The steel or stainless-steel clamp-type couplings use eight hex-type screws for high-load holding power yet will not mar shafts. The couplings are offered in one and twopiece designs with and without keyways. Straightthrough styles are also available in one, two, and three-piece configurations.

Stafford Mfg. Corp., Box 277, North Reading, MA 01864, (800) 695-5551, staffordmfg.com