All material is manufactured with rolled threads

17/32 x 6 Reduced Shank Drill Bit Cobalt (1/2 Shank)

6-32 x 3/8 Phillips Flat 82 Undercut Machine Screw Black Zinc Plated (10

1 1/4-7 Finished Hex Nut SS 316 (A4)

#42 Heavy Duty Jobber Drill Bit

1/4-20 x 1 1/4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (1800) M16-2.00 Socket Set Screws Cup Point DIN 916 Zinc Plated All material is manufactured with1 4 20 x 1 1 4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (1800) . 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.