Development of anti-theft wheel lug nut for sedan/ John Paul Casaclang, Jesus Agustine V. Castillo, Gabrielle F. Dumaran, Leon R. Ebitner Iii, and Andrew V. Javier.--

Bachelor's thesis

College of Industrial Technology.--
Bachelor of engineering technology major in mechanical technology option in automotive engineering technology: Technological University of the Philippines,
2023.

Includes bibliographic references and index.

Lug nuts may be small metal fasteners, but they play a crucial role in vehicle safety by
keeping wheels securely attached. This ensures that drivers can brake, turn, and
accelerate without the risk of wheels coming loose. However, wheel theft is a growing
issue in the Philippines, as highlighted in the report Wheel Theft. This report explores the
motivations behind car part theft, the methods thieves use to steal wheels, and the
economic impact of such theft, along with recommended prevention strategies.
Addressing the issue of wheel theft, the project Development of Anti-Theft Wheel Lug
Nut for Sedans was created to provide an innovative solution for car owners who lack
secure parking options. This project aims to improve upon current anti-theft lug nut
designs, which have proven vulnerable to tampering. The new anti-theft lug nut features
an embossed inverted "T" shape embedded in the lower part of the locking mechanism,
adding an additional layer of security. The system consists of a specially designed lug
nut and a unique socket tool required to fasten or unfasten it, making it challenging for
thieves to remove. The development process included multiple tests to ensure the
durability and effectiveness of the prototype. These tests involved assessing the
prototype’s strength, evaluating the torque it could withstand, and comparing its security
against standard lug nuts when using basic hand tools. The aim was to create a more
robust anti-theft device that provides better protection for vehicle wheels.