The Matthews C-Clamp with 2 Baby Pinshas 2 separate 5/8″ diameter pins at different angles so that the light fixtures may fit with minimal clearence.
Clamp jaw offers a maximum 6″/15.24cm opening.

MSE C Clamps are available in 4, 6, 8, 10, and 12, with or without 5/8″ mounting pins or Junior Receivers. Each clamp has a steel channel welded to both sides of the opening for better and safer locking. Clamps made for mounting Baby fixtures have two separate pins at different angles so that the light fixtures may fit with minimal clearance. Junior Receivers are made in two fixed versions Horizontal and Vertical and a Universal Mounting Junior Receiver which can be used in any one of eight different positions. All MSE C Clamps are made of forged steel.