5/16-18 X 2-1/2" Socket Cap Screws | Flat Head Hex Socket Drive | Alloy Steel Thermal Black Oxide (100 / Pkg.)
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Product details
| Management number | 242128387 | Release Date | 2026/07/19 | List Price | $18.21 | Model Number | 242128387 | ||
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Cap Screws Flat Socket Alloy Thermal Black Oxide 5/16-18 X 2 1/2 are high-strength fasteners designed for dependable assembly in machinery, automotive, and industrial equipment. Featuring a flat socket head, these cap screws sit flush to maintain a clean, professional finish in tight spaces.
Constructed from alloy steel and finished with a thermal black oxide coating, they combine strength with a durable, low-gloss appearance suitable for wet, oily, or dusty environments where corrosion protection is adequate for standard industrial use.
Key Features
- Thread size: 5/16-18 UNC
- Length: 2-1/2 inches
- Flat socket head cap screw
- Material: Alloy steel
- Finish: Thermal black oxide
Specifications
- Thread: 5/16-18 UNC
- Length: 2-1/2 in
- Head style: Flat socket
- Drive type: Hex socket
- Material: Alloy steel
- Finish: Thermal black oxide
Applications
- Machinery assembly
- Automotive and heavy equipment
- Industrial manufacturing and maintenance
Why choose these cap screws? They provide a strong, reliable fastening solution with a low-profile head that reduces snag risk in confined spaces. The thermal black oxide finish adds a durable, professional appearance and helps conceal wear over time. Ideal for standard industrial environments where 5/16-18 UNC threads and 2-1/2" length are required.
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