Value Collection 548691BR Dowel Pin 20x90mm Alloy Steel

Product Description

The VALUE COLLECTION 548691BR is a flat vent pull out dowel pin engineered for precision locating and alignment applications in industrial and mechanical assemblies. Manufactured from alloy steel and hardened to 57-63 HRC, this pin delivers the wear resistance and dimensional stability required in demanding production environments. It measures 20 millimeters in diameter and 90 millimeters in overall length, conforming to DIN 7979D standards. One end is rounded and the opposite end is threaded, allowing controlled extraction from blind holes without damaging the mating bore or surrounding workpiece.

This dowel pin is suited for use in fixture building, tooling, die sets, and precision machine assembly where repeatable registration between mating components is critical. The flat vent groove along the pin body allows air and lubricant to escape during press-in installation, preventing hydraulic lock and reducing the force required to seat the pin. It is commonly installed by tool and die makers, machinists, and maintenance technicians working with close-tolerance assemblies in manufacturing and heavy industrial settings.

Key Features

• DIN 7979D standard compliance ensures dimensional interchangeability with matching bores
• 57-63 HRC hardness rating provides high wear resistance and long service life in locating applications
• Flat vent groove prevents hydraulic lock during press-in installation into blind holes
• Threaded extraction end allows controlled removal with a standard slide hammer or puller
• Rounded opposite end facilitates alignment and guided insertion into close-tolerance bores
• Alloy steel construction supports use in high-load and high-cycle tooling environments

Compatibility

Designed as a DIN 7979D-conforming flat vent pull out dowel pin for use in precision tooling, fixture, and machine assembly applications requiring a 20 millimeter nominal bore diameter.

Installation Notes

Installation is typically performed by machinists or tool and die technicians using an arbor press or mallet with a suitable driving tool. Ensure the mating bore is clean, dimensioned to the correct tolerance class per DIN 7979D, and lightly lubricated before pressing the pin into position. The threaded end must remain accessible for future extraction using an appropriate puller or slide hammer. Depressurize or de-energize any associated equipment before servicing components that contain these pins.