Threaded Dowel Pin Specifications

Body and hole dimensions.

Threaded dowel pin specifications. Grade 8 hex cap screw. Many dowel pins have flat ends on both sides. The following chart is of machine dowel pins chart per. Threaded taper pins have external threads on the large diameter end.

They are effective in blind holes that have been taper reamed. A dowel pin is a type of fastener used to hold an object in place. To remove thread a screw or tool into the tapped hole then pull the pin out. And oversize series having basic diameters 0 001 inch over the nominal diameter intended for replacement use.

Spiral vent pull out dowel pins a spiral groove cut into these pins relieves trapped air but stays in 360 contact with the hole for a secure fit that s easy to insert in and remove from blind holes. Oversized dowel pins are manufactured slightly over the nominal size. Type threaded taper pin system of measurement inch taper pin size 9 pin length inch 6 large end diameter decimal inch 0 5890 material steel material grade c 12l14 finish coating uncoated thread size inch 1 2 20 thread length inch 33 64 thread end. A corresponding wrench fits into the dowel pin hole for easy removal.

To remove thread a screw or tool into the tapped hole then pull the pin out. Ansi asme b18 8 2 ansi ground machine dowel pins hardened are furnished in two diameter series. In both metric or inch standard measurements. This material is known for its corrosion resistance and has varying strengths depending on the amount of chromium and nickel alloy.

Undersize dowel undersized dowel pins are manufactured slightly under the nominal size. Standard series having basic diameters 0 0002 inch over the nominal diameter intended for initial installations. Threaded studs and rods. Dowel pin engineers steel dowel pins are hardened and precision ground parallel pins engineered to tight tolerance limits for accurately locating and alignment in drilled and reamed holes.

Suggested hole diameter for standard series pins. A dowel pin can be threaded or have a smooth shaft. Spiral vent pull out dowel pins a spiral groove cut into these pins relieves trapped air but stays in 360 contact with the hole for a secure fit that s easy to insert in and remove from blind holes. Thru hardened steel case hardened steel and silver steel dowel pins both plain and tapped for extraction.

Dowel pin 566 special interest clearance item 3 promotional items 561 stainless steel dowel pins an iron based material with a minimum of 10 5 chromium. Pull dowel pin pull dowel pins have a threaded hole in one end so that a screw can be inserted to help remove the pin from a blind hole. Pull out dowels are not referenced by any standard of astm or asme but by custom have the same hardness as hardened ground machine dowel pins.