Hillman 9/16 in. Diameter x 3 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screws, 25-Pack
Regular price $73.99Hillman Grade 8 Hex Head Cap Screws, 9/16 in. x 3 in., 25-Pack
Heavy-duty Hillman grade 8 hex head cap screws deliver high torque capability and reliable clamping power for structural and automotive applications. Heat-treated steel with a yellow dichromate-style finish enhances strength and wear resistance, while the washer face under the head helps create a better seal.
Key Features:
- Grade 8 Strength: Heat-treated steel for superior tensile strength in demanding applications
- Hex Head + Machine Threads: Enables high torque tightening with a wrench or driver
- Washer Face Under Head: Helps improve bearing surface and sealing
- Partially Threaded Shank: Adds shear strength where clamping force is needed
- Bulk Value: 25-piece retail pack for project or shop use
Specifications Table:
| Specification | Details |
|---|---|
| Diameter | 9/16 inch |
| Length | 3 inch |
| Material | Steel |
| Finish | Heat-treated; yellow dichromate-style wear resistance |
| Grade | Grade 8 (USS) |
| Head Type | Hex cap head with washer face under head |
| Thread Type | Coarse machine threads |
| Thread Coverage | Partially threaded shank |
| Number in Package | 25 pack |
| Packaging Type | Boxed |
| Unit of Measurement | Imperial (size listed in inches) |
Frequently Asked Questions (FAQ):
Q: What size are these bolts?
A: They are 9/16 inch diameter by 3 inch length, coarse thread.
Q: Are these fully threaded?
A: No. They are grade 8 bolts that are partially threaded along the shank.
Q: What tools are recommended for installation?
A: Tighten using a wrench or a compatible driver on the hex head.
Q: What is the material and finish?
A: Heat-treated steel with a yellow dichromate-style finish for added wear resistance.
Q: How many are included?
A: 25 screws per package.
Industrial Strength, Refined Finish
These hex cap screws bring a polished, utilitarian edge to any project—quietly powerful, impeccably precise. The yellow dichromate sheen lends a subtle glow, elevating hardware from purely functional to thoughtfully considered detail. Style them with blackened steel brackets or warm woods to balance toughness with texture. A steadfast essential, they anchor spaces—and ideas—with luxury-grade reliability.
Power your build with grade 8 confidence—add this 25-pack of Hillman hex head cap screws to your cart today.
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