Value Collection ST1/4-20X1/2 Hex Bolt 1/4-20 Ss Pack 5

Product Description

The VALUE COLLECTION ST1/4-20X1/2 is a self-sealing hex bolt designed for fastening applications that require a leak-resistant connection. Built from 18-8 stainless steel and passivated for added corrosion resistance, this bolt features a silicone O-ring under the head that compresses on installation to create a fluid and pressure seal at the fastener point. The 1/4-20 UNC thread is fully threaded along the 0.5-inch length under the head. Licensed trades and MRO technicians use these bolts where standard hex bolts would allow fluid or gas ingress through the fastener hole.

This bolt is suited for plumbing, HVAC, and light mechanical assemblies where a sealed fastening point is required. Common applications include mounting brackets, access panels, and equipment covers on systems handling fluids or pressurized media. The 1/4-20 UNC thread is one of the most common fastener sizes in trade work and fits a wide range of tapped holes in aluminum, steel, and polymer components. Sold in a pack of 5, these bolts are well suited for service truck stock or small repair jobs.

Key Features

• 18-8 stainless steel construction with passivation treatment for corrosion resistance
• Silicone O-ring under head creates a leak-resistant seal at the fastener point
• Fully threaded 1/4-20 UNC thread pattern for consistent engagement
• 0.5-inch length under head suits thin-stock mounting applications
• Hex drive head compatible with standard wrenches and sockets
• Pack of 5 for service stock or small-quantity repairs

Compatibility

Designed as an OEM-style replacement or service fastener for any application requiring a 1/4-20 UNC self-sealing hex bolt with a silicone O-ring in stainless steel.

Installation Notes

Installation is performed by hand-threading into a properly tapped or through-hole fitting, then tightening with a standard hex wrench or socket to compress the silicone O-ring. Do not overtighten, as excess torque will deform or extrude the O-ring and compromise the seal. Inspect the O-ring for damage before installation and replace the bolt if the O-ring is cracked or missing. Shut down and depressurize any system before replacing fasteners on pressurized enclosures or fluid-carrying assemblies.