The bolt, nuts and washers included with this San-o-Sub Tank Band Bolt are all made of marine grade stainless steel. The 150 mm long, 8 mm diameter all-thread headless bolt provides the option to adjust the bolt height.
Depending on the backplate brand and model, it is possible to have too many threads protruding causing the bolts to abrade and eventually puncture a dry suit or wetsuit. The headless bolts allow you to precisely adjust the bolt height to perfectly fit any brand or size of backplate and wing assembly.
The items included with each Tank Band Bolt are:
1 x 150 mm (6 inch) long, 8mm bolt
2 x nuts
1 x nyloc nut
1 x wing nut
3 x washers