The Spike® anchor is formed with an "s" shaped configuration at the working end of the anchor to create an expansion mechanism

7/16-20 x 5 1/2 Hex Cap Screw SS 18-8 (A2)

1/4-28 x 1 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (1600)

3/4-10 x 11 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (15)

0 x 180 Hex Cap Screw 8

3/4-10 x 2 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (120) 5/8-11 Flat Socket Cap Screws Alloy The Spike® anchor is formed3 4 10 x 2 1 2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (120) . 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