Surface treatment: black

Product introduction: a quarter - 20, 3/8 -- 12, 16, 1/2-7/16-14, 5/8 to 11

Other instructions: fastening parts with relative position fixed, especially in the axial positioning, and do not allow the nail head above the surface of the occasion, fastening force the bank of China, should be used with Allen whorls.

Tail hex screw set _ inch round tail set _ English hex screw set _ English set 45 h supply 12.9 inch round tail hex screw set Inch round tail set Imperial hex screw inch set set 45 h inch round tail set screw also called inch round tail set screws or imperial include screw, commonly used with machinery in the hydraulic, bearing joints, have the effect of seepage prevention and lock, our company strictly according to the British standard standard use alloy steel manufacturing, mechanical hardness can be up to 12.9 on the Richter scale, in order to increase the leakage of sealing effect to prevent loosening or can also be used as processing.