System of Measurement System of Measurement |
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Pin Type Pin Type |
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![]() | Ejector |
Head Type Head Type |
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![]() | Flat |
Head Diameter Head Diameter |
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Material Material |
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End Shape End Shape |
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![]() | Flat |
Minimum Hardness Minimum Hardness |
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Shaft Type Shaft Type |
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![]() | Plain |
Head Height Head Height |
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Finish Finish |
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Shoulder Diameter Shoulder Diameter |
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End Type End Type |
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![]() | Plain |
RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Shoulder-Style Ejector Pins

A thick shoulder underneath the head makes these pins more rigid than standard ejector pins. Also known as knockout and forged pins, use them to push parts out of molds. They're precision-ground to tight tolerances and hardened for strength and wear resistance. Machining is not recommended.
Pins are made of H13 tool steel to resist rapid changes in temperature.
For technical drawings and 3-D models, click on a part number.
Head | 6" Lg. | 10" Lg. | ||||||||
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Dia. | Dia. Tolerance | Dia. | Ht. | Min. Hardness | Shoulder Dia. | Choose a Shoulder Lg. | Each | Each | ||
Nitride-Coated H13 Tool Steel | ||||||||||
1/32" | -0.0008" to -0.0005" | 1/4" | 1/8" | Rockwell C41 | 1/8" | 3/8", 1 7/8" | 000000000 | 00000 | 000000 | 00 |
3/64" | -0.0008" to -0.0005" | 1/4" | 1/8" | Rockwell C41 | 1/8" | 3/8", 1 7/8" | 000000000 | 0000 | 000000000 | 00000 |
1/16" | -0.0008" to -0.0005" | 1/4" | 1/8" | Rockwell C41 | 1/8" | 3/8", 1 7/8" | 000000000 | 0000 | 000000000 | 0000 |
5/64" | -0.0008" to -0.0005" | 1/4" | 1/8" | Rockwell C41 | 1/8" | 3/8", 1 7/8" | 000000000 | 0000 | 000000000 | 0000 |
3/32" | -0.0008" to -0.0005" | 1/4" | 1/8" | Rockwell C41 | 1/8" | 3/8", 1 7/8" | 000000000 | 0000 | 000000000 | 0000 |
7/64" | -0.0008" to -0.0005" | 1/4" | 1/8" | Rockwell C41 | 1/8" | 3/8", 1 7/8" | 000000000 | 0000 | 000000000 | 0000 |