#17 x 5" Bronze CTX Construction Lag Screw 300ct | CTX175
Details
Big Timber CTX Construction Lag Screw
Construction Lag Screws are engineered for structural wood fastening, delivering high pull‑through strength with a round washer head and strong driving power from a T‑40 star drive. The 3X Bronze coating provides triple‑layer exterior protection and is fully ACQ compatible for treated lumber. Ideal for log construction, timber frames, beams, girders, ledgers, posts, fencing, SIP panels, pole barns, and general structural wood connections. Built from durable steel and designed for high‑performance fastening in both exterior and interior applications.
Replacement for:
- GRK RSS RUGGED STRUCTURAL SCREW
Features:
- Structural construction lag screw
- 3X Bronze coating for exterior or interior use
- Round washer head for increased pull‑through strength
- Type‑17 point with V‑Cut notches and aggressive knurl
- Peak Performance™ lubrication for smoother driving
- DRJ certified under TER 1907‑01
- IBC and IRC compliant
SKU Specifications:
- Drive Size: T‑40
- Diameter: #17
- Screw Length: 5"
- Thread Length: 3"
- Point Type: Type‑17 Point
- Quantity: 300
- Weight: 20.1 lbs
- Approx. Screws per lb: 14
- Bit Included: No
Primary Applications:
- Log construction
- Timber frames
- Laminated beams
- Girders
- Ledger boards
- Stair rails
- Deck posts
- Fencing
- SIP panels
- Pole barns
- Structural wood connections
Material: Steel
Product Color: Bronze
Certification: DRJ Third‑Party Certified (TER 1907‑01)
Prop 65 Warning: This product contains a chemical known to the State of California to cause cancer, or birth defects or other reproductive harm
Ter Numbers: 1907‑01, 2104‑04, 1907‑04, 1907‑03, 1911‑05
Big Timber CTX Construction Lag Screws are compatible with treated lumber. For areas within one mile of saltwater, near swimming pools, exposure to corrosive chemicals, or other environments where corrosion is more likely to occur, use the proper size, grade, and type of Big Timber Stainless Steel Fasteners. Stainless available as SCTX.