When used with castle or slotted nuts

#26 Heavy Duty Drill Bit - Stubby Length

7/16-14 x 3/4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (100)

Heavy duty construction made to Type J aircraft specifications

1/2-20 x 3 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (50)

1 1/4-12 x 8 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (6) 9/16-18 Socket Set Screws Cup Point Alloy When used with castle or1 1 4 12 x 8 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (6) . 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