Value Collection ST1/2-13X1 Self Sealing Hex Bolt

Product Description

The VALUE COLLECTION ST1/2-13X1 is a self sealing hex bolt engineered for applications where leak-free fastening is required. Built from 18-8 stainless steel and passivated for corrosion resistance, this bolt integrates a silicone O-ring under the head to create a positive fluid seal when torqued against a mating surface. The 1/2-13 UNC thread pattern and 1 inch length under head make it a direct fit for standard tapped holes in plumbing panels, enclosures, fluid system assemblies, and similar trade installations. Sold in a pack of 5, this fastener is suitable for HVAC, plumbing, and general mechanical service work where stainless hardware is specified.

This bolt is commonly used in fluid-handling systems, equipment enclosures, and mechanical assemblies where a watertight or pressure-tight fastener connection is required. The silicone O-ring provides a reliable seal against water, mild chemicals, and common HVAC and plumbing fluids. The passivated 18-8 stainless steel construction resists oxidation in damp or corrosive environments, making this bolt a practical choice for both indoor mechanical rooms and outdoor equipment installations.

Key Features

• Integrated silicone O-ring under head creates a leak-resistant seal at the fastener seat
• 18-8 stainless steel construction with passivation treatment for corrosion resistance
• 1/2-13 UNC thread pattern compatible with standard tapped holes and hex nuts
• 1 inch length under head suits typical panel thickness and equipment flange applications
• Hex drive head allows installation with standard 3/4 inch wrench or socket
• Pack of 5 per order quantity for service stock or single-job use

Compatibility

Designed as an OEM-style replacement or service fastener for mechanical assemblies requiring a 1/2-13 UNC self sealing hex bolt with a silicone O-ring seal.

Installation Notes

Installation should be performed by a qualified mechanical, plumbing, or HVAC technician. De-energize and depressurize the system before removing or installing fasteners in fluid-carrying assemblies. Avoid over-torquing, as excessive force can deform the silicone O-ring and compromise the seal. Inspect the mating seating surface for damage or debris before installation to ensure proper O-ring contact and leak-free performance.