Nylon insert locknuts are hex nuts with a nylon-filled collar

14 x 7 HeadLOK® Heavy Duty Flathead Fastener (250)

(AF6™) 1/4 ALLIGATOR® Anchor w/ Flange Nylon (100)

49/64 x 6 Reduced Shank Drill Bit Cobalt (1/2 Shank)

1/4-20 x 3 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (550)

3/4-10 x 5 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (25) 3/8-16 L9 Hex Cap Screws Yellow Zinc Plated - Domestic USA Nylon insert locknuts are hex3 4 10 x 5 1 2 Grade 5 Hex Cap Screw Plain Domestic USA (25). Grade 5 Hex Cap Screws are manufactured in the USA from medium carbon steel. Our Grade 5 material meets or exceeds SAE J429 Grade 5 specifications. All products are manufactured with rolled threads. Typical hardness on diameters 1 4 to 1 inch is HRC 25 34. On diameters over 1 inch to 1 1 2 hardness will range from HRC 19 30. Tensile strength for diameters 1 4 to 1 inch is a minimum of