Hillman 9/16 in. Diameter x 1-1/2 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screws, 25-Pack
Regular price $51.99Hillman Grade 8 Hex Head Cap Screws, 9/16 in. x 1-1/2 in., 25-Pack
Heavy-duty hex head cap screws crafted from heat-treated Grade 8 steel for high-strength fastening. Ideal for machinery, automotive, and structural applications requiring high torque and wear resistance.
Key Features:
- Grade 8 Strength: Heat-treated steel construction delivers superior tensile strength for demanding applications
- Reliable Seal: Washer face under head improves load distribution and seating
- High Torque Capability: Hex cap head with machine threads supports secure, wrench-driven tightening
- Corrosion-Resistant Finish: Yellow dichromate treatment enhances wear and corrosion resistance
- Bulk Value: 25 screws per box for jobsite or shop efficiency
Specifications Table:
| Specification | Details |
|---|---|
| Diameter | 9/16 inch |
| Length | 1-1/2 inch |
| Material | Steel |
| Grade | Grade 8 (USS) |
| Finish | Heat-treated, yellow dichromate |
| Head Style | Hex cap head with washer face |
| Thread Type | Coarse machine thread |
| Thread Coverage | Partially threaded shank |
| Pieces per Package | 25 |
| Packaging Type | Boxed |
| Intended Use | Use with a nut or in a tapped hole; tighten with wrench or drill |
Frequently Asked Questions (FAQ):
Q: Are these fully threaded?
A: No. They are partially threaded along the shank, per USS Grade 8 design.
Q: What thread type do they use?
A: Coarse machine threads.
Q: What tools are needed for installation?
A: Tighten using a wrench or a drill/driver with the appropriate hex socket.
Q: What is the finish?
A: Heat-treated, yellow dichromate finish for added strength and wear resistance.
Q: How many are included?
A: 25 pieces per retail package.
Industrial Strength, Clean Precision
These Grade 8 cap screws bring a quiet authority to any build—sleek, purposeful, and beautifully engineered. The hex head and washer face feel sculptural, creating a crisp junction between metal planes. Style them with matte-black hardware and oiled oak for a nuanced, workshop-chic narrative. A small detail with a luxe impact, they anchor your vision with unwavering strength.
Upgrade your fasteners to Grade 8 performance—add this 25-pack to your cart and build with confidence.
All third party trademarks, including logos and icons, referenced on our website and product pages remain the property of their respective owners. Unless specifically identified as such, Arbor's use of third party trademarks does not indicate any relationship, affiliation, sponsorship, or endorsement between Arbor Home and the owners of these trademarks. Any references by Arbor Home to third party trademarks are to identify the corresponding third party goods.
