600 Pieces M3 Button Head Socket Cap Screws Nuts Washers Set Black

600 Pieces M3 Button Head Socket Cap Screws Nuts Washers Set Black

• 【Complete 7-Size Assortment】 No more mid-project scavenger hunts! This kit includes 600 pcs of M3 button head socket cap screws in 7 practical lengths: 5mm, 6mm, 8mm, 10mm, 12mm, 16mm, and 20mm. Each size comes with matching hex nuts, lock washers, and flat washers, ensuring you always have the exact hardware on hand for any repair or build.
• 【Built to Last – 10.9 Grade Alloy Steel】 Stop bending cheap screws! Crafted from high-strength 10.9 grade alloy steel with a premium black oxide coating, these fasteners offer exceptional hardness and shear strength. The anti-rust and anti-corrosion surface ensures they stay reliable even in humid workshop environments, giving you a rigid, long-lasting hold.
• 【Precision Hex Drive】 Say goodbye to rounded-off screw heads. The recessed hexagon socket is precisely machined for a snug fit with your hex wrench (Allen key). This design maximizes torque transfer so you can tighten or remove them effortlessly without slipping, saving you time and frustration on every job.
• 【Versatile Use Across Industries】 From 3D printers and RC drones to electronics enclosures, household appliances, and automotive trim, these M3 screws are the universal standard for precision machinery. Ideal for instruments, communication devices, lighting fixtures, and even toy repairs – a must-have staple for any maker, engineer, or repair technician.
• 【Smart Organized Storage Box】 Forget mixed-up hardware bags! All 600 pieces come in a durable, clear divided case with a labeled grid for each size. You can instantly identify and grab the screw you need without rummaging. Keep your workspace tidy and your projects moving efficiently.