M3 M4 Screw Set With Nuts Washers And Wrenches 304 Stainless Steel Button Head Hex Socket Cap Screws M3 And M4 Sizes 4mm To 25mm 405 Piece DIY Ready Kit For Projects Robotics And Machinery

Premium M3 and M4 stainless steel screw kit for DIY
✔️ 304 stainless steel hex socket screws in M3/M4 sizes from 4mm to 25mm, with nuts, washers, wrenches; 405 pieces total

This screw set is a handy assortment of fasteners perfect for DIY projects, robotics assembly, and machinery repairs, commonly used by hobbyists and professionals to secure parts in electronics, 3D printers, and household devices.

✅ Made from durable 304 stainless steel for rust and corrosion resistance.
✅ Includes M3 screws in 4mm to 20mm sizes and M4 in 5mm to 25mm, plus matching nuts, washers, and hex wrenches.
✅ Total of 405 pieces for versatile small-scale builds and repairs.
✅ Ideal for quick fixes in toys, appliances, and precision machinery setups.

💡 Why use stainless steel screws in everyday mechanical projects?
Stainless steel fasteners provide reliable performance for various applications.
- They resist rust and corrosion better than standard metals in tough conditions
- Offer strong tensile strength to handle vibrations and loads effectively
- Allow for easy installation and removal without damaging threads
- Help extend the lifespan of assemblies in outdoor or humid environments