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5/16-18 X 2-1/2" Socket Cap Screws Flat Head Hex Socket Drive Alloy Steel Thermal Black Oxide (100 / Pkg.) Order Now
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5/16-18 X 2-1/2″ Socket Cap Screws Flat Head Hex Socket Drive Alloy Steel Thermal Black Oxide (100 / Pkg.) Order Now

Original price was: $40.95.Current price is: $21.29.

For orders under $150.00, a shipping fee of $12.99 applies.

SKU: SKHWTA00NW2 Category: Tag:
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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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