Value Collection 93054 Button Cap Screw 4-40 1/2 in 50pk

Product Description

The VALUE COLLECTION 93054 is a 4-40 button socket cap screw designed for use in mechanical assemblies, panels, and equipment enclosures where a low-profile fastener head is required. It features a hex socket drive sized at 1/16 inch, allowing installation with a standard Allen wrench or hex key driver. Constructed from 18-8 stainless steel with a bright, uncoated finish, it resists corrosion in mildly wet or humid environments. The screw measures 1/2 inch in length under the head and conforms to ANSI/ASME B18.3 and ASTM F837 standards. This package contains 50 screws.

This screw is suited for light-duty fastening applications in HVAC equipment panels, electrical enclosures, plumbing fixtures, and general mechanical assemblies. The 4-40 UNC thread with a Class 3A fit provides a standard close-tolerance engagement. The button head profile keeps the fastener low to the surface, making it practical where clearance is limited or a flush-style appearance is needed. Installers working on sheet metal panels, control boxes, or component brackets will find this size commonly specified.

Key Features

• Button head profile for low-clearance installations
• 1/16 inch hex socket drive compatible with standard Allen keys and hex drivers
• 18-8 stainless steel construction for corrosion resistance in humid environments
• 4-40 UNC right-hand thread with Class 3A fit per ANSI/ASME B18.3
• Bright, uncoated finish — no additional surface treatment
• Packaged in quantities of 50 screws per order unit

Compatibility

Designed as a standard 4-40 UNC button socket cap screw suitable for use in any application requiring an ANSI/ASME B18.3-compliant fastener of this thread size and head type.

Installation Notes

Install with a 1/16 inch hex key or Allen driver. Ensure the mating threaded hole or nut is properly tapped and cleaned before installation. Apply only hand-snug torque initially and verify thread engagement before final tightening. When installing in stainless steel tapped holes, use anti-seize compound to prevent galling.