Tension Control Bolt 1.black,HDG.MG,etc 2.Size: M16--M30 3.Alloy steel. 4.can producing as your need.

TC Bolt

Name: TC Bolt

Size: M16--M30Standard: DIN,ANSI,JIS,BS,ASGrade:10.9 12.9Material: Alloy SteelFinishing: ZP Blacken HDG DRCROMET

Tension Control Bol