Ceramic-coated deck and fence screw built for outdoor projects with ACQ-, MCA-, and CA-treated lumber. The combo head accepts both a #2 Phillips and a #2 square drive bit so you can use whichever bit is already in the driver, and the bugle countersunk head with self-drilling nibs seats flush without pre-drilling a pilot hole.

• Size: #8 gauge x 3" length
• Pack: 5 lb box
• Drive: Combo - takes a #2 Phillips or a #2 square drive bit
• Coating: Ceramic coating rated for 1,000 hours of ASTM B117 salt-spray protection - holds up against the copper-azole accelerated corrosion of modern pressure-treated lumber
• Head: Flat countersunk bugle with self-drilling nibs for flush seating without pilot holes
• Point: Sharp gimlet point pierces softwood without splitting
• Lumber compatibility: ACQ-treated, MCA-treated, CA-treated, cedar, redwood, and standard SPF dimensional lumber
• Applications: Deck boards, fence pickets and rails, pergolas, arbors, treated-lumber landscape structures

Tip: Best for thicker 2x decking into doubled rim joists, treated-lumber stair stringers, and 2x fence rails seating deep into 4x posts. 5 lb box: Mid-size projects (backyard deck, residential fence run, pergola or arbor assembly).