The Light Source Mega-Slim Coupler with Flat Head Bolt The Mega-Slim Coupler is a low-profile lighting clamp designed for smaller fixtures where a standard coupler would be too bulky. Half the size and 30% lighter than the regular Mega-Coupler, it delivers the same reliable grip and fits the same pipe and truss tube sizes — making it the preferred choice for tight rigs, dense bars, and lightweight fixtures where clearance and weight are critical. It fastens to pipe from 1-1/4" (1.66" OD) up to 2.050" OD truss tube using a wide wing nut for fast, tool-free tightening. Available in multiple bolt sizes and finishes to suit any installation. Key Features: Low-profile design — half the size of the standard Mega-Coupler, 30% lighter Fits 1-1/4" pipe (1.66" OD) to 2.050" OD truss tube Wide wing nut for fast, tool-free tightening Available in 3/8", 1/2", and 1/4" flat head bolt options, plus metric M10 and M12 Available in Black, Silver, and White powder coat finishes No Hardware (NH) versions available for custom bolt configurations Same fit and compatibility as the standard Mega-Coupler Compatible Products: The Light Source Mega-Coupler — the full-size version for heavier fixtures Lighting Clamps & Couplers — browse all clamps at MTN Shop Entertainment & Stage Rigging — full rigging range at MTN Shop Browse our full range of lighting clamps and couplers and entertainment and stage rigging at MTN Shop.