The The Light Source ML9M - Mega 90 Degree Fixed Coupler - Aluminum Finish with Nylock nut in silver is a heavy‑duty rigging coupler designed to create a fixed right‑angle connection between structural tubing such as pipe and truss in professional stage, lighting, and event support systems. Unlike a swivel or adjustable coupler, this fixed model uses a solid joining plate that locks two coupler halves at exactly 90 degrees, preventing unwanted rotation or movement once installed. This rigidity is especially important in setups where precise load orientation and structural stability are critical, such as in grid constructions, scenic support assemblies, or complex truss intersections where predictable geometry is essential.

Machined from durable aluminum with a corrosion‑resistant silver finish, the Mega‑Coupler XL version is sized to accommodate standard pipe and truss diameters common in the entertainment industry. The inclusion of a Nylock nut on the main bolt assembly enhances the clamp’s security by resisting loosening due to vibration or repeated handling — a valuable feature in touring, rental, and high‑traffic installation environments. Its streamlined but robust design delivers confidence that attached fixtures and structural members will remain secure under load.

Functionally, this coupler attaches quickly using a single clamping bolt with integrated Nylock nut, tightening around the support pipe or truss tube to create a firm mechanical bond. Once installed, the fixed 90° orientation allows technicians to build rigid, load‑bearing joints without the risk of coupling rotation that can occur in swivel variants. Its working load limit of 1,100 lb makes it suitable for a broad range of lighting and structural applications when used within recommended sizing and installation practices.