Hillman 5/16 in. Diameter x 3-1/2 in. Length Hot-Dipped Galvanized Steel Hex Bolt, Coarse Thread, 50-Pack
Regular price $41.99Hillman 5/16 in. x 3-1/2 in. Galvanized Hex Bolts (50-Pack)
Durable Grade 2 steel hex bolts with a hot-dipped galvanized finish for superior corrosion resistance in outdoor and general-purpose applications. Coarse-thread, partially threaded shank delivers strong clamping force for wood-to-wood, wood-to-metal, or metal-to-metal fastening.
Key Features:
- Corrosion Resistant Galvanized Finish: Hot-dipped zinc coating stands up to outdoor and marine environments.
- General-Purpose Strength: Grade 2 steel suitable for most common fastening tasks.
- Coarse Thread Grip: Partially threaded shank reduces shear movement and improves hold between materials.
- Versatile Applications: Ideal for wood, metal, and mixed-material assemblies; pair with matching nuts and washers.
- Bulk Value Pack: 50 bolts per box for convenient stocking on the jobsite or in the shop.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Hillman |
| Finish | Hot Dipped Galvanized |
| Grade | Grade 2 |
| Diameter | 5/16 inch |
| Length | 3-1/2 inch |
| Material | Steel |
| Thread Type | Coarse (UNC) |
| Shank | Partially threaded |
| Number in Package | 50 |
| Packaging Type | Boxed |
Frequently Asked Questions (FAQ):
Q: Are matching nuts and washers included?
A: No. Use nuts and washers of the same grade (Grade 2) and galvanized finish for best results.
Q: Can these bolts be used outdoors?
A: Yes. The hot-dipped galvanized coating provides strong corrosion resistance for exterior use.
Q: What thread type do these bolts have?
A: Coarse thread (UNC).
Q: Do I need to pre-drill holes?
A: Pre-drilling is recommended to ensure proper fit and prevent splitting, especially in wood.
Q: What are the exact dimensions?
A: Diameter: 5/16 inch; Length: 3-1/2 inch; partially threaded shank.
Industrial polish with weatherproof poise
These galvanized hex bolts bring a clean, utilitarian rhythm to outdoor structures and custom furniture alike. I love the subtle sheen of hot-dipped zinc—it feels both rugged and refined. Try them as a deliberate design note on cedar planters or a steel-framed bench, letting the hardware punctuate the composition. They’re the quiet, steadfast detail that elevates everyday builds into enduring luxury.
Outfit your next project with these galvanized hex bolts for reliable, weather-ready fastening that lasts.
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