These are fully threaded hex cap screws (i

1-8 x 3 A307A Hex Tap Bolt Zinc Plated

#39 Heavy Duty Drill Bit - Stubby Length

17/64 Heavy Duty Drill Bit - Stubby Length

3/4 x 12 High Speed Long Boy (1/2" Shank)

1 1/4-7 x 4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (32) 3/4 Cotter Pins Plain Steel These are fully threaded hex1 1 4 7 x 4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (32) . 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