1/2-13 x 1 1/2'' self-tapping trailer deck screws, flat head vs 5/16-18 x 3 1/2" self-tapping trailer deck screws, flat head, Type F, T-40 star drive

Overall winner: 1/2-13 x 1 1/2'' self-tapping trailer deck screws, flat head

Key Differences

Product A (5/16-18 x 3.5") lists a lower price tier and is aimed at longer deck screws; Product B (1/2-13 x 1 1/2") is shorter, thicker and marketed for both wood and metal use. Both share similar ratings and claim hardened steel and self-tapping efficiency, but B emphasizes wood-and-metal versatility while A emphasizes longer deck-specific length

1/2-13 x 1 1/2'' self-tapping trailer deck screws, flat head

1/2-13 x 1 1/2'' self-tapping trailer deck screws, flat head

Newport Fasteners • ★ 4.2/5 • Mid-Range

Self-tapping Type F trailer deck screws for wood & metal. Hardened steel with black phosphate and oil coating for rust resistance. Customers note good quality, easy installation, and durability, with threading that cuts as claimed

Pros

  • self-tapping threading suitable for wood and metal
  • durable hardened steel construction
  • rust and corrosion resistance coating
  • easy installation noted by customers

Cons

  • mixed opinions on whether they are self-drilling
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5/16-18 x 3 1/2" self-tapping trailer deck screws, flat head, Type F, T-40 star drive

5/16-18 x 3 1/2" self-tapping trailer deck screws, flat head, Type F, T-40 star drive

Newport Fasteners • ★ 4.2/5 • Mid-Range

Self-tapping screws designed for wood and metal deck installations. Hardened steel with black phosphate and oil coating for corrosion resistance; Type F point for efficient thread cutting. Customer insight notes easy installation and durable performance, with positive feedback on quality and value

Pros

  • self-tapping with Type F point
  • works with wood and metal
  • hardened steel with rust resistance
  • ease of installation

Cons

  • mixed confirmation on self-drilling capability
Check current price on Amazon →

Head-to-Head

CriteriaWinner
Price Newport Fasteners
Durability Tie
Versatility Newport Fasteners
User Reviews Tie