Semroc Plywood Bulkhead or Block for BT-20 tube(2 ring set) SEM-PB-20P
Used as lightweight bulkheads for gluing on the end of a JT-50 coupler, one ring fits inside the coupler and one on top to match the ID of the tube.
Hole for Screw Eye #10(SE-10)
Thickness assembled: 0.25"
Diameter: 0.736" and 0.710"
Made in the USA
Semroc Plywood Bulkhead or Block for BT-5 tube(2 ring set)(same RA-5P) SEM-PB-5P Used as lightweight bulkheads for gluing on the end of a HTC-5 and JT-5 coupler, one ring fits inside the coupler and...
Semroc Plywood Bulkhead or Block for BT-58 tube(2 ring set) SEM-PB-58P Used as lightweight bulkheads for gluing on the end of a JT-50 coupler, one ring fits inside the coupler and one on top to match...
Semroc Plywood Bulkhead or Block for BT-80 tube(2 ring set) SEM-PB-80 Plywood Blocks are used as lightweight bulkheads for gluing on the end of a JT-80 coupler, inside and outside
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Semroc Plywood Bulkhead or Block for BT-5 tube(2 ring set)(same RA-5P) SEM-PB-5P Used as lightweight…
Semroc Plywood Bulkhead or Block for BT-58 tube(2 ring set) SEM-PB-58P Used as lightweight bulkheads…
Semroc Plywood Bulkhead or Block for BT-80 tube(2 ring set) SEM-PB-80 Plywood Blocks are used as li…
Semroc Plywood Block or Bulkhead for BT-55 tube(2 ring set)(same RA-55P) SEM-PB-55 Used as lig…
