System of Measurement System of Measurement |
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End Shape End Shape |
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 | Rounded |
Pin Type Pin Type |
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 | Dowel |
Material Material |
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Finish Finish |
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Head Type Head Type |
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 | Plain |
Shaft Type Shaft Type |
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 | Grooved |
End Type End Type |
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 | Plain |
Breaking Strength Breaking Strength |
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Tolerance Rating Tolerance Rating |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Minimum Hardness Minimum Hardness |
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Half-Groove Dowel Pins with Notch
These pins are commonly used as anchors for tension springs. The grooved half locks pins in position, and spring ends fit in to the notch. The grooves pinch shut when pressed into a hole, creating tension and holding the pin in place. For the best fit, the hole should be equal to or slightly larger than the diameter shown. The ends are rounded 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 G 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" | 1/8" | 850 | 25 | 000000000 | 000000 |
| 1/2" | 0.094" | -0.002" to 0" | 0.101" | -0.003" to 0.003" | 1/4" | 850 | 25 | 000000000 | 00000 |
1/8" Dia. | |||||||||
| 1/2" | 0.125" | -0.002" to 0" | 0.134" | -0.003" to 0.003" | 1/4" | 1,600 | 25 | 000000000 | 00000 |
| 3/4" | 0.125" | -0.002" to 0" | 0.134" | -0.003" to 0.003" | 3/8" | 1,600 | 25 | 000000000 | 00000 |
| 1" | 0.125" | -0.002" to 0" | 0.133" | -0.003" to 0.003" | 1/2" | 1,600 | 25 | 000000000 | 00000 |
5/32" Dia. | |||||||||
| 1/2" | 0.156" | -0.002" to 0" | 0.166" | -0.003" to 0.003" | 1/4" | 2,300 | 25 | 000000000 | 00000 |
| 3/4" | 0.156" | -0.002" to 0" | 0.166" | -0.003" to 0.003" | 3/8" | 2,300 | 25 | 000000000 | 00000 |
| 1" | 0.156" | -0.002" to 0" | 0.165" | -0.003" to 0.003" | 1/2" | 2,300 | 25 | 000000000 | 00000 |
3/16" Dia. | |||||||||
| 1/2" | 0.188" | -0.002" to 0" | 0.198" | -0.003" to 0.003" | 1/4" | 3,300 | 25 | 000000000 | 00000 |
| 3/4" | 0.188" | -0.002" to 0" | 0.198" | -0.003" to 0.003" | 3/8" | 3,300 | 25 | 000000000 | 00000 |
| 1" | 0.188" | -0.002" to 0" | 0.198" | -0.003" to 0.003" | 1/2" | 3,300 | 10 | 000000000 | 0000 |
| 1 1/2" | 0.188" | -0.002" to 0" | 0.197" | -0.003" to 0.003" | 3/4" | 3,300 | 10 | 000000000 | 00000 |
1/4" Dia. | |||||||||
| 3/4" | 0.25" | -0.002" to 0" | 0.263" | -0.003" to 0.003" | 3/8" | 5,800 | 25 | 000000000 | 00000 |
| 1" | 0.25" | -0.002" to 0" | 0.263" | -0.003" to 0.003" | 1/2" | 5,800 | 25 | 000000000 | 00000 |
| 1 1/4" | 0.25" | -0.002" to 0" | 0.263" | -0.003" to 0.003" | 5/8" | 5,800 | 10 | 000000000 | 0000 |
| 1 1/2" | 0.25" | -0.002" to 0" | 0.262" | -0.003" to 0.003" | 3/4" | 5,800 | 10 | 000000000 | 0000 |
5/16" Dia. | |||||||||
| 3/4" | 0.313" | -0.002" to 0" | 0.329" | -0.003" to 0.003" | 3/8" | 7,600 | 10 | 000000000 | 0000 |
| 1" | 0.313" | -0.002" to 0" | 0.329" | -0.003" to 0.003" | 1/2" | 7,600 | 10 | 000000000 | 0000 |
| 1 1/4" | 0.313" | -0.002" to 0" | 0.329" | -0.003" to 0.003" | 5/8" | 7,600 | 10 | 000000000 | 0000 |
3/8" Dia. | |||||||||
| 1" | 0.375" | -0.002" to 0" | 0.394" | -0.003" to 0.003" | 1/2" | 11,000 | 10 | 000000000 | 00000 |