Gibraltar Z1228 Flat Vent Pull Out Dowel Pin 0.5x2.5 in

Product Description

The GIBRALTAR Z1228 is a flat vent pull out dowel pin machined from case-hardened C1215 steel. It measures 0.5 inches in diameter and 2.5 inches in overall length, with a diameter tolerance held to 0.0001 to 0.0003 inches for precise fitment in close-tolerance bores. One end is beveled for ease of insertion; the opposite end is threaded to allow extraction from blind holes. This pin is used in mechanical assemblies where a secure, removable locating or alignment solution is required. Machinists, millwrights, and maintenance technicians are the typical installers.

This dowel pin is suited for industrial and mechanical maintenance applications where accurate part alignment or positioning must be maintained and the pin must be retrievable from a blind bore. The flat vent groove runs along the body to allow air and lubricant to escape during installation, preventing hydraulic lock. Its case-hardened C1215 steel construction provides a hard wear surface while retaining a tough core, making it appropriate for moderate-load alignment tasks in machine tools, jigs, fixtures, and general mechanical assemblies.

Key Features

• Flat vent groove allows air and fluid relief during press-in installation, preventing hydraulic lock
• One beveled end for guided insertion into the bore
• One threaded end for pull-out extraction from blind holes
• Case-hardened C1215 steel provides a hard surface with a tough core
• Tight diameter tolerance of 0.0001 to 0.0003 inches for close-fit alignment applications
• Single-piece package, order quantity of one

Compatibility

Designed as a standard flat vent pull out dowel pin for use in jigs, fixtures, machine tools, and general mechanical assemblies requiring a 0.5-inch diameter locating or alignment pin that can be removed from blind bores.

Installation Notes

Installation and removal of dowel pins should be performed by a qualified machinist or maintenance technician. De-energize and lock out all machinery before servicing any assembly containing this pin. Use an appropriate press or extraction tool sized to the pin diameter; do not strike the threaded end with a hammer. Verify bore diameter and surface finish before installation to ensure the specified tolerance fit is maintained.