R1 Chrome "FR" Locknut (39.5mm). Supplied with "top screws" or "rear bolts".
R2 Chrome "FR" Locknut (41.28mm). Supplied with "top screws" or "rear bolts".
R2 Gold "FR" Locknut (41.28mm). Supplied with "top screws" or "rear bolts".
R4 Gold "FR" Locknut (42.86mm). Supplied with "top screws" or "rear bolts".
R2 Black "FR" Locknut (41.28mm). Supplied with "top screws" or "rear bolts".
R6 Black "FR" Locknut (39.69mm). Supplied with "top screws" or "rear bolts".
L3 Gold "FR" Locknut for Left Handed guitars (41.28mm). Supplied with "top screws" or "rear bolts".