Featuring patented thread technology, they require no pre-drilling and drive faster and easier than conventional lags and other structural lag screws.

Features

• No required pre-drilling in wood be more efficient on the job by eliminating time consuming steps with self-drilling spax
• Patented thread serrations require up to 40% less driving torque to increase installation speed while helping prevent cracking in logs
• Built-on washer head designs eliminate the need and extra cost of a separate washer
• Fastener length stamp on the head provides convenient identification without measuring and aids on-site inspections
• T-star washer head offers a low-profile option for outstanding clamping force with improved aesthetics
• Faster & easier installation
• Pack of 50

Specifications

• Length: 4 in.
• Head Type: Washer Head
• Grade: 5 Grade:
• Thread Type: Serrated
• Application: Wood
• Self Drilling: Yes
• Diameter: 0.3125 in.
• Finish: High Corrosion Resistant
• Material: Steel
• Driver Bit Included: Yes
• Color: Green
• Indoor or Outdoor: Outdoor
• Drive Size: T-40
• Thread Length: 2.375 in.
• Head Height: 0.140 in.
• Head Outer Diameter: 0.776 in.
• Weight: 2.66 lbs