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The VALUE COLLECTION R88444391 is a 3/8-16 x 3/4 inch button head machine screw manufactured from 18-8 stainless steel with a bright, uncoated finish. It features a pin-in hex socket drive and a Unified National Coarse (UNC) thread form. The button head profile provides a low-profile, rounded bearing surface suited for applications where clearance or appearance matters. This fastener is appropriate for use in mechanical assemblies, equipment enclosures, panel mounting, and general maintenance work across HVAC, plumbing, electrical, and pool equipment service environments. Licensed tradespeople and maintenance technicians working with corrosion-resistant hardware will find this screw well-suited to demanding field conditions.
This screw is commonly used in light to medium-duty mechanical assemblies where stainless steel corrosion resistance is required. Typical applications include mounting brackets, access panels, equipment frames, and component securing tasks in both indoor and outdoor service environments. The 18-8 stainless steel construction makes it appropriate for humid, wet, or mildly corrosive settings such as pool equipment enclosures or rooftop HVAC installations. Installation requires a pin-in hex socket (tamper-resistant) driver bit sized for a 3/8-inch fastener.
Designed for use in any standard 3/8-16 UNC tapped hole requiring a stainless steel button head fastener. Suitable for general mechanical assembly and equipment service applications across trade disciplines.
Installation requires a pin-in hex socket driver bit compatible with the tamper-resistant drive recess — a standard hex key will not engage this drive type. De-energize or shut down any equipment before fastener service to prevent contact with live electrical or pressurized components. Apply appropriate thread engagement depth based on the base material; 18-8 stainless fasteners can gall if driven too quickly into stainless tapped holes — use slow, steady torque and consider anti-seize compound where re-entry is anticipated. Follow applicable codes and equipment manufacturer guidelines for torque requirements.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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