12-14 x 1-1/2 Unslotted Indented Hex Washer Head Self-Drilling Screw 410 Stainless Steel Passivated and WaxedAttaches metal or aluminum to metal or aluminum.

This 1/4 x 3-3/4 Slotted Indented Hex Washer Head Concrete Screw in Blue Finish is perfect for fastening materials to concrete surfaces

Attaches wood to wood

This 1/4 x 4 Slotted Indented Hex Washer Head Concrete Screw in Blue Finish is perfect for fastening materials to concrete surfaces

This 3/16 x 3-3/4 Slotted Indented Hex Washer Head Concrete Screw in Blue Finish is perfect for fastening materials to concrete surfaces

This 1/4 x 2-3/4 Phillips Flat Head Concrete Screw in Blue Finish is perfect for fastening materials to concrete surfaces

This 3/16 x 3-1/4 Slotted Indented Hex Washer Head Concrete Screw in Blue Finish is perfect for fastening materials to concrete surfaces

This 1/4 x 1-3/4 Slotted Indented Hex Washer Head Concrete Screw in Blue Finish is perfect for fastening materials to concrete surfaces

insulation to wood

This 3/16 x 1-1/4 Slotted Indented Hex Washer Head Concrete Screw in Blue Finish is perfect for fastening materials to concrete surfaces

This 3/16 x 1-3/4 Phillips Flat Head Concrete Screw in Blue Finish is perfect for fastening materials to concrete surfaces

This 1/4 x 3-3/4 Phillips Flat Head Concrete Screw in Blue Finish is perfect for fastening materials to concrete surfaces

This 1/4 x 1-3/4 Phillips Flat Head Concrete Screw in Blue Finish is perfect for fastening materials to concrete surfaces