Value Collection ST1/4-20X3/4 Self Sealing Hex Bolt 5pk

Product Description

The VALUE COLLECTION ST1/4-20X3/4 is a self sealing hex bolt engineered for applications where leak prevention at the fastener is critical. Built from 18-8 stainless steel with a passivated finish, this bolt resists corrosion in wet and chemically active environments. It features a silicone O-ring seated under the hex head, which compresses against the mating surface during installation to create a pressure-resistant seal without a separate gasket. The 1/4-20 UNC thread and 3/4 inch length under head make it a compact but capable fastener for light to medium clamping loads. Licensed trades and maintenance professionals working on fluid-handling assemblies, HVAC equipment housings, and mechanical enclosures will find this bolt practical where standard hex fasteners leave gaps for moisture or fluid intrusion.

This bolt is suited for residential and light commercial service work where a metal fastener must also prevent fluid or air migration through a threaded hole. Typical use cases include panel covers on HVAC equipment, access plates on plumbing fixtures, pump housings, and electrical enclosures exposed to moisture. The passivated 18-8 stainless steel construction holds up in outdoor, coastal, and humid indoor environments. The package contains 5 bolts, making it practical for single-unit repairs or small batch jobs without requiring a bulk order.

Key Features

• Integrated silicone O-ring under the hex head creates a seal against the mating surface without a separate gasket
• 18-8 stainless steel construction provides corrosion resistance in wet and chemically exposed environments
• Passivated finish enhances surface corrosion resistance beyond standard stainless
• 1/4-20 UNC thread is one of the most common thread standards in trade fastener applications
• 3/4 inch length under head suits thin panel and cover plate installations
• Sold in a pack of 5, with a minimum order quantity of 1 pack

Compatibility

Designed as an OEM-style replacement or service fastener for any application requiring a 1/4-20 UNC hex bolt with an integrated sealing O-ring, including equipment covers, access panels, and fluid-system housings where leak prevention at the fastener is required.

Installation Notes

Installation requires a standard hex wrench or socket sized for a 1/4-20 hex bolt head. Power down or depressurize the system before removing or replacing any fastener on an active fluid or air system. Do not overtighten, as excess torque can deform or extrude the silicone O-ring and compromise the seal. Fastener installation in fluid-handling or pressurized systems should follow applicable codes and the equipment manufacturer's service documentation.