M4-0.7 x 50 Metric Socket Head Cap Screw Class 12.9 ISO 4762 Black Ox ESH which is a type of

which is a type of washer that has teeth on the outside

preventing it from loosening due to vibration or other factors

these bolts are perfect for a wide range of construction

and are full threaded for maximum holding power

The screw has a length of 1 3/4 inches and a diameter of 1/4 inch

M4-0.7 x 50 Metric Socket Head Cap Screw Class 12.9 ISO 4762 Black Ox ESH which is a type ofThe M4 0. 7 x 50 Metric Socket Head Cap Screw Class 12. 9 ISO 4762 Black Ox is a high strength screw made of alloy steel and hardened to a tensile strength of 12. 9. It has a black oxide finish for corrosion resistance and a socket head for easy driving with a hex key. The screw is 50mm long and has a diameter of 4mm with a thread pitch of 0. 7mm. It meets the specifications of ISO 4762 and is commonly used in automotive, industrial, and construction