Type A - Headed dowel, low type, with centre hole in the bottom
Type B - Workholding bolt, high type, cylindrical, with centre hole on both sides
Type C - Workholding bolt, high type, flattened, with centre hole on both sides
DIN6321 Workholding bolts, Headed Dowel, Steel
Workholding bolts DIN 6321 are inserted into bores for positioning, to compensate for tolerances in the spacing of two bores. The flattened shape of Type C makes the insertion easier, Another application of this design is to fix parts to be positioned in one direction only.
Types A and B can also be used as bearing surfaces, stops or as foot.
Pin body - Steel, hardened, blackened