Description 20" Standard Duty L-Clamp | Case of 4 | JETSave Big when you buy case lot 4 per case. Only $121.96 per EACH!. JLRD Series L-clamps deliver generous clamping pressure and throat depth for a wide range of applications. Tempered drop-forged sliding arm reduces clamping set-up time and is ideal for high-volume production work Replaceable spindle and pads available Rails, sliding arms, and spindles are heat-treated for strength High carbon Acme threaded spindle is spatter resistant Nickel-chrome plated rails are heat-formed from cold-drawn profiled steel Ideal for industrial, welding, assembly, fabricating, construction and general purpose clamping