Value Collection 3TSCS04C004 Hex Socket Cap Screw 4-40 Unc

Product Description

The VALUE COLLECTION 3TSCS04C004 is a hex socket cap screw designed for precision fastening in mechanical, electrical, and industrial assemblies. It features a 4-40 UNC thread size and a 1/4 inch length under head, making it well suited for compact, close-tolerance applications. The 3/32 inch hex drive accepts a standard Allen key or hex bit driver. Constructed from 316 stainless steel, this fastener resists corrosion in wet, chemical, and marine environments. It is installed by machinists, electricians, HVAC technicians, and general maintenance trades wherever a low-profile, high-strength fastener is required in a small form factor.

This screw is used in light-gauge panel assemblies, control boxes, electrical enclosures, pump housings, and instrumentation mounts. The 4-40 UNC thread is a common fine-pitch machine screw standard found in electronic chassis, small appliance frames, and precision equipment. The 316 stainless steel material grade makes it a reliable choice for outdoor installations, coastal environments, food-service equipment, and chemical processing applications where standard carbon steel fasteners would corrode prematurely.

Key Features

• 4-40 UNC thread provides a standard, widely compatible machine screw fit
• 1/4 inch length under head suits shallow-clearance and thin-panel installations
• 3/32 inch hex socket drive accepts standard Allen keys and hex bit drivers
• 316 stainless steel construction offers superior corrosion resistance over 304 grade
• Low-profile socket cap head allows flush or near-flush mounting in tight assemblies

Compatibility

Designed as a standard 4-40 UNC hex socket cap screw suitable for use in any application requiring a 4-40 threaded fastener with a 3/32 inch hex drive and 1/4 inch body length.

Installation Notes

Install using a 3/32 inch hex key or Allen driver; do not use an oversized driver as it may strip the socket. Torque to the fastener specification for 4-40 stainless steel as called out in the equipment service documentation. In corrosive or high-moisture environments, inspect threads for galling before reuse, as stainless steel fasteners are susceptible to thread galling if installed dry at high speed. Ensure mating threads are clean and free of debris before driving.