The 29mm Fin Holder is designed to hold a single fin in place while the root tab is glued in place whether it is a through wall or air frame surface mount.
The BT60/38mm Fin Holder is designed to hold a single fin in place while the root tab is glued in place whether it is a through wall or air frame surface mount.
The BT55 Fin Holder is designed to hold a single fin in place while the root tab is glued in place whether it is a through wall or air frame surface mount.
The 54mm Fin Holder is designed to hold a single fin in place while the root tab is glued in place whether it is a through wall or air frame surface mount.
The 2.5 Inch (63mm) Fin Holder is designed to hold a single fin in place while the root tab is glued in place whether it is a through wall or air frame surface mount.
The 65mm Fin Holder is designed to hold a single fin in place while the root tab is glued in place whether it is a through wall or air frame surface mount.
The 75mm Fin Holder is designed to hold a single fin in place while the root tab is glued in place whether it is a through wall or air frame surface mount.
The 98mm Fin Holder is designed to hold a single fin in place while the root tab is glued in place whether it is a through wall or air frame surface mount.
The 8 Inch Fin Holder Kit is designed to hold a single fin (up to 3/8 thick) in place while the root tab is glued in place whether it is a through wall or air frame surface mount.
These nut holders have two 6-32 nuts spaced at the required distance for mounting the great (personal opinion) 1010 rail guides that Public Missiles Ltd makes. This product also contains the required flat head screws needed to mount the guides.