3/8"-16 x 12" Zinc Plated Grade 2 / A307 Steel Coarse Thread Carriage Bolts 25PK The square section grips into the part being fixed (typically wood), preventing the bolt from turning when the nut is tightened..
.Sheet Metal Screw, #8 x 2-1/2 in, Zinc Plated Steel Pan Head Square Drive, 100 PK Sheet metal screws make excellent fasteners for attaching metal hardware to wood because the fully threaded shank provides good retention in wood.
Lag Screw, 1/2 in, 2-1/2 in, Steel, Zinc Plated Hex Hex Drive, 8 PK Lag bolts are designed for securely fastening heavy timbers to one another, or to fasten wood to masonry or concrete..
Sheet Metal Screw, 3/8" x 2 in, Zinc Plated Steel Hex Head Slotted Drive, 4 PK Sheet metal screws make excellent fasteners for attaching metal hardware to wood because the fully threaded shank provides good retention in wood.