YFS 12.9 M2 Button Head Screw Package

YFS is praised by the industry for its excellent internal quality and appearance-black gold steel. Grade 12.9 screws refer to ultra-high-strength screws made of SCM435 alloy steel with a small tensile strength of 1220 MPa and a hardness of 39-44 HRC. It is mainly used in the textile, hydraulic, injection, and machinery industries, and most of the manufacturers are Taiwan-funded enterprises. It is the best choice for FPV drone. Length Weight (pcs) Includes 4mm 0.15g 40/pcs 5mm 0.16g 40/pcs 6mm 0.18g 40/pcs 7mm 0.22g 40/pcs 8mm 0.23g 40/pcs 10mm 0.25g 40/pcs 12mm 0.31g 40/pcs 14mm 0.32g 30/pcs 16mm 0.34g 30/pcs Quantity may vary ±3pcs