Metric Tapered Dowel Pin Dimensions

Dowel pins are supplied from 1mm diameter to 25mm as standard.

Metric tapered dowel pin dimensions.

A 1 48 taper is equivalent to 1 4 inch per foot. Metric pins provide a self holding taper of 1 mm per 50 mm of length. Type a pins are ground and have a surface finish ra 0 8 micro meter. To install create a tapered hole using a taper pin drill bit that matches the pin number.

Taper pins connect a gear hub collar or pulley to a shaft. Some are threaded on one end to accept a nut. Stepped dowel pins have two or more different body diameters. Tapered pins have a taper rate of 1 4 per foot from the larger diameter to the smaller diameter.

Standard inch sized taper pins have a taper on diameter of 1 48 while metric ones have a taper of 1 50. Threaded taper pins are similar to a regular tapered pin but with helical grooves along one of the diameters. A taper pin is self tightening due to the small angle of the taper. Other sizes can be manufactured upon request.

Lengths are available from 3mm to 120mm. To remove hit the small end of the pin with a punch to drive it out. Metric unthreaded taper pins are produced by stanlok to iso 2339 din 1 in sizes from 0 6 mm through 50 mm. Boneham s type b dowel pins are case hardened.

800 476 4849 170 aprill drive ann arbor michigan 48103 usa. A taper pin is a fastener used in mechanical engineering. The width on the small end of taper pins is considered a function of the length and should be specified as a reference dimension for determining the drilled hole size. Dowel pin assortments dowel pins are commonly used as pivots hinges shafts jigs and fixtures to locate or hold parts.

Taper pins technical a steel pin with a 1 50 taper for metric sizes and 1 48 taper for imperial sizes. Screw the threaded end of these metric studs into a tapped hole and use the unthreaded end as a pivot point hinge shaft or locator pin. A 1 48 taper means that one end of a 4 foot long bar 48 inches will be 1 inch smaller in diameter than the other end or a 1 4 inch taper over a. Metric pins meet din 1 specifications.

For the full standard size table please see the data sheet view the online published catalogue or request a hard copy from our technical sales team. Steel pins have good strength. These solid cylindrical rods have a uniform taper of 1 4 per foot for standard sizes. They are steel rods with one end having a slightly larger diameter than the other.

Breaking strength is measured as single shear which is the force required to break the pin into two pieces. Type b pins are turned and have a surface finish ra 3 2 micrometer.