Mast Clamp for 1.5″ Square Boom – Heavy Duty

Clamp for holding twin 1-1/2″ square boom to 2″ round mast. Allows boom to be adjusted to point of balance. No holes are needed through the boom. Clamp comprises 3 aluminium plates, 2 M6 U bolts with saddles and four M6 bolts. Nominal size is 220 x 150mm, using 1/4″ plate. Aluminium with bright zinc plated Bolts.