SPAX 1/4" x 6" Interior Washer Head Structural Lag Screws
Structural washer-head lag screws with heat-treated grade 5 durability and corrosion resistance. Includes T-Star bit and fast installation features; customers note strong performance and ease of use, with mixed feedback on the included bit
Highlights
- patented thread serration for easy installation
- powerlag screw with washer head
- ICC-ES recognized for structural use
Pros
- corrosion-resistant screw
- heat-treated for durability
- fast driving and reduced wood splitting
- includes T-Star bit
- strong pull-through and withdrawal values
Cons
- bit inclusion feedback is mixed
- specific bit compatibility not clarified
Best For
Features
- Patented thread serration enables faster driving and reduced wood splitting
- Heat-treated, Grade 5 durability for stronger, longer-lasting connections
- ICC-ES building code recognition for structural wood-to-wood applications (ESR-1782)
- T-Star drive with six-lobed design for superior bit engagement and compatibility with standard bits
