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Spring Pins |
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Description |
A hollow, headless pin, slit longitudinally, having controlled length with chamfered ends, formed to a diameter somewhat greater than that of the hole into which it is to be assembled. |
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Applications / Advantages |
Will hold its position in an assembly by a predetermined spring tension. Spring pins are economical because they can simplify product design by replacing more expensive fasteners such as taper pins, set screws and straight pins |
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Material |
SAE 1070 - 1095 carbon steel. |
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Dowel Pins |
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Description |
A solid straight pin with a closely controlled diameter. One end is chamfered with the other end radiused to form a crown. |
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Applications / Advantages |
Wide variety of uses, including as a plug gage, hinge or shaft. Precise tolerances of dowel pins make them excellent for achieving proper alignment of parts in high-speed assemblies, or as roller bearings in bus/truck wheel housings. Important note: Dowel pins should be installed by being pressed in, not struck with an impact force. |
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Material |
Pins shall be made from any alloy steel capable of achieving the proper hardness requirements listed herein, having sulfur content of 0.05% maximum, and phosphorus content of 0.04% maximum. |
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Cotter Pins |
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Description |
A double bodied pin formed from half-round wire, a loop at one end of which provides a head. The finished part has one end of the wire extending beyond the other end, with a chiseled point. |
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Applications / Advantages |
Used to anchor various assemblies by insertion into a drilled hole of a shaft or pin and spreading the points to hold the assembly in position. When used with a castle or slotted nuts, it becomes a safety locking device. |
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Material |
1010 or equivalent low carbon steel. |
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Clevis Pins |
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Description |
A solid with a cylindrical head, chamfered point, and drilled hole through the side of the pin, slightly above the end. |
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Applications / Advantages |
Designed to be used with a cotter pin to connect two forked ends of one object to another structural member, such as attaching a pipe hanger to support beam. |
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Material |
1010 or 1018 low carbon steel. |
