Tool steel.

Hardened and ground.

Rest pads Form A are supports for workpieces and fixtures.
Locating pins Form B are for positioning workpieces and fixture components in reamed holes.
The flattened Form C can be used to bridge tolerances in hole spacing or to secure the part to be positioned in one direction only.
Form A and B can also be used as hardened stops and as fixture feet.
For similar pins see K0352, K0353, K0354 and K0355.

Form A: Rest pad
Form B: Cylindrical locating pin
Form C: Flattened locating pin

For other dimensions see Form A.