Quarter-Groove Dowel Pins
Quarter-groove pins are well suited for hinges or pivots. The grooves pinch shut when pressed into a hole, creating tension and holding the pin in place. The grooved end locks pins in position, while the smooth portion acts as a pivot. For the best fit, the hole should be equal to or slightly larger than the diameter shown. The ends are chamfered for easy insertion. Pins are made of zinc-plated steel for good strength and some corrosion resistance. Breaking strength is measured as double shear, which is the force required to break a pin into three pieces. Also known as type C pins.
For technical drawings and 3-D models, click on a part number.
| Lg. | Dia. (A) | Dia. (A) Tolerance | Dia. (B) | Dia. (B) Tolerance | Groove Lg. | Breaking Strength, lbs. | Pkg. Qty. | Pkg. | |
Zinc-Plated 12L14 Carbon Steel | |||||||||
|---|---|---|---|---|---|---|---|---|---|
3/32" Dia. | |||||||||
| 1/4" | 0.094" | -0.002" to 0" | 0.101" | -0.003" to 0.003" | 1/16" | 850 | 25 | 000000000 | 000000 |
| 1/2" | 0.094" | -0.002" to 0" | 0.101" | -0.003" to 0.003" | 1/8" | 850 | 25 | 000000000 | 00000 |
1/8" Dia. | |||||||||
| 1/2" | 0.125" | -0.002" to 0" | 0.134" | -0.003" to 0.003" | 1/8" | 1,600 | 25 | 000000000 | 00000 |
| 3/4" | 0.125" | -0.002" to 0" | 0.134" | -0.003" to 0.003" | 3/16" | 1,600 | 25 | 000000000 | 00000 |
| 1" | 0.125" | -0.002" to 0" | 0.133" | -0.003" to 0.003" | 1/4" | 1,600 | 25 | 000000000 | 00000 |
5/32" Dia. | |||||||||
| 1/2" | 0.156" | -0.002" to 0" | 0.166" | -0.003" to 0.003" | 1/8" | 2,300 | 25 | 000000000 | 00000 |
| 3/4" | 0.156" | -0.002" to 0" | 0.166" | -0.003" to 0.003" | 3/16" | 2,300 | 25 | 000000000 | 00000 |
| 1" | 0.156" | -0.002" to 0" | 0.165" | -0.003" to 0.003" | 1/4" | 2,300 | 25 | 000000000 | 00000 |
3/16" Dia. | |||||||||
| 1/2" | 0.188" | -0.002" to 0" | 0.198" | -0.003" to 0.003" | 1/8" | 3,300 | 25 | 000000000 | 00000 |
| 3/4" | 0.188" | -0.002" to 0" | 0.198" | -0.003" to 0.003" | 3/16" | 3,300 | 25 | 000000000 | 00000 |
| 1" | 0.188" | -0.002" to 0" | 0.198" | -0.003" to 0.003" | 1/4" | 3,300 | 10 | 000000000 | 0000 |
| 1 1/2" | 0.188" | -0.002" to 0" | 0.197" | -0.003" to 0.003" | 3/8" | 3,300 | 10 | 000000000 | 00000 |
1/4" Dia. | |||||||||
| 3/4" | 0.25" | -0.002" to 0" | 0.263" | -0.003" to 0.003" | 3/16" | 5,800 | 25 | 000000000 | 00000 |
| 1" | 0.25" | -0.002" to 0" | 0.263" | -0.003" to 0.003" | 1/4" | 5,800 | 25 | 000000000 | 00000 |
| 1 1/4" | 0.25" | -0.002" to 0" | 0.263" | -0.003" to 0.003" | 5/16" | 5,800 | 10 | 000000000 | 0000 |
| 1 1/2" | 0.25" | -0.002" to 0" | 0.262" | -0.003" to 0.003" | 3/8" | 5,800 | 10 | 000000000 | 00000 |
5/16" Dia. | |||||||||
| 3/4" | 0.313" | -0.002" to 0" | 0.329" | -0.003" to 0.003" | 3/16" | 7,600 | 10 | 000000000 | 0000 |
| 1" | 0.313" | -0.002" to 0" | 0.329" | -0.003" to 0.003" | 1/4" | 7,600 | 10 | 000000000 | 0000 |
| 1 1/4" | 0.313" | -0.002" to 0" | 0.329" | -0.003" to 0.003" | 5/16" | 7,600 | 10 | 000000000 | 0000 |
3/8" Dia. | |||||||||
| 1" | 0.375" | -0.002" to 0" | 0.394" | -0.003" to 0.003" | 1/4" | 11,000 | 10 | 000000000 | 00000 |