Value Collection R88444318 1/4-20 X 1-1/2 Button Screw

Product Description

The VALUE COLLECTION R88444318 is a 1/4-20 x 1-1/2 inch button head machine screw made from 18-8 stainless steel with a bright, uncoated finish. It uses a pin-in hex socket drive and is threaded to Unified National Coarse (UNC) standards. The low-profile button head reduces snag points in assemblies where clearance is limited. Length is measured from under the head to the tip. This fastener is suited for mechanical assembly work in corrosion-prone environments and is installed by machinists, millwrights, HVAC technicians, and general trade professionals.

This screw is appropriate for light to medium-duty fastening applications in residential and commercial settings. The 18-8 stainless steel construction resists rust and oxidation, making it a practical choice for outdoor equipment enclosures, HVAC panels, pump housings, and similar installations where moisture exposure is a concern. The UNC thread form is the most common inch-series thread standard, ensuring broad tool and nut compatibility across typical trade applications.

Key Features

• Button head profile reduces protrusion and snag risk in tight assemblies
• Pin-in hex socket drive for tamper-resistance in secured enclosures
• 18-8 stainless steel construction provides corrosion and oxidation resistance
• UNC thread standard ensures broad compatibility with standard inch-series hardware
• Bright, uncoated finish — no coating to chip, flake, or interfere with fit
• Length measured from under the head, per standard fastener convention

Compatibility

Designed as a standard 1/4-20 UNC inch-series machine screw compatible with any tapped hole, threaded insert, or nut conforming to the 1/4-20 Unified National Coarse thread specification.

Installation Notes

Installation requires a pin-in hex socket bit of the correct size — standard hex keys will not engage the pin-in drive properly. Power down or de-energize any equipment before fastening or removing screws on electrical enclosures or control panels. Stainless steel fasteners are susceptible to galling; apply anti-seize compound to threads when torquing into stainless or aluminum tapped holes to prevent thread seizure. Follow applicable mechanical and electrical codes for fastener selection in structural or code-governed assemblies.