Best M12 Flat Washers in 2026

Flat washer provides a bearing surface for fastener load distribution or acts as a spacer

Grade 8 steel is stronger than grade 5 steel and often used in applications where strength is the primary concern

Zinc yellow-chromate plating offers good corrosion resistance

Flat washer provides a bearing surface for fastener load distribution or acts as a spacer

Steel is often used in applications where strength is the primary consideration

Zinc plating resists corrosion and has a reflective appearance

Quality Type 316 (Marine Grade) Stainless Steel Common Flat Washers

【800 Pcs Washers for Screws】800 Pcs stainless steel flat washers for screws bolts, 9 different sizes M2（210 Pcs) M2.5（200 Pcs） M3（100 Pcs） M4（100 Pcs） M5（70 Pcs）M6（40 Pcs ） M8（50 Pcs ） M10（20 Pcs ） M12（10 Pcs ），Total：800 pcs / 9 different sizes fender washers assortment set kit can meet your different needs.

【Top 304 Stainless Steel】Our assorted hardware Lock metal washers, is made of top 304 stainless steel which has the advantages of high hardness, well wear-resistance, corrosion resistance and rust resistance. Which can ensure long time using even in bad environment like high temperature, cold weather, and high humidity areas.

【Widely Application】Fender washers assortment set kit, perfect for interior decoration, outdoor construction, electrical maintenance and furniture repair, The flat washers could be used for fixing bolts with smaller diameter than the hole of washers.

【Size】--inner diameter 0.464-0.484inch, outside diameter 0.915-0.937 inch, thickness 0.051-0.080

【Made of Stainless】 --- Completely and infinitely recyclable, stainless steel is the “green material” par excellence. good corrosion resistance, extremely hygienic, easy to maintain, highly durable and offers a wide variety of aspects.

【Widely Applications】 --- Also known as plain washers, their purpose is to distribute the fastener's load while reducing heat and friction during the tightening process. These general use flat washers are positioned under the head of a bolt or nut in order to provide a smooth bearing surface and distribute the fastener load over a wider area.

√【Kindroufly Combination】: M2 (200 pieces), M2.5 (200 pieces), M3 (100 pieces), M4 (100 pieces), M5 (72 pieces), M6 (50 pieces), M8 (50 pieces), M10 (20 pieces), M12 (8 pieces), total 9 sizes 800pieces, different sizes and enough quantities can meet your different daily needs.

√【High Quality Stainless】: Kindroufly fender washers are made of 304 stainless steel, which have smooth surface, high strength, not easy to deform, corrosion resistance and rust resistance, can ensure a long time using in bad environment like high temperature, cold weather, and high humidity areas.

√【Fender Washers Function】: Flat washers are commonly used to prevent nuts from loosening. Our flat washers are well made, with smooth and shiny surface, highly compatible with screws, nuts and bolts of same sizes and feature solid bearing surface to prevent nut/bolt head from tearing through material.

Material: Our Sealing Gasket Is Made Of 304 Stainless Steel And Epdm Rubber, Durable And Long Life With Good Rust Resistance, You Do Not Have To Feel Frustrated By Rust

Package Quantity: Our Products Are Strictly Controlled By The Quantity Of Each Package, And Packed In A Strong And Durable Box, You Do Not Have To Worry About Receiving A Broken Package And The Number Of Packages Does Not Match The Actual

Features: The Sealing Washer Is Rubber On One Side And Metal On The Other Side Of The Washer. Suitable For Use In Metal Plates, The Rubber Helps To Solve The Problem Of Vibration Noise, The Gasket Helps To Improve The Friction Of The Screw To Enhance The Sturdiness, They Are Good Helpers For Your Work.

WHAT YOU GET: 100 stainless steel #8x3/8" Spring Lock Washers ideal for use in sheet metal and wet environments with very high form corrosion resistance in 304 material

304 MATERIAL: Our Spring Lock Washers are made of 304 stainless steel, which is longer lasting than other hardware on the market and will last longer in harsh environments such as high temperature, low temperature and high humidity.

WIDELY USED: Our Spring Lock Washers can be used to fix bolts with diameter smaller than the hole of the washer, suitable for general industry such as indoor decoration, outdoor construction, electrical repair and furniture repair.

UNCOMPROMISED QUALITY - While ordinary steel flat washers are of poor quality and fail to abide by their functionality; our premium quality stainless steel washers are made of 304 stainless steel giving them a high tensile strength making it durable for rough and tough conditions

INDOOR AND OUTDOOR REPAIRING - HARDLAD’s flat washer assortment kit have a high-grade manufacturing and are engineered to withstand critical temperatures. These flat washer don't easily loose their properties and shape. Hence a best fit for your personal or professional projects

WE SURPASS PERFECTION- Gone are the days of baring hefty charges just to fix a lose screw or to tighten a hose. With our easy to use washer kit, you will be able to DIY any machine, furniture, sanitary, automotive work etc at anytime.

WHAT YOU GET: 100 stainless steel 1/4"x1 flat pads ideal for use in sheet metal and wet environments with very high form corrosion resistance in 304 material

304 MATERIAL: Our pads are made of 304 stainless steel, which is longer lasting than other hardware on the market and will last longer in harsh environments such as high temperature, low temperature and high humidity.

WIDELY USED: Our flat pad can be used to fix bolts with diameter smaller than the hole of the washer, suitable for general industry such as indoor decoration, outdoor construction, electrical repair and furniture repair.