Hillman 5/16 in. Diameter x 3 in. Length Grade 5 Heat-Treated Zinc Steel Hex Head Cap Screws, Coarse Thread, 100-Pack
Regular price $59.99Hillman Grade 5 Hex Head Cap Screws, 5/16 in. x 3 in., 100-Pack
These Hillman Grade 5 hex head cap screws deliver reliable fastening strength for heavy-duty projects. Made of heat-treated zinc-plated steel with coarse threads, they’re ideal for securing machinery, automotive, and structural components. The washer face under the head provides a better seal and load distribution.
Key Features:
- Heavy-Duty Strength: Grade 5 heat-treated steel withstands demanding loads
- Corrosion Resistant: Zinc finish helps protect against rust and wear
- Secure Fit: Coarse thread for strong grip in tapped holes with nuts
- Better Seal: Washer face under the head improves load distribution
- Convenient Bulk Pack: 100 screws sized 5/16 in. diameter x 3 in. length
Specifications Table:
| Specification | Details |
|---|---|
| Brand Name | Hillman |
| Material | Steel |
| Finish | Heat Treated Zinc |
| Grade | 5 |
| Diameter | 5/16 inch |
| Length | 3 inch |
| Thread Type | Coarse (USS) |
| Head Type | Hex head with washer face |
| Number in Package | 100 |
| Packaging Type | Boxed |
Frequently Asked Questions (FAQ):
Q: Are these fully or partially threaded?
A: They are partially threaded along the shank, typical of Grade 5 hex cap screws.
Q: What tools are needed for installation?
A: Install with a wrench or socket; a drill with the appropriate driver can be used for faster assembly.
Q: Can these be used outdoors?
A: The zinc finish offers basic corrosion resistance suitable for many indoor and some outdoor applications; for harsh environments, consider stainless or hot-dip galvanized fasteners.
Q: What thread type do they use?
A: Coarse thread (USS) for strong engagement and easier assembly.
Q: Do they include nuts or washers?
A: No, this pack includes only hex head cap screws; purchase compatible nuts and washers separately.
Industrial polish with steadfast performance
These hex cap screws bring a crisp, engineered clarity to any build, marrying strength with a clean zinc sheen. The faceted hex head and washer face read as purposeful detailing—perfect for exposed hardware moments. Pair them with matte black brackets or raw oak to underscore a refined, utilitarian aesthetic. Essential hardware that anchors spaces with confidence and quiet luxury.
Secure your projects with Grade 5 strength—add this 100-pack of Hillman hex cap screws to your cart today.
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