Value Collection R56000554 Hex Socket Cap Screw 4-40 Unc

Product Description

The VALUE COLLECTION R56000554 is a hex socket cap screw designed for precision fastening applications requiring a recessed Allen-drive interface. Threaded to 4-40 UNC specification, this screw features a 5/32 inch hex drive and a 5/16 inch length under head. It is manufactured from 316 stainless steel, providing strong resistance to corrosion and oxidation in wet, chemical-exposed, or marine environments. This fastener is suited for instrumentation panels, electrical enclosures, HVAC control assemblies, and light mechanical subassemblies where a clean, flush-socket head is required. Installation is typically performed by mechanical contractors, equipment technicians, and field service professionals.

This screw is commonly used in light-duty fastening tasks across residential and commercial applications, including control panel assembly, electrical equipment mounting, and general mechanical fabrication. The 4-40 UNC thread is a standard fine-pitch coarse designation frequently found in instrument-grade hardware, making it a go-to fastener for precision assemblies in HVAC control boards, sensor brackets, and enclosure hardware. The 316 grade stainless steel construction suits environments where chloride or moisture exposure is a concern.

Key Features

• 4-40 UNC thread size for precision-fit instrument and control applications
• 5/32 inch hex socket drive for use with standard Allen keys or hex bit drivers
• 5/16 inch length under head for low-profile fastening tasks
• 316 stainless steel construction provides corrosion and oxidation resistance
• Socket cap head style allows installation in recessed or confined spaces

Compatibility

Designed as an OEM-style replacement or stock fastener for equipment requiring 4-40 UNC hex socket cap screws in stainless steel construction.

Installation Notes

This fastener is installed using a 5/32 inch hex key or Allen driver. De-energize any electrical equipment before accessing control panels or enclosures where this screw is used. Follow applicable NEC guidelines when working inside energized enclosures. Avoid overtightening in thin sheet metal or plastic standoffs, as 4-40 threads are fine and susceptible to stripping under excessive torque.