New OEM Yamaha Marine Rigging Fastener 68F-42753-00-00. This is an OEM part, not an aftermarket. 

Fitment Yamaha Outboard, 2002-Newer-- Please verify individual fitment prior to purchase
DX150
F75, F80, F90, F100, F115, F150, F200,F225, F250, F300, F350,
FL150, FL250, FL300, FL350,
LF115, LF150, LF200, LF225, LF250, LF300, LF350,
LX150, LX200, LX225, LX250, 
LZ150, LZ200, LZ250, LZ300,
SX150, SX200, SX225, SX250,
VF200, VF225, VF250,
VX150, VX200, VX225, VX250
VZ150, VZ175, VZ200, VZ250, VZ300, 
Z150, Z175, Z200, Z250, Z300