5/16 x 1/2 Heat Treated Steel Standard Dowel Pin separates alignment from clamping so the bolted joint does not have to carry both jobs. For example, this nominal size measures above nominal; the pin is made big so the fit is made right.

In weld fixtures, stop blocks, and repeatable nests, the hardened ground pin helps repeat location through service, teardown, and rebuild cycles. Bare heat treated steel should be kept oiled in storage and service planning when the environment may promote oxidation.

Cold Headers helps toolrooms, maintenance teams, and industrial distributors locate hard-to-find dowel pin sizes. Review the nominal diameter, measured pin range, recommended hole size, end form, and length before matching this dowel pin to an assembly.

Technical Highlights

• Diameter: 5/16 nominal - measures 0.3126-0.3128 in.
• Length: 1/2 in.
• Material: Heat Treated Steel
• Series: Standard (basic +0.0002 in. over nominal)
• Recommended Hole Size: 0.3125-0.3120 in.
• Hardness: Surface Rc 60 min., Core Rc 47-58
• Ends: one chamfered, one crowned
• Calculated Single Shear: 11,500 lbs
• Dimensional Standard: ASME B18.8.2

Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.