This module fulfills part of the requirements of Singapore Airworthiness Requirements Part 66 (SAR-66) Module 6 (Materials and Hardware). The module introduces students to the different types of fasteners used in aviation such as bolts, studs, screws, locking devices, and rivets. It will cover the different specification and identification of these fasteners. Other than fasteners, topics covered include hydraulic and pneumatic pipes / hoses and unions, springs, bearings, transmissions system, and control cables commonly used in aircrafts. In addition to the mechanical hardware, students will also be exposed to electrical cables, connectors and its installation.