UNC Coarse

5/16"-18 UNC Bare Hex Jam Nut 100 Pc. 106-016

Jam nuts are tightened against each other instead of against a material. They are about half of the size of a regular nut. Bare finish fasteners have low corrosion resistance and are a good choice for indoor and industrial applications. Papco Nuts Catalog

1/4"-20 UNC Bare Hex Jam Nut 100 Pc. 106-014

Jam nuts are tightened against each other instead of against a material. They are about half of the size of a regular nut. Bare finish fasteners have low corrosion resistance and are a good choice for indoor and industrial applications. Papco Nuts Catalog

UNC Grade 2 Jam Nut - Plain Steel 329050 - 329350

Jam nuts are approximately half the thickness of a normal hex nut. They are typically used in pairs on a threaded fastener to "lock" something in place.