3/8-16 x 1 1/2'' self-tapping trailer deck screws vs 5/16-18 x 3 1/2" self-tapping trailer deck screws, flat head, Type F, T-40 star drive
Key Differences
Product A (5/16-18 x 3.5") lists a lower price tier and is a longer screw suited for deeper decking or thicker trailer panels; Product B (3/8-16 x 1-1/2") is a thicker, shorter screw better for wood-to-metal attachments where a larger thread and shorter length are preferred. Both share the same brand, rating, and similar pros/cons about self-tapping claims and corrosion resistance
3/8-16 x 1 1/2'' self-tapping trailer deck screws
Self-tapping, flat head screws with Type F point for wood and metal. Hardened steel with black phosphate and oil coating for rust resistance; suitable for trailer deck installations and heavy-duty projects. Customers report easy installation, durability, and good value
Pros
- self-tapping efficiency
- works in wood and metal
- hardened steel with rust resistance coating
- durable and easy to install
Cons
- mixed feedback on whether they are self-drilling
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 |