Grip-Rite GRSSHW51631820 Hex Washer Head Structural Screws, 3-1/8 Inch

Highlights:

• Color: Black
• Material: Steel
• Callout Size: 5/16 inch wire
• Length: 3-1/8 inch
• Drive Style: Star
• Head Type: Hex Washer Head
• Number in Package: 20 pk
• Driver Bit Included: Yes
• Indoor or Outdoor: Outdoor
• Packaging Type: Clamshell
• Thread Type: Coarse
• Application: Decking/Gazebos/Playground Structures/Pergolas/Trusses
• WHAT’S INCLUDED: Structural. GRK. Spax. ESR. Screw.Star. PrimeGuard
• REASON ADDED New Lineup of Structural Screws from Grip Rite
• Protected and improved corrosion resistance
• Type 17 point for quicker penetration into the wood
• Faster than lag screws in exterior structural wood applications
• Approved for use in treated lumber