HYTORC Grip-Tight Nut


Protect your commercial fleet from wheel installation related incidents with the new HYTORC GRIP-TIGHT Nut. The GRIP-TIGHT Nut is an instant upgrade for all heavy-duty truck and trailer hub piloted wheel. The patent pending GRIP-TIGHT Nut eliminates the influence of side loads and provides a pinch point free reaction component for applied torque. The GRIP-TIGHT Nut allows for controlled and safe torqueing with convenient cordless tooling systems. Call to request a demonstration of HYTORC cordless tooling system in conjunction with the GRIP-TIGHT Nut.


The made-in-the-USA GRIP-TIGHT™ Nut is produced from through-hardened carbon steel and each free spinning washer is made from through-hardened and tempered chrome-moly steel. The GRIP-TIGHT™ Nut geometry and coatings combine to create a consistent and efficient translation from torque to clamping force.

HYTORC Grip-Tight Nut

Materials and Design

GRIP-TIGHT™ Nuts have M22X1.5 threads, 33mm hex, 27mm height and a 46mm washer diameter. The two-piece GRIP-TIGHT™ Nuts comply with technical requirements of SAE J1965. Cross Reference PN’s: 39773, 39874, 39702, M3979, 39691, 39949, 201.3013, 13-3057, E-9020, W-525, R009020, 511034, KB9020,WA075037, 20857204, 1649492C1, E6HZ-1120-A, MF110343, and MF111026.


GRIP-TIGHT™ Nuts can be torqued and loosened with common impact guns and wrenches. The patent pending washer profile includes a special geometry for rotationally coupling to the HYTORC reaction socket. This washer acts as a coaxial reaction point, thereby eliminating pinch points and removing undesirable side loads. These benefits make it feasible to upgrade to cordless digital tooling systems while increasing the efficiency, quality and safety of wheel nut installations.

Grip-Tight Nut