66 products
NSH / NSHM Series SHOELOK Locknuts
NSH (inch) and NSHM (metric) SHOELOK locknuts lock tangentially: a clamp screw drives a hardened shoe against the shaft thread, wedging the nut in place without a lockwasher, tab, keyway or polymer insert. The lock is all-metal, so it holds at temperature, and it is applied and released with a hex key rather than by bending and re-bending a washer tab.
NSH / NSHM Series Specifications
- Part numbers: NSH-00 through NSH-40; NSHM-00 through NSHM-40 (66 sizes stocked)
- Bore / shaft size (inch): 0.664 in to 7.847 in
- Outside diameter (inch): 0.755 in to 9.84 in
- Bore / shaft size (metric): 17 mm to 200 mm
- Outside diameter (metric): 19.2 mm to 249.9 mm
- Material & temperature: Carbon steel body with hardened alloy clamp screw and shoe; 300°F maximum operating temperature
- Standards: NSH to ANSI/ABMA 8.2-1999, NSHM to ISO 2982-2:2013(E); made in USA, RoHS
Applications
Bearing retention where the shaft has no keyway for a lockwasher tab, in gearboxes, pumps, spindles, conveyor drives and rebuilt equipment.
Related Whittet-Higgins Series
- SLAS Series SHOELOK Assembly Sockets
- TLN / TLM Series TANGENTLOK Locknuts
- CNB / CNC / CNF / CNM / CNS Series CLAMPNUTS
- BL / BLM Series BEARLOK Locknuts
Apollo is an authorized Whittet-Higgins distributor. Every part on this page is genuine Whittet-Higgins, manufactured in the USA. Need a size that is not listed, or help matching a locknut to its lockwasher and assembly socket? Contact our team.

