Partition Bolt Tamperproof 18-8 SS Plain Finish Truss Head One Way Drive Type Barrel Dia 1/4 In Barrel Length 1 In Barrel Thread Depth 1/2 In Barrel Head Dia 7/16 In Barrel Head Height 0.110 In Thread Size 10-24 Screw Material 18-8 SS Screw Shoulder Dia 1/4 In Grip Range 1 1/4 In Screw Shoulder Length 1/4 In Screw Thread Length 1/2 In Screw Head Dia 7/16 In Screw Head Height 0.110 In Tensile Strength 80 000 PSI Rockwell Hardness B85 B95 Includes Shoulder Screw Package 10