Replace lag screws with the Grip Rite PrimeGuard Plus Hex Washer Head Structural Screw. The #10 x 3" screw drives with a 1/4" hex driver or a T-20 star bit (dual-drive head), and the Type 17 self-drilling point cuts into framing lumber without pre-drilling. PrimeGuard Plus exterior coating is approved for use in ACQ pressure-treated lumber, and the screws are ICC-ES evaluated under ESR-3933 for code-compliant structural connections.

• Size: #10 x 3"
• Dual-drive head: 1/4" hex washer with T-20 star recess
• Type 17 self-drilling point - no pre-drilling required in softwood framing
• PrimeGuard Plus corrosion-resistant coating (approved for ACQ-treated lumber)
• ICC-ES evaluation report ESR-3933 for code-compliant load-bearing connections
• Designed to replace lag screws in wood-to-wood structural attachment
• Free driver bit included with every box
• Pack: 25 screws per box

Applications: Deck framing and ledger attachment, pergola and gazebo construction, multi-ply beam lamination, stair stringer attachment, playground structures, and general exterior wood-to-wood structural connections.

Tip: #10 x 3" handles 2x-to-2x face attachment with extra bite, ledger boards to band joists, doubled 2x rim joists, and stair stringer attachments. Step up to 5/16" x 4" when the connection carries shear or lateral load (post bases, multi-ply LVL).