Part number:
possible part numbers found.A cap nut and grip pad.
[Nut]
-For clamping work.
-It can be used by attaching it to the tip of the tightening bolt of a jig or tool.
[Bolt]
-This recessed pad is for slip resistance of black leather workpieces.
-It can be used for various purposes.
-It can be used as a fixing pad.