Zerdans 434PCS M4 Machine Screws Assortment Kit, 304 Stainless Steel Phillips Pan Head Metric Screws with Nuts, Flat and Spring Washers, 7 Lengths (5mm-20mm) for 3D Printing, Household Repairs and DIY

• COMPLETE 4-IN-1 FASTENER SOLUTION：Stop searching for matching parts. This 434-piece kit includes M4 Phillips pan head screws, hex nuts, flat washers, and spring washers. Whether you're working on 3D printer maintenance or furniture repair, this "all-in-one" combo ensures a perfect fit and professional finish without extra hardware store runs.
• ENHANCED VIBRATION RESISTANCE：Worried about screws loosening over time? Unlike basic sets, we provide 118pcs of spring washers specifically designed to maintain tension and prevent loosening caused by vibration. Perfect for moving parts, electronics, and mechanical assemblies where security is critical.
• CORROSION RESISTANT 304 STAINLESS STEEL: Built to last in demanding environments. Every piece in this assortment is crafted from premium 304 stainless steel, offering excellent strength and superior corrosion resistance. Ideal for both indoor and outdoor projects, from kitchen fixtures to patio gear, ensuring your hardware stays clean and functional.
• 7 PRECISE METRIC SIZES (5MM-20MM): Cover all your small-scale fastening needs with lengths including 5mm, 6mm, 8mm, 10mm, 12mm, 16mm, and 20mm. Each screw features clean, deep-cut Phillips drives to prevent stripping, while the standard metric threads ensure smooth engagement with the included M4 hex nuts.
• UPGRADED SECURE STORAGE CASE: No more mixed-up hardware! Our kit arrives in a heavy-duty, partitioned storage box with reinforced latches. Each component—from the 5mm screws to the 118 flat washers—is neatly organized in its own compartment with a clear size chart, making identification instant and mess-free.

Tired of stopping your DIY project because you're missing a single washer or nut? The Zerdans 434PCS M4 Machine Screw Assortment Kit is designed to be the only M4 hardware set you'll ever need. We understand the frustration of finding the right screw but having no nut to secure it, or missing the spring washer needed to prevent it from rattling loose. That’s why we’ve bundled 135 screws across 7 lengths with 80 nuts and 236 washers into one comprehensive package. Engineered for Precision and Durability Every component is made from 304 Stainless Steel, ensuring your repairs withstand moisture and wear without the risk of rust. The deep Phillips drive head is precision-machined to grip your screwdriver firmly, solving the common competitor pain point of stripped screw heads. Whether you are a 3D printing enthusiast, a hobbyist, or just fixing a loose door handle, these screws deliver the reliability you demand. Why the Spring Washers Matter? Most kits skip the spring washers to save cost. Zerdans includes 118 of them. These act as a "lock," providing constant tension that keeps your assemblies tight even under heavy vibration—making this kit ideal for drones, printers, and appliances. Package Includes: Screws: M4x5, M4x6, M4x8, M4x10 (22pcs each); M4x12, M4x16, M4x20 (10pcs each) Hardware: 80x M4 Hex Nuts, 118x Flat Washers, 118x Spring Washers Organized in a sturdy, transparent case with clear labeling, the Zerdans kit ensures that the right part is always at your fingertips. Upgrade your toolbox with the quality and convenience of Zerdans.