Holo-krome 02057 Dowel Pin 6x40mm Alloy Steel Grade 8

Product Description

The HOLO-KROME 02057 is a standard dowel pin manufactured from Grade 8 alloy steel with a black luster finish. This pin measures 6 mm in diameter and 40 mm in overall length, with one beveled end and one rounded end for guided insertion and positive seating. It is designed for precision alignment and fastening applications in mechanical assemblies. Diameter tolerance is held to -0.0001 to 0.0001 inches, making it suitable for tight-tolerance press-fit and slip-fit holes. Machinists, tool and die makers, and maintenance technicians install this pin in production fixtures, jigs, and mechanical components requiring repeatable positional accuracy.

This dowel pin is used in industrial and commercial manufacturing environments where precise component alignment is critical. Typical applications include machine frames, die sets, fixture plates, and precision assemblies where mating parts must register consistently across assembly and disassembly cycles. The black luster finish provides a degree of corrosion resistance suitable for shop and indoor industrial use. This pin conforms to ASME B18.8.5M and DIN 6325 standards, making it a recognized specification fastener across domestic and international engineering projects.

Key Features

• Grade 8 alloy steel construction for high shear strength in press-fit applications
• 6 mm diameter with diameter tolerance of -0.0001 to 0.0001 inches for precision fitment
• 40 mm overall length with one beveled end and one rounded end for easy installation
• Black luster finish for added surface protection in indoor industrial environments
• Conforms to ASME B18.8.5M and DIN 6325 fastener standards

Compatibility

Designed as an OEM-style precision fastener for use in standard 6 mm diameter dowel pin holes in mechanical assemblies conforming to ASME B18.8.5M and DIN 6325 specifications.

Installation Notes

Installation is typically performed by machinists or mechanical technicians using an arbor press or dead-blow mallet for press-fit applications. Ensure the receiving bore is clean, properly sized, and deburred before installation. Depressurize, de-energize, or fully disassemble the host assembly before driving or extracting dowel pins to prevent injury and part damage. Do not use impact tools that may deform the pin head or distort the bore.