18-8 STAINLESS K-LOCK:
| .NTKC004 | 4-40 KEPS NUT 18-8 STAINLESS |
| .NTKC006 | 6-32 KEPS NUT 18-8 STAINLESS |
| .NTKC008 | 8-32 KEPS NUT 18-8 STAINLESS |
| .NTKC010 | 10-24 KEPS NUT 18-8 STAINLESS |
| .NTKC04 | 1/4-20 KEPS NUT 18-8 STAINLESS |
| .NTKC05 | 5/16-18 KEPS NUT 18-8 STAINLESS |
STEEL K-LOCK:
| NTKC004BO | 4-40 KEPS NUT STEEL BLACK OXIDE |
| NTKC004Z | 4-40 KEPS NUT STEEL ZINC |
| NTKC004ZB | 4-40 KEPS NUT STEEL BLACK ZINC |
| NTKC006BO | 6-32 KEPS NUT STEEL BLACK OXIDE |
| NTKC006SPZ | 6-32 KEPS NUT (1/4 A/F) STEEL ZINC |
| NTKC006Z | 6-32 KEPS NUT STEEL ZINC |
| NTKC008BO | 8-32 KEPS NUT STEEL BLACK OXIDE |
| NTKC008Z | 8-32 KEPS NUT STEEL ZINC |
| NTKC010BO | 10-24 KEPS NUT STEEL BLACK OXIDE |
| NTKC010Z | 10-24 KEPS NUT STEEL ZINC |
| NTKC012Z | 12-24 KEPS NUT STEEL ZINC |
| NTKC04BO | 1/4-20 KEPS NUT STEEL BLACK OXIDE |
| NTKC04Z | 1/4-20 KEPS NUT STEEL ZINC |
| NTKC05Z | 5/16-18 KEPS NUT STEEL ZINC |
| NTKC06Z | 3/8-16 KEPS NUT STEEL ZINC |
316 STAINLESS NYLON:
| ..NTNC010 | 10-24 NYLON INSERT LOCKNUT 316 STAINLESS |
| ..NTNC04 | 1/4-20 NYLON INSERT LOCKNUT 316 STAINLESS |
| ..NTNC05 | 5/16-18 NYLON INSERT LOCKNUT 316 STAINLESS |
| ..NTNC06 | 3/8-16 NYLON INSERT LOCKNUT 316 STAINLESS |
| ..NTNC08 | 1/2-13 NYLON INSERT LOCKNUT 316 STAINLESS |
| ..NTNC10 | 5/8-11 NYLON INSERT LOCKNUT 316 STAINLESS |
| ..NTNC12 | 3/4-10 NYLON INSERT LOCKNUT 316 STAINLESS |
| ..NTNC14 | 7/8-9 NYLON INSERT LOCKNUT 316 STAINLESS |
18-8 STAINLESS NYLON:
| .NTNC010 | 10-24 NYLON INSERT LOCKNUT 18-8 STAINLESS |
| .NTNC012 | 12-24 NYLON INSERT LOCKNUT 18-8 STAINLESS |
| .NTNC04 | 1/4-20 NYLON INSERT LOCKNUT 18-8 STAINLESS |
| .NTNC04D | 1/4-20 NYLON INSERT LOCKNUT 18-8 STAINLESS |
| .NTNC05 | 5/16-18 NYLON INSERT LOCKNUT 18-8 STAINLESS |
| .NTNC06 | 3/8-16 NYLON INSERT LOCKNUT 18-8 STAINLESS |
| .NTNC07 | 7/16-14 NE NYLON INSERT LOCK NUT 18-8 STAINLESS |
| .NTNC08 | 1/2-13 NYLON INSERT LOCKNUT 18-8 STAINLESS |
| .NTNC10 | 5/8-11 NYLON INSERT LOCKNUT 18-8 STAINLESS |
| .NTNC12 | 3/4-10 NYLON INSERT LOCKNUT 18-8 STAINLESS |
| .NTNC14 | 7/8-9 NYLON INSERT LOCKNUT 18-8 STAINLESS |
STEEL STAINLESS NYLON:
| NTNC002Z | 2-56 NYLON INSERT LOCKNUT STEEL ZINC |
| NTNC004Z | 4-40 NYLON INSERT LOCKNUT STEEL ZINC |
| NTNC006BO | 6-32 NYLON INSERT LOCKNUT STEEL BLACK OXIDE |
| NTNC006Z | 6-32 NYLON INSERT LOCKNUT STEEL ZINC |
| NTNC008BO | 8-32 NYLON INSERT LOCKNUT STEEL BLACK OXIDE |
| NTNC008Z | 8-32 NYLON INSERT LOCKNUT STEEL ZINC |
| NTNC010BO | 10-24 NYLON INSERT LOCKNUT STEEL BLACK OXIDE |
| NTNC010Z | 10-24 NYLON INSERT LOCKNUT STEEL ZINC |
| NTNC012Z | 12-24 NYLON INSERT LOCKNUT STEEL ZINC |
| NTNC04BO | 1/4-20 NYLON INSERT LOCKNUT STEEL BLACK OXIDE |
| NTNC04R | 1/4-20 NYLON INSERT LOCKNUT STEEL RED PAINT |
| NTNC04Z | 1/4-20 NYLON INSERT LOCKNUT STEEL ZINC |
| NTNC04ZB | 1/4-20 NYLON INSERT LOCKNUT STEEL BLACK ZINC |
| NTNC05BO | 5/16-18 NYLON INSERT LOCKNUT STEEL BLACK OXIDE |
| NTNC05Z | 5/16-18 NYLON INSERT LOCKNUT STEEL ZINC |
| NTNC06BO | 3/8-16 NYLON INSERT LOCKNUT STEEL BLACK OXIDE |
| NTNC06C | 3/8-16 NYLON INSERT LOCKNUT STEEL CAD PLATED |
| NTNC06Z | 3/8-16 NYLON INSERT LOCKNUT STEEL ZINC |
| NTNC06ZB | 3/8-16 NYLON INSERT LOCKNUT STEEL BLACK ZINC |
| NTNC07Z | 7/16-14 NYLON INSERT LOCKNUT STEEL ZINC |
| NTNC08BO | 1/2-13 NYLON INSERT LOCKNUT STEEL BLACK OXIDE |
| NTNC08C | 1/2-13 NYLON INSERT LOCKNUT STEEL CAD PLATED |
| NTNC08X | 1/2-13 NYLON INSERT LOCKNUT STEEL PLAIN |
| NTNC08Z | 1/2-13 NYLON INSERT LOCKNUT STEEL ZINC |
| NTNC08ZB | 1/2-13 NYLON INSERT LOCKNUT STEEL BLACK ZINC |
| NTNC10Z | 5/8-11 NYLON INSERT LOCKNUT STEEL ZINC |
| NTNC12G | 3/4-10 NYLON INSERT LOCKNUT STEEL HOT DIP GALVANIZED |
| NTNC12Z | 3/4-10 NYLON INSERT LOCKNUT STEEL ZINC |
| NTNC14Z | 7/8-9 NYLON INSERT LOCKNUT STEEL ZINC |
| NTNC16Z | 1-8 NYLON INSERT LOCKNUT STEEL ZINC |