Heavy Duty Sliding Arm w Unique Anti-slip device (475 series 5 1/2)
Fits Heavy Duty 475 series Original Turnus Fitters & Steel Construction Clamps with a throat depth of 5 1/2".
Features revolutionary ANTI-SLIP device (patented) which prevents the arm of the clamp from slipping down the rail during fit up. It allows the arm to be easily positioned securely anywhere on the rail