brick and cement block

7/16-20 x 4 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (175)

an increased 6-Lobe T40 drive

5/16-24 x 6 Grade 5 Hex Cap Screw Plain Domestic USA (50)

With a thread size of 3/4-10 x 6

0.22 x 5 Simpson Strong-Drive® SDWS TIMBER Screw Double-Barrier Coating (Exterior Screw) - Black Box (250) 3/8-24 Grade 8 Hex Cap Screws Plain - Domestic USA brick and cement block0. 22 x 5 Simpson Strong Drive SDWS TIMBER Screw Double Barrier Coating (Exterior Screw) Box (250)Designed to provide an easy to install, high strength alternative to through bolting and traditional lag screws. The SDWS structural wood screws are ideal for the contractor and do it yourselfer alike. Features: Bold thread design that provides superior holding power Patented 4CUT tip that ensures fast starts, reduces installation torque and eliminates