. Lumen output has improved, meaning better LED efficiency than previous generations. This is the lamp needed for the most difficult lighting situations-warehouses, gymnasiums, health clubs, factories, and arenas- and it succeeds with up to 25,000 lumens of LED-efficient light.
Size: 3/8 inch-16Features an internal nylon ring that grips bolt threads better than a standard finished nutGreat for use in applications where the bolt may be subject to vibrationCan also be used as a secondary nut to help lock the main nut in placeThe side with the nylon insert should face towards the tip of the bolt, not towards the surface being fastenedThread Type: Coarse, Thread Class: UNC-2BSpecification(s) Met: ASME B18.