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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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Description
Hillman 5/16 in. Diameter x 4 in. Length Heat Treated Steel Hex Head Cap Screw, Grade 8, Coarse Thread, 50-PackHillman Grade 8 5 16 in. x 4 in. Hex Cap Screws (50 Pack) Heavy duty Hillman hex head cap screws engineered from heat treated steel for high strength fastening. Grade 8, coarse thread bolts with washer face under the head deliver reliable clamping power for automotive, machinery, and construction projects. Key Features: Grade 8 Strength: Heat treated steel provides superior tensile strength for demanding applications Coarse Thread: Enhances grip and
Hillman Grade 8 5/16 in. x 4 in. Hex Cap Screws (50-Pack)
Heavy-duty Hillman hex head cap screws engineered from heat-treated steel for high-strength fastening. Grade 8, coarse-thread bolts with washer face under the head deliver reliable clamping power for automotive, machinery, and construction projects.
Key Features:
- Grade 8 Strength: Heat-treated steel provides superior tensile strength for demanding applications
- Coarse Thread: Enhances grip and resists stripping in general-purpose fastening
- Washer Face Under Head: Improves load distribution and sealing
- Partially Threaded Shank: Adds shear strength where it matters
- Bulk Value Pack: 50 screws sized 5/16 in. diameter x 4 in. length
Specifications Table:
| Specification | Details |
|---|---|
| Diameter | 5/16 inch |
| Length | 4 inch |
| Material | Steel |
| Finish | Heat Treated (yellow dichromate) |
| Grade | 8 |
| Thread Type | Coarse (USS) |
| Head Style | Hex head with washer face |
| Threading | Partially threaded shank |
| Number in Package | 50 pack |
| Packaging Type | Boxed |
| Use | For use with a nut or tapped hole; tighten with wrench or drill |
| Package Dimensions (L x W x H) | 5.3 in x 4.3 in x 3.2 in |
| Package Weight | 5.2 lb |
Frequently Asked Questions (FAQ):
Q: What size and thread are these bolts?
A: They are 5/16-inch diameter by 4-inch length with coarse threads (USS).
Q: Are these fully threaded?
A: No, they are partially threaded along the shank for added shear strength.
Q: What grade and material are they?
A: Grade 8 heat-treated steel for high-strength applications.
Q: Do they have any special head features?
A: Yes, a washer face under the hex head helps create a better seal and distributes load.
Q: How many bolts are included?
A: 50 bolts per box.
Industrial Strength with Streamlined Utility
These grade 8 hex cap screws evoke a crisp, utilitarian beauty—precision lines and a confident, engineered profile. I love the subtle geometry of the hex head paired with a substantial shank, a quiet nod to performance. Decant them into a clear jar on an open shelf in the workshop for a sculptural, ready-to-work vignette. Strength this considered becomes a staple of refined, hardworking spaces.
Choose Hillman Grade 8 hex cap screws for dependable, high-strength fastening in your next build.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy