Dowel Pins
Use dowel pins as pivots, hinges, shafts, jigs, and fixtures to locate or hold parts. For a tight fit, your hole should be equal to or slightly smaller than the diameter shown. Breaking strength is measured as double shear, which is the force required to break a pin into three pieces.
Pins with a material certificate provide a traceable lot number and test report.
Steel pins are the strongest dowel pins. Steel pins are precision ground except for 1/32" diameter pins. Stainless steel pins are more corrosion resistant than steel pins. Pins that are passivated offer added protection against corrosion and oxidation. Stainless steel pins are precision ground except for 1/64" diameter pins. 18-8 stainless steel pins offer a balance of strength and corrosion resistance. They may be mildly magnetic. 416 stainless steel pins are more wear resistant than other stainless pins, but not as corrosion resistant. They are magnetic.
Some pins meet material and dimensional standards set by ASME, Mil. Spec., DIN, or ISO.
For technical drawings and 3-D models, click on a part number.
| Lg. | Dia. Tolerance | Min. Hardness | Breaking Strength, lbs. | Specifications Met | Pkg. Qty. | Pkg. | |
1" Dia. | |||||||
|---|---|---|---|---|---|---|---|
| 1" | 0.0001" to 0.0003" | Rockwell C50 | 160,000 | ASME B18.8.2 | 1 | 000000000 | 00000 |
| 1 1/4" | 0.0001" to 0.0003" | Rockwell C50 | 160,000 | ASME B18.8.2 | 1 | 000000000 | 0000 |
| 1 1/2" | 0.0001" to 0.0003" | Rockwell C47 | 160,000 | ASME B18.8.2 | 1 | 000000000 | 0000 |
| 1 3/4" | 0.0001" to 0.0003" | Rockwell C47 | 160,000 | ASME B18.8.2 | 1 | 000000000 | 0000 |
| 2" | 0.0001" to 0.0003" | Rockwell C47 | 160,000 | ASME B18.8.2 | 1 | 000000000 | 0000 |
| 2 1/4" | 0.0001" to 0.0003" | Rockwell C47 | 160,000 | ASME B18.8.2 | 1 | 000000000 | 0000 |
| 2 1/2" | 0.0001" to 0.0003" | Rockwell C47 | 160,000 | ASME B18.8.2 | 1 | 000000000 | 00000 |
| 2 3/4" | 0.0001" to 0.0003" | Rockwell C47 | 160,000 | ASME B18.8.2 | 1 | 000000000 | 00000 |
| 3" | 0.0001" to 0.0003" | Rockwell C47 | 160,000 | ASME B18.8.2 | 1 | 000000000 | 00000 |
| 3 1/4" | 0.0001" to 0.0003" | Rockwell C50 | 160,000 | ASME B18.8.2 | 1 | 000000000 | 00000 |
| 3 1/2" | 0.0001" to 0.0003" | Rockwell C47 | 160,000 | ASME B18.8.2 | 1 | 000000000 | 00000 |
| 4" | 0.0001" to 0.0003" | Rockwell C47 | 160,000 | ASME B18.8.2 | 1 | 000000000 | 00000 |
| 4 1/2" | 0.0001" to 0.0003" | Rockwell C47 | 160,000 | ASME B18.8.2 | 1 | 000000000 | 00000 |
| 5" | 0.0001" to 0.0003" | Rockwell C47 | 160,000 | ASME B18.8.2 | 1 | 000000000 | 00000 |
| 6" | 0.0001" to 0.0003" | Rockwell C47 | 160,000 | ASME B18.8.2 | 1 | 000000000 | 00000 |
| 8" | 0.0001" to 0.0003" | Rockwell C50 | 160,000 | ASME B18.8.2 | 1 | 000000000 | 00000 |
| 10" | 0.0001" to 0.0003" | Rockwell C50 | 160,000 | ASME B18.8.2 | 1 | 000000000 | 00000 |
| Lg. | Dia. Tolerance | Min. Hardness | Breaking Strength | Passivation | Pkg. Qty. | Pkg. | |
1" Dia. | |||||||
|---|---|---|---|---|---|---|---|
| 1" | 0" to 0.0002" | Not Rated | Not Rated | Not Passivated | 1 | 000000000 | 000000 |
| 1 1/4" | 0" to 0.0002" | Not Rated | Not Rated | Not Passivated | 1 | 000000000 | 00000 |
| 1 1/2" | 0" to 0.0002" | Not Rated | Not Rated | Not Passivated | 1 | 000000000 | 00000 |
| 2" | 0" to 0.0002" | Not Rated | Not Rated | Not Passivated | 1 | 000000000 | 00000 |
| 3" | 0" to 0.0002" | Not Rated | Not Rated | Not Passivated | 1 | 000000000 | 00000 |
| 4" | 0" to 0.0002" | Not Rated | Not Rated | Not Passivated | 1 | 000000000 | 00000 |
| 5" | 0" to 0.0002" | Not Rated | Not Rated | Not Passivated | 1 | 000000000 | 00000 |
| 6" | 0" to 0.0002" | Not Rated | Not Rated | Not Passivated | 1 | 000000000 | 00000 |
| Length | Dia. Tolerance | Min. Hardness | Breaking Strength, lbs. | Passivation | Specifications Met | Pkg. Qty. | Pkg. | |
Pins | ||||||||
|---|---|---|---|---|---|---|---|---|
1" Dia. | ||||||||
| 1 1/2" | 0.0001" to 0.0003" | Rockwell C36 | 110,000 | Passivated | __ | 1 | 000000000 | 000000 |
| 2" | 0.0001" to 0.0003" | Rockwell C36 | 110,000 | Passivated | __ | 1 | 000000000 | 00000 |
| 3" | 0.0001" to 0.0003" | Rockwell C36 | 110,000 | Passivated | MS16555-732 | 1 | 000000000 | 00000 |
| 4" | 0.0001" to 0.0003" | Rockwell C36 | 110,000 | Passivated | MS16555-736 | 1 | 000000000 | 00000 |
| 6" | 0.0001" to 0.0003" | Rockwell C36 | 110,000 | Passivated | MS16555-744 | 1 | 000000000 | 00000 |
Pins with Material Certificate with Traceable Lot Number and Test Report | ||||||||
1" Dia. | ||||||||
| 3" | 0.0001" to 0.0003" | Rockwell C36 | 110,000 | Passivated | MS16555-732 | 1 | 000000000 | 00000 |
Pull-Out Dowel Pins
One end of these pins is tapped, and the other is chamfered for easy insertion. To remove, thread a screw or tool into the tapped hole, then pull the pin out. Because they aren't vented, they work best in through holes. Use them as pivots, hinges, shafts, jigs, and fixtures to locate or hold parts. Pins are precision ground for accurate alignment. Breaking strength is measured as double shear, which is the force required to break a pin into three pieces.
Pins that meet ASME B18.8.2 specifications conform to ASME standards for material and dimensions.
Steel pins have good strength. 18-8 stainless steel pins offer a balance of strength and corrosion resistance. They may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
| Lg. | Dia. Tolerance | Thread Size  | Min. Hardness | Breaking Strength, lbs. | Specifications Met | Each | |
1" Dia. | |||||||
|---|---|---|---|---|---|---|---|
| 2" | 0.0001" to 0.0003" | 5/16"-18 | Rockwell C47 | 102,000 | ASME B18.8.2 | 000000000 | 00000 |
| 2 1/2" | 0.0001" to 0.0003" | 5/16"-18 | Rockwell C47 | 102,000 | ASME B18.8.2 | 000000000 | 00000 |
| 3" | 0.0001" to 0.0003" | 5/16"-18 | Rockwell C47 | 102,000 | ASME B18.8.2 | 000000000 | 00000 |
| 4" | 0.0001" to 0.0003" | 5/16"-18 | Rockwell C47 | 102,000 | ASME B18.8.2 | 000000000 | 00000 |
| Lg. | Dia. Tolerance | Thread Size | Min. Hardness | Breaking Strength | Each | |
1" Dia. | ||||||
|---|---|---|---|---|---|---|
| 2" | 0.0001" to 0.0003" | 5/16"-18 | Not Rated | Not Rated | 000000000 | 000000 |
| 2 1/2" | 0.0001" to 0.0003" | 5/16"-18 | Not Rated | Not Rated | 000000000 | 00000 |
| 3" | 0.0001" to 0.0003" | 5/16"-18 | Not Rated | Not Rated | 000000000 | 00000 |
| 4" | 0.0001" to 0.0003" | 5/16"-18 | Not Rated | Not Rated | 000000000 | 00000 |
Use with internally threaded dowel pins. A complete tool requires a puller handle and a tip that fits your pin. You’ll also need a socket head cap screw that can thread into the pin. To use, thread a tip into the puller handle and fit the other end of the tip over the screw. Slide the weight along the handle to push or pull.
Flat-Vent Pull-Out Dowel Pins
The flat side of these pins relieves trapped air, making them easier to insert and remove from blind holes. One end is tapped and the other is chamfered for easy insertion. To remove, thread a screw or tool into the tapped hole, then pull them out. Use them as pivots, hinges, shafts, jigs, and fixtures to locate or hold parts. Pins are precision ground for accurate alignment. Breaking strength is measured as double shear, which is the force required to break a pin into three pieces.
Pins that meet ASME B18.8.2 specifications conform to ASME standards for material and dimensions.
Steel pins have good strength.
18-8 stainless steel pins offer a balance of strength and corrosion resistance. They may be mildly magnetic.
Use puller handles, tips, and optional extensions (sold separately) with some internally threaded dowel pins to create insertion and removal tools. A complete tool requires a puller handle and a tip that fits your pin. You’ll also need a socket head cap screw that can thread into the pin. To use, thread a tip into the puller handle and fit the other end of the tip over the screw. Slide the weight along the handle to push or pull.
For technical drawings and 3-D models, click on a part number.
Pins | Puller Handles | Tips | Optional Extensions | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Dia. Tolerance | Thread Size | Min. Hardness | Breaking Strength, lbs. | Specifications Met | Each | Each | Each | Each | ||||
1" Dia. | |||||||||||||
| 2" | 0.0001" to 0.0003" | 5/16"-18 | Rockwell C47 | 102,000 | ASME B18.8.2 | 000000000 | 000000 | 000000000 | 000000 | 000000000 | 000000 | 000000000 | 000000 |
| 3" | 0.0001" to 0.0003" | 5/16"-18 | Rockwell C47 | 102,000 | ASME B18.8.2 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 |
| 4" | 0.0001" to 0.0003" | 5/16"-18 | Rockwell C47 | 102,000 | ASME B18.8.2 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 |
Pins | Puller Handles | Tips | Optional Extensions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Dia. Tolerance | Thread Size | Min. Hardness | Breaking Strength | Each | Each | Each | Each | ||||
1" Dia. | ||||||||||||
| 2" | 0.0001" to 0.0003" | 5/16"-18 | Rockwell C47 | Not Rated | 000000000 | 000000 | 000000000 | 000000 | 000000000 | 000000 | 000000000 | 000000 |
| 3" | 0.0001" to 0.0003" | 5/16"-18 | Rockwell C47 | Not Rated | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 |
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. One end is tapped and the other is chamfered for easy insertion. To remove, thread a screw or tool into the tapped hole, then pull them out. Use them as pivots, hinges, shafts, jigs, and fixtures to locate or hold parts. Pins are precision ground for accurate alignment. Breaking strength is measured as double shear, which is the force required to break a pin into three pieces.
Pins that meet ASME B18.8.2 specifications conform to ASME standards for material and dimensions.
Steel pins have good strength.
18-8 stainless steel pins offer a balance of strength and corrosion resistance. They may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
| Lg. | Dia. Tolerance | Thread Size | Min. Hardness | Breaking Strength, lbs. | Specifications Met | Each | |
1" Dia. | |||||||
|---|---|---|---|---|---|---|---|
| 2" | 0.0001" to 0.0003" | 3/8"-16 | Rockwell C47 | 102,000 | ASME B18.8.2 | 000000000 | 000000 |
| 3" | 0.0001" to 0.0003" | 3/8"-16 | Rockwell C47 | 102,000 | ASME B18.8.2 | 000000000 | 00000 |
| 4" | 0.0001" to 0.0003" | 3/8"-16 | Rockwell C47 | 102,000 | ASME B18.8.2 | 000000000 | 00000 |
Use with internally threaded dowel pins. A complete tool requires a puller handle and a tip that fits your pin. You’ll also need a socket head cap screw that can thread into the pin. To use, thread a tip into the puller handle and fit the other end of the tip over the screw. Slide the weight along the handle to push or pull.
Pins for Shear Hubs
For use with Browning shear hubs, these pins are designed to fail at specific loads to protect heavy duty machinery from torque overload. Pins will be either 12L14 or 1215 carbon steel.
For technical drawings and 3-D models, click on a part number.
| Groove Dia. | For Min. Shaft Dia. | Browning Shear Pin Number | Breaking Torque, in.-lbs. | Each | |
1" Dia. | |||||
|---|---|---|---|---|---|
2 5/8" Lg. | |||||
| 3/8" | 3" | 1U | 59,670 | 000000000 | 000000 |
| 13/32" | 3 1/8" | 2U | 69,980 | 000000000 | 00000 |
| 7/16" | 3 1/4" | 3U | 81,160 | 000000000 | 00000 |
| 15/32" | 3 1/2" | 4U | 93,200 | 000000000 | 00000 |
| 1/2" | 3 5/8" | 5U | 106,050 | 000000000 | 00000 |
| 17/32" | 3 3/4" | 6U | 119,710 | 000000000 | 00000 |
| 9/16" | 3 7/8" | 7U | 134,190 | 000000000 | 00000 |
| 19/32" | 4" | 8U | 149,520 | 000000000 | 00000 |
| 5/8" | 4 1/8" | 9U | 165,670 | 000000000 | 00000 |
| 21/32" | 4 1/4" | 10U | 182,620 | 000000000 | 00000 |
| 11/16" | 4 1/2" | 11U | 200,440 | 000000000 | 00000 |
| 23/32" | 4 5/8" | 12U | 219,070 | 000000000 | 00000 |
| 3/4" | 4 3/4" | 13U | 238,570 | 000000000 | 00000 |
| 25/32" | 4 7/8" | 14U | 258,870 | 000000000 | 00000 |
Ejector Pins
Also known as knockout and forged pins, use these pins to push parts out of molds. Pins are precision-ground to tight tolerances and hardened for strength and wear resistance. Machining is not recommended.
H13 tool steel pins resist rapid changes in temperature.
For technical drawings and 3-D models, click on a part number.
Vibration-Resistant Slotted Spring Pins
Interlocking teeth help these pins resist sliding when exposed to vibration. Also known as roll, tension, split, and expansion pins, they have a slot that presses closed when the pins are inserted so they don't flex after installation. Use them for fastening, pivoting, and holding.
Squeeze pins closed and install them in a hole. Tension holds them tight against the hole wall. The ends are chamfered to aid insertion.
Breaking strength is measured as double shear, which is the force required to break a pin into three pieces.
Pins are made of vanadium steel for excellent wear resistance.
For technical drawings and 3-D models, click on a part number.
| Lg. | For Hole Dia. | Wall Thick. | Min. Hardness | Breaking Strength, lbs. | Passivation | Each | |
Black-Oxide 6150 Vanadium Steel | |||||||
|---|---|---|---|---|---|---|---|
1" Dia. | |||||||
| 4" | 1"-1.001" | 0.188" | Rockwell C42 | 35,000 | Not Passivated | 000000000 | 000000 |
| 5" | 1"-1.001" | 0.188" | Rockwell C42 | 35,000 | Not Passivated | 000000000 | 00000 |
| 6" | 1"-1.001" | 0.188" | Rockwell C42 | 35,000 | Not Passivated | 000000000 | 00000 |
Press-Fit Locating and Support Buttons
Support and position workpieces and fixtures from the bottom or side. These buttons press into a drilled hole for permanent installation. Also known as rest buttons.
For technical drawings and 3-D models, click on a part number.
Screw-Mount Locating and Support Buttons
Mount through the counterbored hole with a socket head cap screw to support and position workpieces and fixtures from the bottom or side. They’re also known as rest buttons.
Stainless steel buttons are a good choice to avoid corrosion when working with stainless steel workpieces or fixtures.
For technical drawings and 3-D models, click on a part number.
Domed-Head Locating and Support Buttons
Support rounded or irregularly shaped workpieces from the bottom or side with minimal contact. Press the stud into a drilled hole for permanent installation. Also known as rest buttons.
For technical drawings and 3-D models, click on a part number.
Inspection and Measuring Fixturing
Use these components in coordinate measuring machine (CMM) applications to raise a workpiece and reliably position it on a fixture plate with 1/4"-20 holes. They are not for use in machining applications.
For technical drawings and 3-D models, click on a part number.
