed on material , this lets screw or bolt to secure material well .

Standard sizes for square washers are from 9 to 58 ( hole diameter ) which available for thread M8 to M55 as following shows , we are capable of manufacturing more smaller and bigger customized sizes .

Stamped square washers normally are made of carbon steel with grade 4.8 that suitable for grade 4.8 to 8.8 screws or bolts .

Tensile strength(σb/MPa ): 410

Density g/cm^3 : 7.85

Yiled strength N/mm2 : 365

Hardness HV : 150

Reduction of area Z ( % ) : 41

Stamped square washers are available for different finish to apply for various applications .

Zinc

The most popular plating for the most products

Bright and smooth

Resistant corrosion

Nickel

The film thickness is 1～3μm , it improves brightness and wear resistance

Polishing

Reduce roughness of parts and improve brightness .

Tin

With film thickness 0.13～1.27μm , tin finish with bright surface and good ductility ,corrosion resistance ,lower melting point ,eco-friendly features .

Brass

Usually, 5gm～8gm finish coating thickness and with good dispersibility ,Bright appearance .

Dacromet

This finish is grey color with High corrosion resistance , No hydrogen embrittlement ,Heat resistance ,Easy to plated more ,eco-friendly etc charictersitics and the film thickness is 4-8μm .

Chrome

Chrome finish is silver white color and the thickness of film is 0．25～0．5μm normally . chrome finish has many practical Features

• Bright appearance
• Wear resistance
• Corrosion resistance
• Hard plating film
• Heat resistance

Stamped square washers are packed in boxes for convenient shipment , customized packages are available .

With many years reputation in hardware filed , VEDALI HARDWARE CO., LTD has entered hardware filed and gained much development in these years , we have over 100 employees and 20 engineers on researching and development , and several branches that are specialized in different hardware for vast demands .

Our product range covers Fasteners ( Screws , Bolts , Nuts , Rivets , Washers , Pins ) , Stamping Parts , Machined Parts , Plastic Injection Molded Parts Which are made of or from different materials for every field in industry , Agriculture and Service . We own advanced process machines and experienced skilled workers to ensure products are manufactured in high quality . We are able to proceed special designs for new projects and provide good solutions to difficult problems during operations , and OEM services are available for us as well .

We carry out ISO management system for our normal managements and put more good management styles based on hommization , efficiency , technicalization according to our actual situations . Our products are sold to the most countries or areas in the world and serve many fields , welcome you to send enquiries to us and looking forward to cooperation .