Tamper Proof Nuts

LOSS PREVENTION FASTENERS carry’s a complete line of Tamperproof  – Security Nuts -  Slot-Lok®, Penta® / Pentagon, T-Groove®, Tork-Nut®, Spanner® and T-Slope®.

LPF® is constantly researching and testing the newest and best Tamperproof  – Security fasteners  from around the globe.  Check back on a regular basis for updated fasteners on our site.



tgrooveT-Groove® Security Nuts offer easy installation. Low cost makes them the ideal fastener for large or small jobs. Available in Zinc Plated Steel, Stainless Steel and sizes from 10-24 up to 1″-8 (some Metric sizes available). More Info »
Price: $0.00


slot-lok- 30% More Torque - Unique design resists pliers & other gripping devices - Available in stainless steel & case hardened steel - Sizes 6-32 to 3/4-10 3mm to 20mm
Price: $0.00


pentagonPentagon® Security nuts are high security fastener used in a variety of applications. available in 316 Stainless Steel material. More Info »
Price: $0.00


tork-nutTork-Nut Security Nuts are one of the more secure nuts available. The top nut breaks off after installation leaving you with an installed nut with no drive. Easy to install but very difficult to remove. Available Zinc Alloy & Aluminum material. More Info »
Price: $0.00


tslopeT-Slope® Security Nuts are the most difficult install and remove. Available in Zinc Plated material. More Info »
Price: $0.00


spannerSpanner® Security Nuts are a simple design with an excellent performance record. Easy to install and difficult to remove makes them an ideal candidate for any job. Available in Zinc Alloy Material. More Info »
Price: $0.00