100pc Nylon Plastic Machine Screw PF-620N M6x20x1 M6x20 6×20 Pitch 1mm M6 KSS *
M6x20 pitch=1.0mm. KSS, made in Taiwan. Nylon Plastic Machine Screw. Material : Nylon 66. Net weight approx : 78g, 100pcs. Hope you can understand. For example 3 For example 2 .