Big Timber's 15 x 3" Bronze T-30 Lag Screw is engineered for heavy-duty exterior fastening where strength and durability matter most. Constructed from hardened steel and fully ACQ compatible, these lag screws are ideal for use with treated lumber and outdoor applications. The round wafer head delivers a clean, low-profile finish, while the knurled shoulder reduces friction and improves draw-down for a tight, secure connection. Deep, sharp threads provide exceptional holding power, and the T-30 drive allows for high-torque installation with reduced cam-out. Conveniently packaged in a durable plastic bucket with a sturdy metal handle, these lag screws are easy to transport, store, and keep organized on any jobsite. | Big Timber Bronze T-30 Lag Screw | Size 15 x 3"