1 1/4-12 x 6 Socket Cap Screw Alloy

#44 Heavy Duty Drill Bit - Stubby Length

#28 Heavy Duty Jobber Drill Bit

7/16 x 2 9/16 (1/4 Drive) Magnetic Nut Setter

3/8 x 6 Mushroom Spike Zinc Plated (25) 3/4 Hex Lag Screws Hot Dipped Galvanized 1 1/4-12 x 6 Socket3 8 x 6 Mushroom Spike Zinc Plated (25) . The Spike anchor is a patented, one piece, tamper proof, vibration resistant anchor for use in concrete, block, brick or stone. Several head styles and anchor materials are available. The Spike anchor is formed with an "s" shaped configuration at the working end of the anchor to create an expansion mechanism. Since the anchor is pre expanded, there is no secondary tightening operation required which greatly