Value Collection 33602 Hex Socket Cap Screw 1/4-20 Unc

Product Description

The VALUE COLLECTION 33602 is a 1/4-20 UNC hex socket cap screw designed for precision fastening in mechanical, structural, and equipment assembly applications. The screw features a 3/16-inch hex drive socket and a 3/4-inch length under head with full threading along the entire shank. Constructed from alloy steel and finished with a black oxide coating, it provides solid mechanical strength with moderate corrosion resistance in dry or lightly oiled environments. This fastener meets ASME/ANSI B18.3 and ASTM A574 standards, making it appropriate for applications where dimensional and tensile consistency are required. Machinists, millwrights, and maintenance technicians commonly use this screw type in equipment panels, fixtures, and machine assemblies.

This hex socket cap screw is suited for general industrial and mechanical assembly tasks where a flush or recessed fastener head profile is needed. The 1/4-20 UNC thread form is one of the most common unified coarse thread standards, compatible with a wide range of tapped holes, threaded inserts, and standard nuts across manufacturing, HVAC equipment assembly, and general maintenance work. The black oxide finish reduces surface reflectivity and provides light surface protection.

Key Features

• 1/4-20 UNC fully threaded shank for maximum thread engagement
• 3/4-inch length under head suits medium-depth fastening applications
• 3/16-inch hex socket drive for use with standard Allen or hex key tools
• Alloy steel construction meets ASTM A574 tensile requirements
• Black oxide coating provides light corrosion resistance and low reflectivity
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed for use in any application requiring a 1/4-20 UNC socket head cap screw with a 3/4-inch grip length, including equipment enclosures, mechanical fixtures, and machine component assemblies.

Installation Notes

Installation requires a 3/16-inch hex key or Allen driver. Ensure the receiving hole is properly tapped to 1/4-20 UNC before driving the fastener. Do not overtighten, as alloy steel cap screws in softer base materials can strip threads. Clean and inspect the threaded hole for debris before installation.