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SPAX PowerLag 5/16 in. in. X 6 in. L T-40 Washer Head Serrated Structural Screws

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Washer-head design and serrated threads give these structural screws lag-bolt strength without a pilot hole.
Spax MPN 45818208015243 In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $20.99. Our online price is $22.99.
$22.99
Free shipping on orders over $75
Ships within 24 hours · most orders arrive in about 2 business days

About Product Overview

These SPAX PowerLag structural screws handle wood-to-wood connections that need real holding power, like ledger boards and framing where lag bolts used to be the only option. The washer head spreads load across the surface, and the serrated, self-tapping threads bite in fast without a pilot hole doing all the work.

Each 5/16 x 6 in. screw is carbon steel with a high corrosion resistant finish, so they hold up in indoor or outdoor builds. The T-40 star drive resists cam-out under torque, and a driver bit is included in the pack so you're ready to go.

  • Size: 5/16 in. diameter x 6 in. length
  • Grade 5 carbon steel with high corrosion resistant finish
  • Washer head with serrated, self-tapping threads (not self-drilling)
  • T-40 star drive, bit included
  • 12 screws per clamshell package
  • Made in USA

The Details Specifications

Brand Spax
UPC 712216024359
Case Pack Quantity 5 per case
Retail Unit Quantity 1
Dimensions (L × W × H) 3 × 4 × 8
Weight 1 lbs
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
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