Value Collection MS16997-64 Hex Socket Cap Screw 1/4-20

Product Description

The VALUE COLLECTION MS16997-64 is a hex socket cap screw designed for precise, high-torque fastening in mechanical assemblies and structural applications. It features a 1/4-20 UNC thread size with a 1-1/2 inch length under the head and a 3/16 inch hex drive socket. Manufactured from 4037 alloy steel, the screw carries a yellow cadmium-plated finish that provides corrosion resistance in moderate-exposure environments. This fastener is partially threaded and conforms to ASME B18.3 standards. It is installed by machinists, millwrights, and maintenance technicians using a standard hex key or Allen driver.

This cap screw suits general industrial maintenance, OEM equipment assembly, and repair applications where a recessed hex drive is required for flush or low-profile installation. The 1/4-20 UNC thread is a common size across a wide range of mechanical and structural assemblies. The yellow cadmium coating makes it identifiable at a glance and suitable for use in environments where mild corrosion resistance is needed. It is sold in minimum order quantities of 5 units.

Key Features

• 1/4-20 UNC thread form, partially threaded for controlled engagement depth
• 1-1/2 inch length under head suits moderate material thickness applications
• 3/16 inch hex socket drive for use with standard Allen or hex key tools
• 4037 alloy steel construction provides high tensile strength
• Yellow cadmium-plated finish offers corrosion resistance and visual identification
• Conforms to ASME B18.3 fastener standard

Compatibility

Designed as an OEM-style replacement or maintenance fastener for assemblies requiring a 1/4-20 UNC hex socket cap screw per ASME B18.3 specification.

Installation Notes

Install using a 3/16 inch hex key or Allen wrench; ensure the drive tool is fully seated before applying torque to avoid rounding the socket. Verify thread engagement in the mating material before final tightening. Yellow cadmium plating contains hazardous materials — follow applicable safety and disposal regulations when handling or machining these fasteners. Partial threading requires the unthreaded shank to clear any gap between mating parts before thread engagement begins.