Value Collection R40694402 Hex Socket Cap Screw 1/4-28

Product Description

The VALUE COLLECTION R40694402 is a 1/4-28 UNF hex socket cap screw manufactured from 18-8 stainless steel. It features a 1/2 inch length under the head and accepts a 3/16 inch hex drive. The 18-8 stainless steel construction offers good corrosion resistance in general industrial, plumbing, and mechanical applications. This fastener is installed using a hex key or Allen driver and is sized for fine-thread applications where vibration resistance and precise thread engagement are required. Electricians, plumbers, HVAC technicians, and general mechanical tradespeople commonly use this type of cap screw when assembling or securing equipment panels, brackets, and mechanical components.

This screw is suited for light-duty to medium-duty fastening tasks in residential and commercial settings. The fine 1/4-28 UNF thread pitch makes it appropriate for applications requiring tighter thread engagement than coarse-thread equivalents. It is commonly used in equipment assembly, control panel mounting, and general mechanical fabrication where a low-profile socket cap head is preferred over a hex bolt or machine screw.

Key Features

• 1/4-28 UNF fine thread for high thread engagement and vibration resistance
• 3/16 inch internal hex drive compatible with standard Allen keys and hex drivers
• 1/2 inch length under head for appropriate grip range in light mechanical assemblies
• 18-8 stainless steel construction for corrosion resistance in general-use environments
• Socket cap head profile provides clearance advantage over standard hex head fasteners

Compatibility

Designed as a standard 1/4-28 UNF hex socket cap screw suitable for general mechanical, HVAC, plumbing, and electrical equipment assembly applications where an 18-8 stainless steel fine-thread fastener is specified.

Installation Notes

Install using a 3/16 inch hex key or hex bit driver; ensure the driver is fully seated before applying torque to avoid stripping the socket. Verify thread compatibility with the mating nut or tapped hole before installation, as 1/4-28 UNF is a fine thread and is not interchangeable with 1/4-20 UNC. De-energize and depressurize any equipment before fastening or removing hardware from live panels or pressurized systems. Follow applicable mechanical and safety codes for the trade and installation type.