Best M4 Hardware Washers in 2026

【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.

Material: 304 Stainless Steel, corrosion resistant

Size: M2 M2.5 M3 M4 M5 M6 M8 M10 M12

Quantity: It contains 684pcs/9 Sizes of the most commonly used Stainless Steel washers

★Material: Made of alloy steel, good hardness, low temperature strength and corrosion resistant.

★Size: 9 Sizes of the most commonly used flat washers, M2 M2.5 M3 M4 M5 M6 M8 M10 M12.

★Quantity: It contains 9 sizes totally 684pcs, each size comes in a little poly bag organized in a little compartmentalized box. Perfect for having around the house and doing small projects.

【Sizes】M2 M2.5 M3 M4 M5 M6 M8 M10 M12, total 600 pieces/9 sizes of the most commonly used stainless steel washers in a plastic case, different size can satisfy your different needs.

【Design】Flat washers are designed for electrical connections on household and commercial appliances, automotive and marine uses in which the power source has a threaded/bolt-type connection.

【Material】304Stainless Steel, stainless steel material which have good corrosion resistance in bad environment like high temperature, cold weather, and high humidity areas. They have superior rust resistance and excellent oxidation resistance, which can ensure long time using.

★『Product Type』: High quality large penny fender washers assortment set.

★『High Quality Meterial』: All the flat washers are made of 304 stainless steel, which offers good corrosion resistance in bad environment like high temperature, cold weather, and high humidity areas. They have superior rust resistance and the excellent of oxidation resistance.

★『Easy to Use』: They are very easy to install, the washer's surface are smooth can reduces friction between the fasteners, prevents leakage, isolates, prevents loosening or dispersion pressure.

❤ 1, HIGH QUALITY MATERIAL ---- High quality pure copper material, fine workmanship, smooth surface, no burr, durable, long service life, not easy to damage, the material itself luster can be preserved for 10 years and 20 years as new.

❤ 2, WIDE APPLICATION ---- Perfect for Electrical Connections on Household and Commercial Appliances, Automotive and Marine Uses in Which the Power Source Has a Threaded / Bolt-type Connection

❤ 3, EASY TO USE ---- Sturdy and durable, great corrosion resistance for outside applications, easy to install. Flat washers are used to support and spread the load across the baring area of the bolt and nut to prevent pull through

√【Kindroufly Combination】: M5 M6 M8 M10 M12 M14 M16 M20, total 11 sizes 320 pieces copper sealing washers, different sizes and enough quantities can meet your different daily needs.

√【High Quality Copper】: Kindroufly copper washers are high quality copper material, which have smooth surface, wear resistance, corrosion resistance and rust resistance, can ensure a long time using in bad environment like high temperature, cold weather, and high humidity areas.

√【Copper Washers Function】: High conductivity, corrosion resistant copper material provides a tighter seal and greater heat endurance than steel and rubber washers, and play the role of protection and stability Our copper washers are well made, with smooth and shiny surface, highly compatible with screws, nuts and bolts of same sizes.

➤SOCELL stainless washers include :M2 M2.5 M3 M4 M5 M6 M8 M10 M12 flat washers.These sizes are often needed.

➤SOCELL stainless steel washers for screws contain 700pieces flat washers and a storage box for quick and easy use.

➤Widely Application: Perfect for electrical connections on household and commercial appliances, automotive and marine uses in which the power source has a threaded/bolt-type connection

MATERIAL: Assorted washers are manufactured with 304 stainless steel, washer set has the benefits of corrosion resistance, and good wear resistance, and a high level of hardness, which can ensure durability, even in worst weather conditions like rain, humidity, and high temperature

DIMENSIONS: Stainless steel washers comes in 15 different sizes: M3(15x0.8mm), M4(20x1.2mm), M4(25x1.5mm), M5(20x1.2mm), M5(25x1.4mm), M6(20x1.5mm), M6(25x1.5mm), M6(30x1.5mm), M8(20x1.4mm), M8(25x1.5mm), M8(30x1.5mm), M10(20x1.5mm), M10(25x1.5mm), M10(30x1.5mm), M12(24x1.5mm)

QUANTITY: Washers for bolts come in 15 sizes and 225 pieces overall, & each stainless-steel finish washers have a different purpose, and all products require different sizes of the washer. It comes with zip lock to prevent mixing up the sizes in a transparent box

Note Size(Appr.): Metric flat washer assortment sets. M6 stands for the inside diameter of washer, means 6mm (1mm=.039 inch) in I.D. ALL washers are SAME thickness(1.5mm), and All washers with a wider outside diameter(25mm) Note Inside Diameter is the hole diameter, outside diameter is the round diameter.

Fast and Easy Use: Crush washers are round and flat with hole. Note the space between the lock nut and nut (1.5mm Thickness). All screws depends on the inside diameter. that means M4 washer fit with M4 screws/bolt shanks.

Multi-purpose Application: Commonly used in household. with threaded bolts, screws, nuts and flat finishing washers to tie together to prevent through. Build and repair furniture, digital products. and so on.

DIMENSIONS: Inside Diameter: 6mm(0.24"), Outside Diameter:10mm(0.39"), Pack of 100, 304 stainless steel.

STAINLESS STEEL: Made from stainless steel for superior corrosion resistance, there're strong and not easy to deform or slip.

LOOSENING PREVENTION: The spring washer offers axial flexibility that's intended to protect fastened assemblies against loosening from vibration.

It is made of solid zinc alloy, which is durable and has a long service life. Corrosion, rust and oxidation resistance. Ideal for outdoor and indoor use.

These half moon nut washers are widely used to connect furniture or wooden railings.

Easy to install, you can use nuts to fix crescent shaped parts to furniture. The bolt can be inserted, and the half moon washer has good locking effect.

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.

Flat washer are used to distribute loads of threaded bolts, screws and nuts, provide a smooth-bearing surface.

Flat washers are well made, with smooth and shiny surface, which are mainly used to reduce pressure and friction, prevent leakage, isolate, loosening or disperse pressure. Suitable for indoor and outdoor usage.

Aluminium Sealing Ring Metal Gasket Crush Washer Flat Seal Ring Meson Pad