Value Collection SF043039 Precision Dowel Pin 5/16x1 in Grade 8

Product Description

The VALUE COLLECTION SF043039 is a precision dowel pin designed for accurate alignment and location of mating components in mechanical assemblies. Machined from alloy steel to Material Grade 8, this pin measures 5/16 inch in diameter and 1 inch in overall length, with a diameter tolerance held to 0.0002 inches for tight, repeatable fits. One end is beveled for guided entry and one end is rounded, easing insertion into bored holes. Hardness is rated at 50-58 HRC, giving the pin strong resistance to wear and deformation under load. Machinists, tool and die technicians, and maintenance mechanics install these in production fixtures, jigs, molds, and precision assemblies.

Precision dowel pins of this size are commonly used in industrial and manufacturing environments where close-tolerance hole alignment is required. Typical applications include fixture building, die sets, machine tool components, and hydraulic manifold assemblies where positional accuracy between mating parts must be maintained through repeated cycles. The double-shear breaking strength rating of 20,000 pounds makes this pin suitable for assemblies that carry significant shear loads across the pin body.

Key Features

• 5/16 inch diameter with a tight 0.0002 inch diameter tolerance for precision location fits
• 1 inch overall length suits a wide range of standard plate and block thicknesses
• Alloy Steel Grade 8 construction with 50-58 HRC hardness for wear resistance
• One beveled end and one rounded end for easier installation and removal
• Double-shear breaking strength of 20,000 pounds for high-load applications
• Conforms to ASME B18.8.2 dimensional standard for interchangeability

Compatibility

Designed as an OEM-style and aftermarket replacement precision dowel pin conforming to ASME B18.8.2, suitable for use in any fixture, jig, die set, or mechanical assembly requiring a 5/16 inch diameter precision locating pin.

Installation Notes

Precision dowel pins are installed by machinists and tool and die technicians using a press or mallet into reamed holes sized to the appropriate interference or transition fit per design specification. Always deburr and clean the receiving hole before pressing the pin to avoid galling or damage to the bore. Ensure the assembly is fully de-energized and secured before pin removal or installation in any powered fixture or machine. Refer to applicable shop standards and ASME guidelines for recommended hole tolerances and fit classifications.