LP-85817 Flange Locknut Grade 8 Alloy Steel 3/8-16

Flange Locknut, Grade 8, Alloy Steel, Zinc Finish, Coarse Thread, 9/16" Across Flats, 0.425" Thickness, 3/8-16 

• 30% stronger than standard nuts
• Eliminates the need for assembling washers
• Meets IFI-107 Specifications – Class 2B thread
• Identified by six symmetrically spaced marks on the chamfered surface on the top of the nut or on the flange
• Can be used with Tuff-Torq® and 150,000 PSI flange bolt applications
NOTE: Not recommended for use at temperatures above 450°F (232°C).