The 691-315 is a Piper OEM aircraft bolt designed for use in fixed-wing aircraft structural and mechanical assemblies. Manufactured to aviation standards, this fastener provides a reliable and secure connection between critical aircraft components while maintaining the strength and integrity required for safe flight operations.

This bolt is commonly used in airframe structures, control system linkages, landing gear assemblies, mounting brackets, and other load-bearing applications where precise fit, high strength, and resistance to vibration are essential. Unlike commercial-grade fasteners, aircraft bolts are produced with strict dimensional tolerances and material specifications to ensure predictable performance under cyclic loading conditions.

Constructed from aerospace-grade steel and protected with a corrosion-resistant finish, the 691-315 is designed to withstand the demanding operational environment of general aviation aircraft, including vibration, temperature fluctuations, and repeated mechanical stresses.

Proper installation requires the use of approved aviation hardware such as washers, bushings, and self-locking nuts, along with adherence to manufacturer torque specifications to ensure long-term reliability and continued airworthiness.

Key features include:

Piper 691-315 aircraft bolt for fixed-wing aircraft applications
OEM fastener designed for structural and mechanical assemblies
Suitable for airframe, landing gear, and control system installations
Manufactured to aviation-grade dimensional and material standards
High-strength aerospace steel construction
Corrosion-resistant protective coating for long service life
Designed for vibration and cyclic load environments
Compatible with approved aviation washers and locknuts
Direct replacement part per Piper IPC specifications
Essential for maintaining structural integrity and aircraft airworthiness