The 219004 is cranks for use in assembly of Cinefold or ultimate folding screen. Cranks are 5/16" (8mm) diameter by 2-1/4" (58mm) long crankbolts, for quick assembly without tools.
Suitable for use in assembly of Cinefold or ultimate folding screen
Cranks are 5/16" (8mm) diameter by 2-1/4" (58mm) long crankbolts