Steel clamps are supplied with 1/4-20 short flat-cushion spindle CL-14112-FC. Open-arm versions are additionally supplied with (2) CL-147-TW flanged washers.
Solid-arm version is supplied with CL-142000-BR weld-on bolt retainer. Stainless steel clamps are supplied with 1/4-20 stainless hex-head spindle CL-14112-SA-S and (2) CL-147-TW-S stainless flanged washers. For alternative clamping spindles, see Related Products below.