Value Collection 211117P Flat Socket Cap Screw 1/4-20

Product Description

The VALUE COLLECTION 211117P is a flat socket cap screw designed for flush or countersunk fastening applications in metal, wood, and composite assemblies. It features a 1/4-20 UNC thread at 1-3/4 inches overall length and is fully threaded for maximum thread engagement across the full shank. The 82-degree flat head seats flush in standard countersunk holes, and the 5/32-inch hex socket drive accepts a standard hex key or Allen wrench. Manufactured from alloy steel with a black oxide finish, this screw delivers solid mechanical strength with moderate corrosion resistance in dry or lightly protected environments.

This fastener is suited for precision mechanical assemblies, tooling fixtures, machine components, and fabrication work where a low-profile flush head is required. The fully threaded 1/4-20 UNC configuration makes it compatible with standard tapped holes and threaded inserts across a wide range of industrial and general-purpose applications. Installation is typically performed by machinists, millwrights, fabricators, and maintenance technicians working to ASME/ANSI B18.3 and ASTM F835 standards.

Key Features

• 82-degree flat head seats flush in standard countersunk holes for low-profile installations
• 5/32-inch hex socket drive compatible with standard Allen keys and hex bit drivers
• Fully threaded 1/4-20 UNC shank for maximum thread engagement
• Alloy steel construction provides high tensile strength for demanding mechanical applications
• Black oxide finish offers mild corrosion resistance and reduced light reflection
• Meets ASME/ANSI B18.3 and ASTM F835 fastener standards

Compatibility

Designed for standard 1/4-20 UNC tapped holes and countersunk bores machined to 82-degree flat-head specifications, consistent with ASME/ANSI B18.3 tooling requirements.

Installation Notes

Install using a calibrated 5/32-inch hex key or hex bit driver. Ensure the mating countersink is bored to the correct 82-degree included angle before installation to achieve proper head seating. Power down or de-energize any associated equipment before fastener replacement in live assemblies. Do not exceed the rated torque for 1/4-20 alloy steel fasteners as specified in the applicable engineering standard for the assembly.