Internal hexagonal knurling

Name: hexagonal knurling

Specification :M2-M24

Material: Carbon steel, alloy steel, stainless steel, titanium alloy

Remarks: It is specially used for fixing relative position of fastening parts, especially for axial positioning, and in surface situations where nail head is not allowed to be exposed. The fastening force is medium, and it should be used in conjunction with the inner hexagonal screwdriver.