Description
Heat-treated for matched strength
Will not loosen even under severe vibration
Locking torque is retained for a minimum of five reapplications
150,000 PSI minimum proof strength
Meets IFI and ANSI specifications
Developed for Grade 8 applications
Designed for use with Tuff-Torq® Cap Screws
Identified by six symmetrically spaced marks on the chamfered surface on the top of the nut
NOTE: Not recommended for use above 450°F (232°C).
For recommended torque values, see Lawson’s E546 brochure.