Gibraltar LBR-123 Quick-release Pin 5/16 in 4130 Steel

Product Description

The GIBRALTAR LBR-123 is a quick-release pin with a button handle, designed for fast, tool-free installation and removal in mechanical assemblies and structural connections. The pin is manufactured from 4130 alloy steel with a zinc-plated finish that provides corrosion resistance in demanding service environments. At 5/16 inch in diameter and 1-1/4 inch usable length, it is suited for medium-duty clevis, linkage, and panel applications where frequent disassembly is required. Installed by mechanics, maintenance technicians, or industrial assembly personnel, this pin handles repeated engagement cycles without deforming the handle or shank.

This pin is used in industrial machinery, mechanical linkages, access panels, jigs, fixtures, and equipment frames where a positive-locking connection is needed without threaded fasteners. The button-style handle allows single-hand operation to depress the spring-loaded ball detent and withdraw the pin. Typical applications include agricultural equipment, conveyor systems, and general fabrication assemblies requiring quick-change connections. The inch-measurement sizing is consistent with standard domestic hardware specifications.

Key Features

• Button handle enables single-hand, tool-free pin removal and insertion
• 4130 alloy steel construction provides high tensile strength for medium-duty load applications
• Zinc-plated finish offers corrosion resistance in shop and outdoor service environments
• 5/16 inch diameter shank fits standard clevis and linkage bores of that dimension
• 1-1/4 inch usable length accommodates typical panel thickness and linkage jaw widths
• Spring-loaded ball detent retains the pin under vibration and dynamic loading

Compatibility

Designed as an OEM-style replacement or direct-fit component for mechanical assemblies requiring a 5/16 inch quick-release pin with a button handle in inch-standard sizing.

Installation Notes

Installation requires no special tools. Ensure the mating bore is clean and free of burrs before inserting the pin to avoid damaging the ball detent. Depressurize or de-energize any connected mechanical, hydraulic, or pneumatic system before removing the pin to prevent uncontrolled movement. Confirm usable length is sufficient to pass fully through both sides of the mating assembly before placing the connection under load.