Value Collection 33609 Hex Socket Cap Screw 1/4-20 Unc

Product Description

The VALUE COLLECTION 33609 is a hex socket cap screw designed for secure mechanical fastening in industrial, HVAC, plumbing, and electrical panel applications. It features a 1/4-20 UNC thread form with a 2-1/4 inch length under head and accepts a 3/16 inch hex drive. Constructed from alloy steel and finished with a black oxide coating, this fastener delivers solid tensile strength and modest corrosion resistance in dry or lightly oiled environments. It is partially threaded, making it suitable for clamping two or more components with a defined unthreaded shank section. This screw meets ASME/ANSI B18.3 and ASTM A574 standards.

This fastener is suited for a wide range of mechanical assembly work encountered by HVAC technicians, pipefitters, electricians, and maintenance professionals. Typical applications include securing equipment panels, mounting brackets, motor housings, valve bodies, and electrical enclosures where a recessed drive head and controlled clamping load are required. The black oxide finish helps resist fingerprinting and light surface oxidation in indoor service conditions.

Key Features

• 1/4-20 UNC thread size for broad compatibility with standard tapped holes
• 2-1/4 inch length under head for adequate grip in thicker assemblies
• 3/16 inch hex socket drive for use with standard hex keys or Allen drivers
• Partially threaded shank allows precise clamping without thread engagement through full joint depth
• Alloy steel construction meets ASTM A574 mechanical requirements
• Black oxide finish provides light corrosion and abrasion resistance for indoor use

Compatibility

Designed as a standard 1/4-20 UNC hex socket cap screw conforming to ASME/ANSI B18.3 and ASTM A574, compatible with any standard 1/4-20 tapped hole requiring a partially threaded socket head fastener.

Installation Notes

Install using a 3/16 inch hex key or T-handle Allen driver. Ensure the mating tapped hole is clean and free of debris before threading. Power down or de-energize equipment before fastening components in electrical or control panel applications. Do not exceed the rated torque range specified by the assembly engineer or OEM service documentation for this thread size.