3/8-16 x 3'' self-tapping trailer deck screws, flat head, type F vs 5/16-18 x 3 1/2" self-tapping trailer deck screws, flat head, Type F, T-40 star drive
Overall winner: 3/8-16 x 3'' self-tapping trailer deck screws, flat head, type F
Key Differences
Product A (5/16-18 x 3.5") is positioned in a more affordable price tier and is slightly longer; Product B (3/8-16 x 3") is a thicker diameter intended for heavier fastening needs. Both share the same brand, rating, and similar pros and cons, but A is longer while B offers greater shear strength due to larger diameter
3/8-16 x 3'' self-tapping trailer deck screws, flat head, type F
Self-tapping screws engineered for wood and metal with a Type F point and star drive. Durable hardened steel with black phosphate and oil coating for rust resistance; suitable for trailer decks and floorboard installations. Customers note easy installation and good value
Pros
- self-tapping efficiency
- durable hardened steel
- rust and corrosion resistance
- ease of installation
Cons
- mixed feedback on whether they are self-drilling
- drill accuracy noted as a concern
5/16-18 x 3 1/2" self-tapping trailer deck screws, flat head, Type F, T-40 star drive
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
Head-to-Head
| Criteria | Winner |
|---|---|
| Price | Newport Fasteners |
| Durability | Tie |
| Versatility | Newport Fasteners |
| User Reviews | Tie |