Tamper Proof Shear Nuts Zamak 5 Zinc Alloy

Breakaway Tamper Proof Security Nuts

Zamak 5 Zinc Alloy Shear Nuts


  • Also referred to as Breakaway Nuts
  • Tapered outer diameter
  • Makes gripping the nut very difficult after installed
  • Installed using a standard wrench or socket
  • Once maximum torque is reached, hex portion snaps off the installed portion
  • Leaves only a coned nut behind

Zamak 5 Break-Away Nut Specifications

Nut Sizes Hex Drive Torque Guide Bottom Diameter (Max) Pre-Installed Height Nut Height
#10-24 7/16" 30-40 inch/lbs 0.4375" 0.390" 0.18"
1/4"-20 9/16" 50-60 inch/lbs 0.5625" 0.470" 0.22"
5/16"-18 5/8" 90-110 inch/lbs 0.6250" 0.500" 0.22"
3/8"-16 3/4" 140-150 inch/lbs 0.7500" 0.580" 0.25"
1/2"-13 1" 330-360 inch/lbs 1.0000" 0.750" 0.35"
5/8"-11 1-1/8" 330-360 inch/lbs 1.1250" 0.800" 0.37"
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Product Specifications
Color
Silver
Corrosion Resistant
Yes
Drive Style
External Hex
Material
Zamak 5 Zinc Alloy
Product Type
Breakaway Nut
Security Fastener
Yes
Thread Direction
Right Hand
Thread Standard
UNC
Thread Type
Coarse
Tolerance (IFI)
Actual measurements may vary slightly +/- depending on production run within IFI Tolerances
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Size:
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Size
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