Height: ~31mm (~1-1/4")
Width, at bottom: ~ 68mm (~2-5/8")
Width, at top, or max: ~77mm (~3")
Length, overall: ~ 146mm (~ 5-3/4")
Width, inside at pivot pin: ~27mm (~1-1/8")
Fastener spacing, center to center: ~50mm (~2")
Fastener clearance hole diameters: ~5mm (~3/16")

1) In around 2012 Catalina started supplying the Capri 22 with Selden masts and standing rigging. Current production Capri 22s (hulls 1259 and up) are now supplied with Selden rigs. This part is only for Capri 22s with Selden rigs.