Exterior Washer Head Structural Wood Lag Screws One Quarter Inch By Three Inch With Torx T Star Bit Included Heavy Duty Rust Resistant Powerlags SPAX Brand For Superior Draw Down Without a Separate Washer Ideal For Outdoor Decking Timber Fastening

Exterior washer head lag screw for outdoor decking ✔️ 1/4 in x 3 in washer-head lag, Torx T-Star, HCR coated

These exterior lag screws are built for structural wood fastening in outdoor decks, timber framing, and treated lumber. The low-profile washer head delivers a clean, modern finish and strong draw-down without needing a separate washer. Pack includes a single heavy-duty screw per order.

✅ Full 1/4 in diameter and 3 in length (6.35 mm x 76.2 mm) for structural draw down
✅ Washer head eliminates separate washer and speeds up install
✅ HCR coating provides exterior corrosion resistance for treated lumber
✅ Heat-treated Grade 5 steel boosts strength and durability
✅ Torx T-Star Plus drive ensures quick bit engagement and fewer cam-outs

Diameter	1/4 in (6.35 mm)
Length	3 in (76.2 mm)

💡 What is an exterior washer head lag screw used for in outdoor woodworking projects?

A handy fastener for securing heavy timber and decking with a clean finish. - Used for decks, pergolas, and timber connections - Draws boards tight without needing a separate washer - Great in treated lumber and exposed environments due to HCR coating - Torx drive speeds up installation and reduces cam-out