That's why it's holding up the sprinkler system in the Tokyo subway

Cotter pins are used to anchor various assemblies by insertion into a drilled hole of a shaft or pin and spreading the points to hold the assembly in position

7/8-14 x 6 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated

Download Simpson DROP-IN® Material Safety Data Sheet

1/2-20 x 2 1/4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (50) Stubby Drill Bits - Fractional That's why it's holding up1 2 20 x 2 1 4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (50) . 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