1/2 x 3 1/2 Pull Dowel Pin (Threaded Dowel Pin) gives die builders a removable dowel option with the same locating role as a standard machine dowel pin. Pull dowel pin is the catalog term; threaded dowel pin and removable dowel pin are common engineering search terms. A standard dowel in a blind hole has no back side for punch-out access, so the tapped end provides the practical removal path.

This size is often reviewed for machine frames serviced in place, alignment blocks, and removable stops when a standard dowel would be difficult to extract from a blind hole. When a worn precision hole needs its fit restored, 0.001 Oversize Dowel Pins are the related repair option.

For die shops, distributors, and OEM sourcing, Cold Headers can help confirm the diameter, length, and removable dowel style. Review the diameter range, recommended reamed hole size, length, hardness, and removal feature before matching this pull dowel to a die, mold, or fixture record.

Technical Highlights

• Diameter: 0.5001-0.5003 in.
• Length: 3 1/2 in.
• Recommended Hole Size: 0.5000-0.4995 in. reamed
• Removal Feature: Internally tapped one end for a jack screw or slide-hammer puller.
• Hardness: Surface Rc 60 min., Core Rc 47-58
• Interchangeability: Dimensionally interchangeable with standard machine dowel pins
• Dimensional Standard: ASME B18.8.2

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