YFS 12.9 M2.5 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 0.23g 30/pcs 5mm 0.26g 30/pcs 6mm 0.28g 30/pcs 8mm 0.35g 30/pcs 10mm 0.38g 30/pcs 12mm 0.45g 30/pcs 14mm 0.52g 30/pcs 16mm 0.57g 30/pcs 20mm 0.67g 20/pcs Quantity may vary ±3pcs