5/8-18 x 3 Flat Socket Cap Screw Alloy

1 1/16 x 6 Reduced Shank Drill Bit Cobalt (1/2 Shank)

Typical hardness is HRB 68 - HRC 32

Typical hardness on diameters 1/4 to 1 inch is HRC 25-34

7/8-14 x 6 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (15) M12-1.75 Socket Set Screws Cup Point DIN 916 Black Oxide 5/8-18 x 3 Flat Socket7 8 14 x 6 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (15) . L9 High Tensile Strength Hex Cap Screws are designed for use in high stress, severe service environments. The highest mechanical strength off the shelf fastening system available, its special features control torque tension characteristics to develop high clamp loads when using properly controlled tightening methods. Brighton Best manufactures L9 bolting from AISI alloy steels. L9