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Encyclopedia of Fasteners & Hardware Items
 
Courtesy of FastenerMart.com
 
—  PINS & CLIPS  —

Clevis Pins

Clevis Pins are used to preserve alignment and hold parts in position for temporary and permanent applications. Lock the pins with either cotter pins or hairpin cotter pins. Measure length from under the head.

Clevis Pins, Universal

Also Called: Adjustable Grip Clevis Pins

Universal Clevis Pins have multiple holes, allowing the user to choose the appropriate length; excess length may be removed. The pins lock in place with either cotter pins or hairpin cotter pins.

Cotter Pins

Cotter Pins are manufactured with one prong slightly longer than the other. This feature makes them easy to open. They are used with drilled shafts, clevis pins, and slotted nuts and castle nuts. Measure length from under the head to the end of the short prong.

Dowel Pins

Dowel Pins are used as guide pins, hinges, shafts, stops and wrist pins. They are also used for aligning parts, in assembly work as feeler gauges, as valves and valve plungers on hydraulic equipment, as roller bearings in truck wheels and casters, in many production operations as plug gauges, as position locators on indexing machines, and as fasteners for machine parts and laminated sections. Pull-Out Dowel Pins are designed for use in blind holes.

Hairpin Clips

Easy to install and remove, Hairpin Clips are designed for use on grooved shafts. Size is specified as Wire Diameter x Nominal Shaft Size.

Hairpin Cotter Pins

Also Called: Hairpin Cotters, Bridge Pins, Hitch Pin Clips

Their spring qualities make Hairpin Cotter Pins perfect in applications requiring quick assembly and disassembly. Commonly used with Clevis Pins. Size is specified as Shaft Diameter (Minimum-Maximum) x Wire Diameter x Overall Length.

Linch Ring Pins

Also Called: Linch Pins, Lynch Pins, Click Pins

A self-locking spring steel ring secure Linch Pins in place.

Safety Snap Pins

Also Called: Snap Pins, Linch Pins, Lock Pins

Safety Snap Pins are a single device that replace clevis and cotter pins used together.

Spiral Spring Pins

Also Called: Coiled Spring Pins

Wound in a spiral, Spiral Spring Pins align parts and hold them in position. Because of their coiled-spring action, they can be used with out-of-tolerance, out-of-round and irregularly-shaped holes. They also absorb vibration and shock better than regular spring pins. Ends are beveled (chamfered) to simplify insertion.

Spring Pins

Also Called: C Pins, Expansion Pins, Roll Pins, Slotted Spring Pins, Split Pins, Spring Dowel Pins, Tension Pins

Spring Pins align and hold parts in position. Ends are beveled (chamfered) to simplify insertion.

Taper Pins

If parts need to be disassembled often and the removal of dowel pins would cause excessive hole wear, consider using Taper Pins. Designed to align and hold components in position, they are installed by simply driving them into a tapered hole. Taper pins have slightly rounded ends and a continuous taper of 1/4" per foot.

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