Bulkheads & Couplers

This BT55TC x .125 Lite Ply Bulkhead Assembly is used for adding a payload section to a model rocket. The bulkhead is sized to fit inside Sunward BT55 tube couplers. Comes with a bulkhead plate, threaded screw eye bolt, nut and two washers. Coupler ...

This BT56 x 2 Tube Coupler is used for multi-staging and joining BT56 (1.346 diameter) body tubes. Direct replacement part for Estes, Sunward and other similarly sized model rockets. Grid spacing in photo is 1/2.

This BT80TC x .125 Lite Ply Bulkhead Assembly is used for adding a payload section to a model rocket. The bulkhead is sized to fit inside Sunward BT80 tube couplers. Comes with a bulkhead plate, threaded screw eye bolt, nut and two washers. Coupler ...

This Custom Rocket Company BT50 payload adapter is designed to fit into the Custom BT50 payload tube. The part is made out of injection molded plastic and a has hole on one end for the screw eye. Specifications: Outside Diameter: 0.949" Length: 1...

Includes an assortment of six Estes tube couplers to fit BT5, BT20 and BT50 body tubes. Perfect for connecting 2 body tubes of the same size together!Retail Price: $ 4.00

The Qualman Rocketry BT55C x .125 Lite Ply Bulkhead is used for adding a payload section to a model rocket. The bulkhead is sized to fit inside Sunward BT55 tube couplers. Comes with four bulkhead plates and four smaller backer plates. Coupler sold ...

The Qualman Rocketry BT60C x .125 Lite Ply Bulkhead is used for adding a payload section to a model rocket. The bulkhead is sized to fit inside Sunward BT60 tube couplers. Comes with four bulkhead plates and four smaller backer plates. Coupler sold ...

The Qualman Rocketry BT70C x .125 Lite Ply Bulkhead is used for adding a payload section to a model rocket. The bulkhead is sized to fit inside Sunward BT70 tube couplers. Comes with two bulkhead plates and two smaller backer plates. Coupler sold...

The Qualman Rocketry BT80C x .125 Lite Ply Bulkhead is used for adding a payload section to a model rocket. The bulkhead is sized to fit inside Sunward BT80 tube couplers. Comes with two bulkhead plates and two smaller backer plates. Coupler sold...

Includes an assortment of nineteen Sunward tube couplers to fit BT20, BT50, B55, BT56, BT60, BT70 and BT80 body tubes. Perfect for connecting 2 body tubes of the same size together! Estes quality parts - cheaper price! Direct replacement parts for...