Value Collection -93109-1 Button Cap Screw 1/4-20 1-3/4in 50pk

Product Description

The VALUE COLLECTION -93109-1 is a 1/4-20 button socket cap screw designed for fastening applications that require a low-profile head and strong corrosion resistance. The screw features a hex socket drive sized at 5/32 and is fully threaded along its 1-3/4 inch length under head. Constructed from 18-8 stainless steel with a bright, uncoated finish, it resists rust and works well in wet, outdoor, or chemically active environments. This fastener conforms to ANSI/ASME B18.3 and ASTM F837 standards and carries a Class 3A thread fit for reliable engagement with mating threads. Sold in a pack of 50.

This button socket cap screw is suited for mechanical assemblies, equipment panels, and structural connections where a flush or low-profile head is required. The UNC thread form makes it compatible with standard inch-series tapped holes and nuts. It is commonly installed in light industrial, HVAC equipment, marine, and general trade applications. The stainless steel construction makes it a practical choice for installations exposed to moisture or corrosive conditions where a zinc-plated fastener would be inadequate.

Key Features

• 1/4-20 UNC thread, fully threaded, Class 3A fit for secure engagement
• 1-3/4 inch length under head for medium-depth fastening applications
• Button head profile provides low clearance in tight assemblies
• 5/32 hex socket drive for standard Allen wrench or hex bit installation
• 18-8 stainless steel with bright, uncoated finish for corrosion resistance
• Meets ANSI/ASME B18.3 and ASTM F837 fastener standards

Compatibility

Designed as a standard UNC inch-series button socket cap screw compatible with 1/4-20 tapped holes and mating hardware conforming to ANSI/ASME B18.3 specifications.

Installation Notes

Install using a 5/32 hex key or hex socket bit; ensure the mating hole is properly tapped to 1/4-20 UNC before driving the fastener. De-energize any equipment and follow lockout/tagout procedures before replacing fasteners in live assemblies. Avoid over-torquing stainless steel fasteners, as the material is susceptible to galling; applying an appropriate anti-seize compound to the threads is recommended in high-friction or high-temperature installations. Follow applicable mechanical codes and manufacturer torque guidelines for the assembly being serviced.