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SPAX 5/16 x 4" T-Star Washer Head HCR PowerLag Screw

Altenloh, Brink & Co ★ 4.2/5 · ItemOracle Score Mid-Range

$40 USD
Price subject to change
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SPAX 4581820801005 5/16 x 4" T-Star Drive Washer Head Black HCR (Exterior) PowerLag Screw (50 Pieces per Box)

T-Star washer head wood screws with HCR coating for exterior treated lumber. Patented thread tech enables driving without pre-drilling and strong pullout resistance, suited for interior and exterior applications. Customers note high quality and ease of use

Highlights

  • HCR coating for exterior durability
  • Patented thread technology, no pre-drilling
  • Built-on washer head for finished look

Pros

  • T-Star washer head design for low-profile finish
  • HCR coating for exterior/treated lumber
  • No pre-drilling required due to patented thread technology
  • High pullout resistance and strong mounting
  • Works for multiple applications

Cons

  • Partial thread type noted
  • Requires specific drive bit size (T-40)
  • Limited to 50 pieces per box

Best For

  • exterior deck mounting
  • pressure-treated lumber projects
  • patio and outdoor structures
  • flush-mitted mounting of flat surfaces
  • woodworking with high pullout resistance needs
  • impact driver applications

Features

  • T-Star washer head screws with HCR coating for exterior, treated lumber use
  • Grade 5 heat-treated for increased strength and reduced breakage
  • Patented SPAX thread enables no pre-drilling and faster drive
  • Built-on washer head provides low-profile finish and eliminates separate washer
  • Dimensions: 5/16 x 4 inches, T-40 drive, partial thread; 50 pieces per box

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