Best M4 Hardware Washers in 2026
Daisy
Last Updated: Jul 17, 2026
Daisy
Last Updated: Jul 17, 2026
* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Ylyl Direct | 9.68 | ✅ | ✅ | ✅ |
【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.
【Easy Storage】All stainless steel flat washers for screws bolts are packed in a sturdy Transparent Plastic case, Clear and Easy to Use Storage Box Use 9 grids to distinguish 9 sizes, with specification label, for your use simple and clear every time.
【SATISFACTION GUARANTEED】Our team is committed to providing every customer with good assorted hardware lock metal washers and satisfactory service. If there are any problems with our fender washers assortment set kit, contact us and we would be very happy to solve your problems. Be sure to Add to Cart.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| VIGRUE-KING OF SCREW | 9.93 | ✅ | ✅ | ✅ |
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
High quality 304 stainless steel to ensure life-time use, these quality assortment washers for home, automotive, and shop 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
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| VIGRUE-KING OF SCREW | 9.93 | ✅ | ✅ | ✅ |
★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.
★Functions: Flat washers are mainly used to reduce pressure and friction, prevent leakage, isolate, loosening or disperse pressure. Black Zinc Plated Alloy with rust resistant galvanized finish to ensure life-time 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.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| HELIFOUNER | 9.89 | ✅ | ✅ | ✅ |
【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.
【Weak Magnetic】The magnetic properties of 304 stainless steel due to the structure transformation reasons are not at the same level as the magnetic properties of stainless steel of other materials, which means that the magnetic properties of 304 steel always show weak magnetic properties.
【Wide Applications】Highly compatible with screws, nuts and bolts of same sizes and feature solid bearing surface to prevent nut/bolt head from tearing through material. Designed to spread the load of a screwed fastening and prevent loosening in industrial, shop, decks and fence building, automotive and home appliances.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Socell Shop | 8.51 | ✅ | ✅ | ✅ |
➤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
➤These metal washers and stainless steel washers are made by Socell have good quality and high durability.The flat washers can effectively disperse the pressure generated by the fastener head,by increasing the contact area, parts can be protected from damage,and prevent loose connection between fasteners.
➤If you are not satisfied with the product can be returned,please contact us by email,we will provide you with the best quality after-sales service.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Faiq Ahmed | 5.67 | ✅ | ✅ | ✅ |
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.
EVERY HOUSEHOLDS NEED - Make our assorted flat washers assortment a staple in hardware collection. They are not only rustproof but also resistant to oxidation and corrosion making them long lasting. An ideal fit for all homes every day needs. Moreover, you can use these washers for crafting purposes also.
MULTIPLE SIZES FOR ANY SCREW - Our best rated washers come in a solid plastic compartment box. Organized 800 pieces in 9 sizes ranging from small washers to big washers. Each set has M12 washer (10pcs), M10 washer (16pcs), M8 washer (35pcs), M6 washer (55pcs), M5 washer (105pcs), M4 washer (110pcs), M3 washer, (130pcs), M2.5 washer (130pcs), M2 washer (209pcs)
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Vigrue | 2 |
| Hardlad | 1 |
| Helifouner | 1 |
| Socell | 1 |
| Ylyl | 1 |
We've carried out a comprehensive analysis of 3,469 reviews on hardware washers, using our selection criteria to identify the best options in the fasteners. Our findings reveal that most customers typically select hardware washers priced around $11.66, with top brands including wensilon, hardlad, helifouner, ylyl, fullerkreg, small parts, brexxty, vigrue and fastener tree and glarks
Our team of expert editors reviewed these high-quality items and handpicked the top 6 hardware washers for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the fasteners category. These include wensilong, faiq ahmed, helifouner, ylyl direct, fullerkreg, amazon.com, product houze, vigrue-king of screw and dqi supplies and connectors & wire & tools .
We are dedicated to assisting our users in finding the right washers Products based on their needs, saving them considerable time when choosing which hardware washers to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.
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