Hillman 5/16 in. Diameter x 3 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screws, Coarse Thread, 100-Pack
Regular price $79.99Hillman Grade 8 Hex Cap Screws, 5/16" x 3", 100-Pack
Heavy-duty Grade 8 hex head cap screws built from heat-treated steel for demanding fastening applications. Coarse-threaded with a washer face for secure seating and long-lasting performance. Ideal for machinery, automotive, and construction projects.
Key Features:
- Heavy-Duty Grade 8: Engineered for high-strength applications and superior load-bearing performance
- Heat-Treated Steel: Enhanced durability and wear resistance for long service life
- Coarse Thread: Reliable grip and faster assembly in tapped holes or with nuts
- Washer Face Under Head: Better seal and seating against surfaces to reduce loosening
- Bulk Value Pack: 100 screws sized 5/16 in. diameter x 3 in. length
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Hillman |
| Product Type | Hex Head Cap Screws |
| Diameter | 5/16 inch |
| Length | 3 inch |
| Material | Steel |
| Finish | Heat Treated (yellow dichromate referenced) |
| Grade | 8 |
| Thread Type | Coarse |
| Threading | Partially threaded along shank |
| Head Style | Hex head with washer face under head |
| Number in Package | 100 pack |
| Packaging Type | Boxed |
| Tightening Method | Wrench or drill |
| Package Height | 3.2 in |
| Package Width | 4.3 in |
| Package Length | 5.3 in |
| Package Weight | 7.6 lbs |
Frequently Asked Questions (FAQ):
Q: Are these fully or partially threaded?
A: They are partially threaded along the shank.
Q: What tools are recommended for installation?
A: Tighten with a wrench or a drill fitted with the appropriate hex socket.
Q: What is the thread type?
A: Coarse thread.
Q: What material and finish do they have?
A: Made of heat-treated steel; yellow dichromate style finish referenced for strength and wear resistance.
Q: Can these be used in automotive or machinery applications?
A: Yes, as Grade 8 heat-treated steel hex cap screws, they are suitable for high-stress applications in automotive and machinery.
Industrial Strength with Clean, Purposeful Lines
These hex cap screws bring a refined, utilitarian elegance to any build—sleek heads and crisp geometry that read as confident and modern. The heat-treated Grade 8 steel delivers a commanding presence and resilience. Style them with blackened hardware and raw oak shelving to underscore a crafted, industrial vibe. Essential, functional, and impeccably strong—this is hardware that elevates the everyday.
Secure your projects with trusted Grade 8 strength—add this Hillman 100-pack to your toolkit today.
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