Replacement Shoulder Bolt for Ridgid Rapidgrip Pipe Wrench
for wrench size 12" / 14" - Ridgid part# 98037
Genuine Ridgid replacement part

I also have these (until they're gone) for the 12"/14" Rapidgrip wrench:
Hook Jaw (98032)
Pivot Pin (98047)
Torsion Spring (98042)
Inquire before purchasing and I can combine shipping.