Marine grade Stainless Steel M6 Posi-pan fin bolts to fit Tuttle , Power and Trimbox Fins .
Sizes in stock -
30mm - BIC TECHNO OD - Starboard tuttle .
45mm - Most Power box boards .
55mm - RSX - Other power box boards .
80mm- Tuttle box Slalom / Formula boards .
100mm - Formula boards .
These are the standard sizes provided by manufactures ! Other sizes in between can be cut to fit with a good hacksaw . We do have a few even longer bolts if needed . Just order the 100 mm size and let us know the size you need .