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.
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. 316 stainless steel pins have the best corrosion resistance of our stainless steel pins. 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.
For technical drawings and 3-D models, click on a part number.
| Lg. | Dia. Tolerance | Min. Hardness | Breaking Strength, lbs. | Pkg. Qty. | Pkg. | |
7/32" Dia. | ||||||
|---|---|---|---|---|---|---|
| 7/32" | 0.0001" to 0.0003" | Rockwell C50 | Not Rated | 1 | 000000000 | 00000 |
| 1/4" | 0.0001" to 0.0003" | Rockwell C50 | Not Rated | 1 | 000000000 | 0000 |
| 3/8" | 0.0001" to 0.0003" | Rockwell C50 | Not Rated | 1 | 000000000 | 0000 |
| 1/2" | 0.0001" to 0.0003" | Rockwell C50 | Not Rated | 1 | 000000000 | 0000 |
| 5/8" | 0.0001" to 0.0003" | Rockwell C50 | Not Rated | 1 | 000000000 | 0000 |
| 3/4" | 0.0001" to 0.0003" | Rockwell C50 | Not Rated | 1 | 000000000 | 0000 |
| 7/8" | 0.0001" to 0.0003" | Rockwell C50 | Not Rated | 1 | 000000000 | 0000 |
| 1" | 0.0001" to 0.0003" | Rockwell C50 | Not Rated | 1 | 000000000 | 0000 |
| 1 1/4" | 0.0001" to 0.0003" | Rockwell C50 | Not Rated | 1 | 000000000 | 0000 |
| 1 1/2" | 0.0001" to 0.0003" | Rockwell C50 | Not Rated | 1 | 000000000 | 0000 |
| 1 3/4" | 0.0001" to 0.0003" | Rockwell C50 | Not Rated | 1 | 000000000 | 0000 |
| 2" | 0.0001" to 0.0003" | Rockwell C50 | Not Rated | 1 | 000000000 | 0000 |
| Lg. | Dia. Tolerance | Min. Hardness | Breaking Strength | Passivation | Pkg. Qty. | Pkg. | |
7/32" Dia. | |||||||
|---|---|---|---|---|---|---|---|
| 7/32" | 0" to 0.0002" | Not Rated | Not Rated | Passivated | 5 | 000000000 | 000000 |
| 1/4" | 0" to 0.0002" | Not Rated | Not Rated | Passivated | 5 | 000000000 | 00000 |
| 3/8" | 0" to 0.0002" | Not Rated | Not Rated | Passivated | 5 | 000000000 | 00000 |
| 1/2" | 0" to 0.0002" | Not Rated | Not Rated | Passivated | 5 | 000000000 | 00000 |
| 5/8" | 0" to 0.0002" | Not Rated | Not Rated | Passivated | 5 | 000000000 | 00000 |
| 3/4" | 0" to 0.0002" | Not Rated | Not Rated | Passivated | 5 | 000000000 | 00000 |
| 7/8" | 0" to 0.0002" | Not Rated | Not Rated | Passivated | 5 | 000000000 | 00000 |
| 1" | 0" to 0.0002" | Not Rated | Not Rated | Passivated | 5 | 000000000 | 00000 |
| 1 1/4" | 0" to 0.0002" | Not Rated | Not Rated | Passivated | 1 | 000000000 | 0000 |
| 1 1/2" | 0" to 0.0002" | Not Rated | Not Rated | Passivated | 1 | 000000000 | 0000 |
| 1 3/4" | 0" to 0.0002" | Not Rated | Not Rated | Passivated | 1 | 000000000 | 0000 |
| 2" | 0" to 0.0002" | Not Rated | Not Rated | Passivated | 1 | 000000000 | 0000 |
| Lg. | Dia. Tolerance | Min. Hardness | Breaking Strength | Passivation | Pkg. Qty. | Pkg. | |
7/32" Dia. | |||||||
|---|---|---|---|---|---|---|---|
| 7/32" | 0" to 0.0002" | Not Rated | Not Rated | Passivated | 5 | 000000000 | 000000 |
| 3/8" | 0" to 0.0002" | Not Rated | Not Rated | Passivated | 1 | 000000000 | 0000 |
| 1/2" | 0" to 0.0002" | Not Rated | Not Rated | Passivated | 1 | 000000000 | 0000 |
| 5/8" | 0" to 0.0002" | Not Rated | Not Rated | Passivated | 1 | 000000000 | 0000 |
| 3/4" | 0" to 0.0002" | Not Rated | Not Rated | Passivated | 1 | 000000000 | 0000 |
| 7/8" | 0" to 0.0002" | Not Rated | Not Rated | Passivated | 1 | 000000000 | 0000 |
| 1" | 0" to 0.0002" | Not Rated | Not Rated | Passivated | 1 | 000000000 | 0000 |
| 1 1/4" | 0" to 0.0002" | Not Rated | Not Rated | Passivated | 1 | 000000000 | 0000 |
| 1 1/2" | 0" to 0.0002" | Not Rated | Not Rated | Passivated | 1 | 000000000 | 0000 |
| 1 3/4" | 0" to 0.0002" | Not Rated | Not Rated | Passivated | 1 | 000000000 | 0000 |
| 2" | 0" to 0.0002" | Not Rated | Not Rated | Passivated | 1 | 000000000 | 0000 |
Pins | |||||||
|---|---|---|---|---|---|---|---|
| Length | Dia. Tolerance | Min. Hardness | Breaking Strength, lbs. | Passivation | Pkg. Qty. | Pkg. | |
7/32" Dia. | |||||||
| 7/32" | 0.0001" to 0.0003" | Rockwell C36 | Not Rated | Passivated | 5 | 000000000 | 000000 |
| 1/4" | 0.0001" to 0.0003" | Rockwell C36 | Not Rated | Passivated | 5 | 000000000 | 0000 |
| 3/8" | 0.0001" to 0.0003" | Rockwell C36 | Not Rated | Passivated | 5 | 000000000 | 00000 |
| 1/2" | 0.0001" to 0.0003" | Rockwell C36 | Not Rated | Passivated | 5 | 000000000 | 00000 |
| 5/8" | 0.0001" to 0.0003" | Rockwell C36 | Not Rated | Passivated | 5 | 000000000 | 00000 |
| 3/4" | 0.0001" to 0.0003" | Rockwell C36 | Not Rated | Passivated | 5 | 000000000 | 00000 |
| 7/8" | 0.0001" to 0.0003" | Rockwell C36 | Not Rated | Passivated | 5 | 000000000 | 00000 |
| 1" | 0.0001" to 0.0003" | Rockwell C36 | Not Rated | Passivated | 5 | 000000000 | 00000 |
| 2" | 0.0001" to 0.0003" | Rockwell C36 | Not Rated | Passivated | 1 | 000000000 | 0000 |
Core Pins
Mold plastic around these pins to form small holes, or use them to perforate parts. They have a flat head to fit into a counterbored hole. Pins can be machined to fit your application. They're precision-ground to tight tolerances.
M2 tool steel pins resist wear and stay sharp at high temperatures.
Copper pins cool faster than steel ones.
For technical drawings and 3-D models, click on a part number.
Head | ||||||
|---|---|---|---|---|---|---|
| Dia. | Dia. Tolerance | Dia. | Ht. | Min. Hardness | Each | |
2 1/2" Lg. | ||||||
| 7/32" | 0" to 0.0002" | 9/32" | 1/8" | Rockwell C60 | 000000000 | 00000 |
Head | ||||||
|---|---|---|---|---|---|---|
| Dia. | Dia. Tolerance | Dia. | Ht. | Min. Hardness | Each | |
4" Lg. | ||||||
| 7/32" | 0" to 0.0003" | 9/32" | 1/8" | Rockwell C60 | 000000000 | 000000 |
Head | ||||||
|---|---|---|---|---|---|---|
| Dia. | Dia. Tolerance | Dia. | Ht. | Min. Hardness | Each | |
6" Lg. | ||||||
| 7/32" | 0" to 0.0003" | 9/32" | 1/8" | Rockwell C60 | 000000000 | 000000 |
Flush-Mount Core Pins
A 60° beveled head fits into a countersunk hole. Mold plastic around these pins to form small holes, or use them to perforate parts. Also known as perforator, mold, forged, quill, and pilot pins, they can be machined to fit your application. Pins are precision-ground to tight tolerances. Made of M2 tool steel, these pins are wear-resistant and stay sharp at high temperatures.
For technical drawings and 3-D models, click on a part number.
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.
Head | ||||||
|---|---|---|---|---|---|---|
| Dia. | Dia. Tolerance | Dia. | Ht. | Min. Hardness | Each | |
4" Lg. | ||||||
| 7/32" | -0.0008" to -0.0005" | 13/32" | 3/16" | Rockwell C41 | 000000000 | 00000 |
6" Lg. | ||||||
| 7/32" | -0.0008" to -0.0005" | 13/32" | 3/16" | Rockwell C41 | 000000000 | 0000 |
10" Lg. | ||||||
| 7/32" | -0.0008" to -0.0005" | 13/32" | 3/16" | Rockwell C41 | 000000000 | 0000 |
14" Lg. | ||||||
| 7/32" | -0.0008" to -0.0005" | 13/32" | 3/16" | Rockwell C41 | 000000000 | 0000 |
Through-Hardened Ejector Pins
Compared to standard ejector pins, these pins are less likely to chip and crack when used to push steel parts out of molds because they've been hardened through their core. However, they cannot be drilled or tapped and are more brittle than standard ejector pins. They're also known as knockout and forged pins. Made of H13 tool steel, they resist rapid changes in temperature. They’re precision ground to tight tolerances.
For technical drawings and 3-D models, click on a part number.
Head | 6" Lg. | |||||
|---|---|---|---|---|---|---|
| Dia. | Dia. Tolerance | Dia. | Ht. | Min. Hardness | Each | |
Nitride-Coated H13 Tool Steel | ||||||
| 7/32" | -0.0008" to -0.0005" | 13/32" | 3/16" | Rockwell C50 | 00000000 | 00000 |
Oversized Ejector Pins
To fit in holes that have widened from wear and are too big for standard ejector pins, these pins are oversized. Also known as knockout and forged pins, they’re used to push parts out of molds. These pins are H13 tool steel, so they resist rapid changes in temperature. They’re hardened for strength and wear resistance and precision ground to tight tolerances. Machining is not recommended.
For technical drawings and 3-D models, click on a part number.
Head | 10" Lg. | |||||
|---|---|---|---|---|---|---|
| Dia. | Dia. Tolerance | Dia. | Ht. | Min. Hardness | Each | |
Nitride-Coated H13 Tool Steel | ||||||
| 7/32" | 0.0042" to 0.0045" | 13/32" | 3/16" | Rockwell C41 | 000000000 | 00000 |
Slotted Spring Pins
Also known as roll, tension, split, and expansion pins, these pins have a slot along one side that you squeeze closed to install them into unthreaded holes. Once installed, they expand slightly, creating outward tension that holds them tight against the hole wall. These pins absorb shock and vibration in your system, and keep parts from loosening. They are often used as hinge pins, or to hold springs and power transmission components in place.
Install these pins into a hole. They have at least one chamfered end, which means the end is angled to make insertion easier.
Breaking strength is measured as double shear, which is the amount of force required to break a pin into three pieces.
Steel pins are strong and wear resistant. Pins with a black-phosphate or zinc-plated finish have an outer layer to protect the steel underneath from rust.
18-8 stainless steel pins offer a balance of strength and corrosion resistance.
420 stainless steel pins are as strong and wear resistant as steel, with the addition of corrosion resistance in wet environments.
Passivated pins offer added protection against corrosion and oxidation.
Pins that meet ASME B18.8.2 specifications are made to ASME standards for material and dimensions.
For technical drawings and 3-D models, click on a part number.
| Lg. | For Hole Dia. | Wall Thick. | Min. Hardness | Breaking Strength, lbs. | Passivation | Specifications Met | Pkg. Qty. | Pkg. | |
7/32" Dia. | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/2" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Not Passivated | ASME B18.8.2 | 100 | 000000000 | 000000 |
| 5/8" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Not Passivated | ASME B18.8.2 | 100 | 000000000 | 00000 |
| 3/4" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Not Passivated | ASME B18.8.2 | 100 | 000000000 | 00000 |
| 1" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Not Passivated | ASME B18.8.2 | 100 | 000000000 | 00000 |
| 1 1/4" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Not Passivated | ASME B18.8.2 | 100 | 000000000 | 00000 |
| 1 1/2" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Not Passivated | ASME B18.8.2 | 100 | 000000000 | 00000 |
| 1 3/4" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Not Passivated | ASME B18.8.2 | 50 | 000000000 | 00000 |
| 2" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Not Passivated | ASME B18.8.2 | 100 | 000000000 | 00000 |
| 2 1/4" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Not Passivated | ASME B18.8.2 | 50 | 000000000 | 00000 |
| 2 1/2" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Not Passivated | ASME B18.8.2 | 50 | 000000000 | 00000 |
| 2 3/4" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Not Passivated | ASME B18.8.2 | 50 | 000000000 | 00000 |
| 3" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Not Passivated | ASME B18.8.2 | 50 | 000000000 | 00000 |
| Lg. | For Hole Dia. | Wall Thick. | Min. Hardness | Breaking Strength, lbs. | Passivation | Specifications Met | Pkg. Qty. | Pkg. | |
7/32" Dia. | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/2" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Not Passivated | ASME B18.8.2 | 100 | 000000000 | 000000 |
| 5/8" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Not Passivated | ASME B18.8.2 | 100 | 000000000 | 00000 |
| 3/4" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Not Passivated | ASME B18.8.2 | 100 | 000000000 | 00000 |
| 1" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Not Passivated | ASME B18.8.2 | 100 | 000000000 | 00000 |
| 1 1/4" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Not Passivated | ASME B18.8.2 | 100 | 000000000 | 00000 |
| 1 1/2" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Not Passivated | ASME B18.8.2 | 50 | 000000000 | 00000 |
| 1 3/4" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Not Passivated | ASME B18.8.2 | 50 | 000000000 | 00000 |
| 2" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Not Passivated | ASME B18.8.2 | 50 | 000000000 | 00000 |
| 2 1/4" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Not Passivated | ASME B18.8.2 | 50 | 000000000 | 00000 |
| 2 1/2" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Not Passivated | ASME B18.8.2 | 50 | 000000000 | 00000 |
| 2 3/4" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Not Passivated | ASME B18.8.2 | 50 | 000000000 | 00000 |
| 3" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Not Passivated | ASME B18.8.2 | 25 | 000000000 | 00000 |
| Lg. | For Hole Dia. | Wall Thick. | Min. Hardness | Breaking Strength, lbs. | Passivation | Specifications Met | Pkg. Qty. | Pkg. | |
7/32" Dia. | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/2" | 0.219"-0.224" | 0.048" | Not Rated | 3,400 | Not Passivated | ASME B18.8.2 | 50 | 000000000 | 000000 |
| 5/8" | 0.219"-0.224" | 0.048" | Not Rated | 3,400 | Not Passivated | ASME B18.8.2 | 25 | 000000000 | 00000 |
| 3/4" | 0.219"-0.224" | 0.048" | Not Rated | 3,400 | Not Passivated | ASME B18.8.2 | 25 | 000000000 | 00000 |
| 1" | 0.219"-0.224" | 0.048" | Not Rated | 3,400 | Not Passivated | ASME B18.8.2 | 25 | 000000000 | 00000 |
| 1 1/4" | 0.219"-0.224" | 0.048" | Not Rated | 3,400 | Not Passivated | ASME B18.8.2 | 25 | 000000000 | 00000 |
| 1 1/2" | 0.219"-0.224" | 0.048" | Not Rated | 3,400 | Not Passivated | ASME B18.8.2 | 25 | 000000000 | 00000 |
| 1 3/4" | 0.219"-0.224" | 0.048" | Not Rated | 3,400 | Not Passivated | ASME B18.8.2 | 25 | 000000000 | 00000 |
| 2" | 0.219"-0.224" | 0.048" | Not Rated | 3,400 | Not Passivated | ASME B18.8.2 | 25 | 000000000 | 00000 |
| 2 1/4" | 0.219"-0.224" | 0.048" | Not Rated | 3,400 | Passivated | ASME B18.8.2 | 10 | 000000000 | 00000 |
| 2 1/2" | 0.219"-0.224" | 0.048" | Not Rated | 3,400 | Passivated | ASME B18.8.2 | 10 | 000000000 | 0000 |
| 2 3/4" | 0.219"-0.224" | 0.048" | Not Rated | 3,400 | Passivated | ASME B18.8.2 | 10 | 000000000 | 00000 |
| 3" | 0.219"-0.224" | 0.048" | Not Rated | 3,400 | Passivated | ASME B18.8.2 | 10 | 000000000 | 00000 |
| Lg. | For Hole Dia. | Wall Thick. | Min. Hardness | Breaking Strength, lbs. | Passivation | Specifications Met | Pkg. Qty. | Pkg. | |
7/32" Dia. | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/2" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Not Passivated | ASME B18.8.2 | 50 | 000000000 | 00000 |
| 5/8" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Passivated | ASME B18.8.2 | 25 | 000000000 | 0000 |
| 3/4" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Passivated | ASME B18.8.2 | 25 | 000000000 | 0000 |
| 1" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Passivated | ASME B18.8.2 | 25 | 000000000 | 0000 |
| 1 1/4" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Passivated | ASME B18.8.2 | 25 | 000000000 | 0000 |
| 1 1/2" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Passivated | ASME B18.8.2 | 25 | 000000000 | 0000 |
| 1 3/4" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Passivated | ASME B18.8.2 | 25 | 000000000 | 00000 |
| 2" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Passivated | ASME B18.8.2 | 25 | 000000000 | 00000 |
| 2 1/4" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Passivated | ASME B18.8.2 | 10 | 000000000 | 0000 |
| 2 1/2" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Passivated | ASME B18.8.2 | 10 | 000000000 | 0000 |
| 2 3/4" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Passivated | ASME B18.8.2 | 10 | 000000000 | 00000 |
| 3" | 0.219"-0.224" | 0.048" | Rockwell C43 | 5,800 | Passivated | ASME B18.8.2 | 10 | 000000000 | 0000 |
Coiled Spring Pins
These spiral pins remain flexible after installation, so they absorb shock and vibration better than slotted spring pins. They work well in holes that are out of round. 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 chamfered ends aid insertion.
Breaking strength is measured as double shear, which is the force required to break a pin into three pieces.
Steel pins offer good strength.
420 stainless steel pins resist wear as well as corrosion. They are magnetic.
Passivated pins offer added protection against corrosion and oxidation.
Inch pins meet ASME B18.8.2 specifications for material and dimensions.
For technical drawings and 3-D models, click on a part number.
| Lg. | For Hole Dia. | Min. Hardness | Breaking Strength, lbs. | Passivation | Specifications Met | Pkg. Qty. | Pkg. | |
1050-1095 Spring Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
7/32" Dia. | ||||||||
| 3/4" | 0.217"-0.224" | Rockwell C42 | 4,200 | Not Passivated | ASME B18.8.2 | 50 | 000000000 | 000000 |
| 1" | 0.217"-0.224" | Rockwell C42 | 4,200 | Not Passivated | ASME B18.8.2 | 50 | 000000000 | 00000 |
| 1 1/2" | 0.217"-0.224" | Rockwell C42 | 4,200 | Not Passivated | ASME B18.8.2 | 50 | 000000000 | 00000 |
| 2" | 0.217"-0.224" | Rockwell C42 | 4,200 | Not Passivated | ASME B18.8.2 | 50 | 000000000 | 00000 |
420 Stainless Steel | ||||||||
7/32" Dia. | ||||||||
| 3/4" | 0.217"-0.224" | Rockwell C46 | 4,200 | Passivated | ASME B18.8.2 | 25 | 000000000 | 00000 |
| 1" | 0.217"-0.224" | Rockwell C46 | 4,200 | Passivated | ASME B18.8.2 | 10 | 000000000 | 0000 |
| 1 1/2" | 0.217"-0.224" | Rockwell C46 | 4,200 | Passivated | ASME B18.8.2 | 10 | 000000000 | 0000 |
| 2" | 0.217"-0.224" | Rockwell C46 | 4,200 | Passivated | ASME B18.8.2 | 10 | 000000000 | 00000 |