500 Pcs Stainless Steel Nut and Bolt Assortment Kit with M2 M2.5 M3 M4 M5 Metric Machine Screws Featuring Integrated Washer Assemblies for Secure Fastening in DIY Repairs Electronics and Machinery

500PCS Metric Stainless Steel Nut and Bolt Assortment Kit for Small Hardware
✔️ M2 M2.5 M3 M4 M5 Machine Screws with Nuts and Washers

This 500-piece metric hardware assortment kit includes small machine screws with matching nuts and washers, made for electronics, DIY builds, repairs, and precision assembly where clean threads and secure fastening really matter.

✅ Pack size: 500 pieces total
✅ Material: 304 stainless steel for rust and corrosion resistance
✅ Metric thread sizes included: M2, M2.5, M3, M4, M5
✅ Cross recessed pan head design for steady driving
✅ Integrated washer design helps resist loosening over time
✅ Smooth rolled threads for consistent tightening
✅ Handy for electronics, small devices, automotive parts, and machinery
✅ Organized case keeps sizes separated and easy to grab

Metric sizes and quantities
(All dimensions listed are metric only)

Thread Length Sets Included
M2 6mm 15
M2.5 8mm 15
M2.5 12mm 15
M3 8mm 20
M3 12mm 20
M4 8mm 13
M4 16mm 12
M5 8mm 8
M5 16mm 7

💡 Why are integrated washer machine screws used in small metric assemblies?
Integrated washer machine screws are commonly chosen when vibration resistance and consistent preload are important.

• Built-in washers help distribute load evenly across the surface

• Reduced loosening under vibration compared to plain screws

• Faster installation with fewer loose parts to manage

• Reliable performance in electronics, machinery, and compact assemblies

This compact metric kit keeps the right fastener ready, making small repairs and detailed builds quicker, cleaner, and more dependable.