Hillman 5/16 in. Diameter x 3/4 in. Length Grade 5 Heat-Treated Zinc Steel Hex Head Cap Screws, Coarse Thread (100-Pack)
Regular price $24.99Hillman 5/16 in. x 3/4 in. Grade 5 Hex Cap Screws (100-Pack)
These Hillman hex head cap screws are Grade 5 steel with a heat-treated zinc finish for strength and wear resistance. Coarse-threaded and partially threaded, they’re ideal for fastening into tapped holes or with nuts in general construction and repair.
Key Features:
- Grade 5 Strength: Heat-treated steel delivers reliable tensile strength for demanding applications
- Corrosion-Resistant Finish: Zinc coating helps protect against rust and wear
- Coarse Thread, Partially Threaded: Ensures strong hold and easier starts in tapped holes
- Washer Face Under Head: Provides a better seal and load distribution
- Bulk Value Pack: 100 screws sized 5/16 in. diameter x 3/4 in. length for projects and maintenance
Specifications Table:
| Specification | Details |
|---|---|
| Diameter | 5/16 inch |
| Length | 3/4 inch |
| Material | Steel |
| Finish | Heat Treated Zinc |
| Grade | 5 |
| Thread Type | Coarse (USS) |
| Threading | Partially threaded shank |
| Head Type | Hex head with washer face |
| Number in Package | 100 pack |
| Packaging Type | Boxed |
| Use | For use with a nut or in a tapped hole; tighten with wrench or drill |
Frequently Asked Questions (FAQ):
Q: Are these fully or partially threaded?
A: They are partially threaded along the shank with a coarse thread.
Q: What grade are these bolts?
A: Grade 5, suitable for many automotive, machinery, and general fastening uses.
Q: Can I use them outdoors?
A: The zinc finish offers basic corrosion resistance, but for harsh or marine environments consider galvanized or stainless hardware.
Q: What tools are needed for installation?
A: Tighten with a wrench or a drill/driver with the appropriate hex socket.
Q: Do they include nuts or washers?
A: No, this pack includes only hex head cap screws.
Industrial polish with everyday reliability
A crisp hex head in a cool zinc tone brings an understated, utilitarian elegance to built-ins and workshop fixtures. I love the washer-faced head—such a thoughtful detail that sits flush and clean. Pair these with matte-black brackets or raw oak shelving to strike a refined, hardworking contrast. It’s the quiet hardware hero that makes a space feel intentionally crafted.
Equip your project with Grade 5 strength—add this 100-pack to your cart and fasten with confidence.
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