Spanner nuts are used for security when future removal is anticipated. Installation and removal of these anti-theft security nuts require a special spanner nut driver. Made of a Non-Ferrous Rust-Resistant Zinc Alloy.

Hex nut breaks away when nut is tightened leaving only the tamper-resistant conical portion remaining. No special tool is required. These tamperproof nuts use standard wrench for installation. Also, these anti-theft security nuts should be considered non-removable. Tamper-resistant aluminum nuts. Check out also our selection of stainless steel sex bolts.

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