Description Feature Specifications Certificate Nylon flat washer for nuts or screws. Strict dimension let you free from unexpected back-off. Reliable nylon character ensures the excellent lock effect. OEM / ODM product. Part No. Screw OD mm ID mm T mm Nylon-M3 M3 7.0 (0.276) 3.2 (0.126) 0.5 (0.020) Nylon-M4 M4 9.0 (0.354) 4.5 (0.177) 0.8 (0.031) Nylon-M5 M5 8.0 (0.315) 4.8 (0.189) 1.0 (0.039) Nylon-M6 M6 12.0 (0.472) 6.2 (0.244) 0.5 (0.020) Nylon-M8 M8 12.7 (0.500) 8.0 (0.315) 1.0 (0.039) Nylon-M10 M10 24.0 (0.945) 10.5 (0.413) 2.0 (0.079) Nylon-M12 M12 24.0 (0.945) 13.0 (0.512) 2.5 (0.098) Nylon-M16 M16 30.0 (1.181) 17.0 (0.669) 3.0 (0.118) Nylon-M20 M20 37.0 (1.457) 21.0 (0.827) 3.0 (0.118) Nylon-M24 M24 50.0 (1.969) 25.0 (0.984) 4.0 (0.157) Nylon-M30 M30 60.0 (2.362) 31.0 (1.220) 4.0 (0.157) N/A