Premium Heavy Duty Swivel Boss Head

This premium swivel bosshead clamp is made from high-grade zinc alloy with a non-toxic powder coating that is non-ferrous, rust-free, and built for long-lasting laboratory use. The thicker casting provides high torsional strength, designed to hold rods orthogonally and carry heavy loads without torque damage. The 360-degree swivel feature allows positioning at different angles. Thicker-than-standard 7mm clamping screws accept rods up to 16mm in diameter. The large opening holds rods up to 3/4" (19mm), while the smaller opening holds rods up to 5/8" (16mm). Three wide-pad metal screws provide secure fastening to support apparatus.