OWSOO High Tensile Cylinder Hexagon Socket Bolt Bolts Black Socket Screws 12.9 Grade M4*12

This screws are made of fine quality material high durability and practical. It is easy to use save your time. Features: Corrosion resistance and high resistance. Standard hexagonal slot not easy to slide during the installation process. Easier to install and operate save your time. 12.9 grade carbon steel high strength series pratical and perfect gloss. The screw tooth is incisive and it is not easy to slip during rotation. Screw tail smooth quality workmanship high durability. Specifications: Item type: Screw Material: 12.9 grade carbon steel Quantity: 5PCS Selection type: M4*8 M4*12 M4*16 M4*20 M4*25 M4*30 M4*35 M4*40(optional) Package weight: M4*8: 7.5g0.26ounces M4*12: 8g0.28ounces M4*16: 10g0.35ounces M4*20: 11.5g0.4ounces M4*25: 13.5g0.47ounces M4*30: 16g0.56ounces M4*35: 18.5g0.65ounces M4*40: 19.5g0.68ounces Package size: 120*80*20mm4.72*3.14*0.78inches Package list: 5PCS*Screw