Shear Nut. Shear Nuts are a Break-Away type of security nut, that provide a permanent fastening that is very hard to remove again once installed. Tamper proof security shear nuts are among the most popular security nuts available and are available in a range of materials to suit indoor or outdoor applications.
Size Range
Diameter Metric: M8 to M20
Inch: 5/16" to 3/4"
Length ----