Value Collection MS16997-67 Hex Socket Cap Screw 1/4-20

Product Description

The VALUE COLLECTION MS16997-67 is a partially threaded hex socket cap screw designed for general industrial and mechanical fastening applications. It carries a 1/4-20 UNC thread size and measures 2-1/4 inches in length under the head. The drive is a 3/16-inch internal hex (Allen) socket. Constructed from alloy steel to material grade 4037, the fastener is finished with a yellow cadmium-plate coating that provides corrosion resistance. This screw conforms to ASME B18.3 standards, making it a dependable choice for assemblies that require a reliable socket head fastener.

This screw is suited for machine assemblies, structural fixtures, and equipment maintenance tasks across manufacturing, maintenance, and general industrial environments. The partial threading is appropriate for applications where a non-threaded shank section is needed to bear shear loads or allow precise seating against a mating surface. Installers working in automotive, aerospace-adjacent, or industrial machinery contexts will recognize the 4037 alloy steel grade as a high-strength option relative to standard low-carbon fasteners.

Key Features

• 1/4-20 UNC thread for compatibility with standard unified coarse-thread tapped holes
• 2-1/4-inch length under head with partial threading for shear-load applications
• 3/16-inch hex socket drive reduces cam-out risk compared to external-drive styles
• Alloy steel grade 4037 construction provides elevated tensile strength
• Yellow cadmium-plate finish offers corrosion and oxidation resistance
• Conforms to ASME B18.3 fastener standard

Compatibility

Designed as a standard ASME B18.3 hex socket cap screw for use in any tapped 1/4-20 UNC hole requiring a partially threaded socket head fastener.

Installation Notes

Installation is performed with a 3/16-inch hex key or Allen driver; ensure the driver is fully seated in the socket before applying torque to avoid rounding. Confirm the mating tapped hole is clean and free of debris before installation. Yellow cadmium-plated fasteners should be handled in accordance with applicable workplace safety guidelines due to the cadmium coating. Always follow the assembly drawing or engineering specification for torque requirements, as none are specified here.