12.9-grade screws. It is one of the top brands in the world for hex socket screws. YFS high-strength hex socket screws are sold worldwide, utilizing the screw-specializing technology from Taiwan to create high-quality hex socket screws that meet users' needs.
Type : M3 x 20
Head Type : Countersunk Flat Head
Include :
1 x M3x20 YSF Countersunk
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