• 🔩 4 mm Inner Diameter Washer – 100 Pieces ▪ Inner diameter: 4 mm ▪ Compatible screw/bolt: M4 ▪ Whitworth equivalent: 5/32 Washer ▪ Package included: 100 pieces Used in ▪ small machines, hardware assemblies and screw support applications It is resistant to rust thanks to its ▪ bright white galvanized coating