Nut Types
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Hex
A six sided nut. Also referred
to as a finished hex nut.
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Nylon
Insert Lock
A nut with a nylon insert
to prevent backing off.
Also referred to as a Nylock
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Jam
A hex nut with a reduced height.
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Wing
A nut with 'wings' for hand
tightening.
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Cap
A nut with a domed top over
the end of the fastener.
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Acorn
Acorn nuts are a high crown type of cap nut, used for appearance. |
Flange
A nut with a built in washer
like flange.
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Tee
A nut designed to be driven
into wood to create a threaded hole.
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K-Lock or Kep
A nut with an attached free-spinning external tooth lockwasher.
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2-Way Reversible Lock
A lock nut that can be installed either side up. Often used in high temperature applications. |
Coupling
Coupling nuts are long nuts used to connect pieces of threaded rod or other male threaded fasteners. |
Slotted
Slotted nuts are used in conjunction with a cotter pin on drilled shank fasteners to prevent loosening. |
Castle
Castle nuts are similar to slotted nuts but with the slots in a rounded section above the main nut. |
Washer Types
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Flat
A flat washer used to
distribute load. Available in SAE, USS, and other patterns.
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Fender
An oversize flat washer used
to further distribute load especially on soft materials.
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Finishing
A washer used to obtain a
'finished' look. Usually used with oval head screws.
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Split
Lock
The most common style of washer
used to prevent nuts and bolts from backing out.
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External
Tooth Lock
A washer with external 'teeth'
Used to prevent nuts and bolts from backing out.
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Internal
Tooth Lock
A washer with internal 'teeth'
Used to prevent nuts and bolts from backing out.
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Square
A square shaped washer.
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Dock
Dock washers have a larger outside diameter and are thicker than standard. |
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Ogee
Thick, large diameter, cast iron washers with a curved or sculpted appearance. Typically used in dock and wood construction
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Sealing
A neoprene washer bonded to a metal backing. Used to seal out air/water or dampen noise and vibration. |
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