The Light Source MGM
Aluminum Mega Grid-Lock Pipe Joint


The Light Source MGM Mega-Gridlock is designed for permanent pipe grid installations in studios and theaters. Joins two overlapping pipes together in a 90° joint. Grooves act as a wrench holding the nut from turning while installing. Installs with a hex key tool in a battery drill.

Fastens any combination of 1-1/2" pipe (1.9" OD), 1-1/4" pipe (1.66" OD), and 2" OD Tube. (Tight fit on 2" OD tube)

The Mega-Gridlock can be used on curved track down to a radius of 3 feet (or a circle with a diameter of 6 feet).

Tighten the bolts to 11 foot pounds, which is about as tight as as can be done with a 6" hex key wrench.

Light Source MGM Specifications:

  • Minimum Size: 1.25" pipe, 1.66" OD pipe
  • Maximum Size: 1.5" pipe, 1.90" OD pipe, 2" OD truss tube
  • Safe Vertical Working Load: 1250 lb (568kg)
  • Hardware:
    • 4 each – 5/16" × 2" socket head cap screws
    • 4 each – 5/16" Nylock nuts
  • Dimensions: 3.65" x 3.65" x 4.375" tall max (0.375" plus the thckness of the 2 pipes joined)
  • Weight: 15 oz
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