Shaftloc® is a registered trademark of Stock Drive Products/Sterling Instrument
Shaftloc® is a patented fastening system that makes use of a simple two-piece construction to secure rotating components to a shaft. The key to this compact, efficient design is the wedging action created by its unique thread profile. Full details on this design and its advantages are given in the catalog. Several styles of Shaftloc® fastener are available, as well as special pulleys to be used with them.