Value Collection B10026 Flat Socket Cap Screw 1-8x3.5in

Product Description

The VALUE COLLECTION B10026 is a flat socket cap screw designed for fastening applications that require a flush or countersunk head profile. The 82-degree flat head seats into a matching countersunk hole, keeping the head surface flush with or below the material surface. A 5/8-inch hex socket drive accepts a standard hex key or Allen wrench. The screw is fully threaded along its 3-1/2-inch length in a 1-8 UNC thread pattern. Made from alloy steel with a black oxide finish, it provides a balance of tensile strength and corrosion resistance suitable for industrial and mechanical assemblies.

This screw is suited for general industrial, mechanical, and structural fastening where a low-profile head is required. Typical applications include machine frames, tooling fixtures, jigs, and equipment housings where the fastener head must not protrude above the work surface. The fully threaded shank allows engagement along the full length, useful when threading into blind holes or when maximum thread engagement depth is needed. Installers in manufacturing, maintenance, and fabrication environments commonly use this size for medium-to-heavy duty assemblies.

Key Features

• 82-degree flat head profile seats flush in standard countersunk holes
• 5/8-inch hex socket drive for Allen wrench or hex bit installation
• Fully threaded 3-1/2-inch length in 1-8 UNC thread standard
• Alloy steel construction for high tensile strength
• Black oxide finish provides moderate corrosion resistance and reduces light reflection
• Meets ASME/ANSI B18.3 and ASTM F835 fastener standards

Compatibility

Designed as a standard inch-series flat socket cap screw compatible with any application requiring a 1-8 UNC thread and a countersunk 82-degree seating angle per ASME/ANSI B18.3.

Installation Notes

Install using a properly sized 5/8-inch hex key or driven hex bit to avoid rounding the socket. Ensure the mating hole is countersunk to the correct 82-degree angle before installation. Degrease mating surfaces and apply thread lubricant or thread-locking compound as required by the application. Follow applicable mechanical and structural fastening codes for torque and engagement depth requirements.