Semroc Plywood Block or Bulkhead for ST-7(2 ring Set) SEM-PB-7
Used as lightweight bulkheads for gluing on the end of an ST-7 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: 0.715" and 0.759"
Made in the USA
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