Aircraft Rivet

Updated: 2026-09-19

Overview

Aircraft rivets are precision-engineered fasteners critical to aerospace assembly, providing permanent joints for airframe structures. Unlike general-purpose rivets, they undergo rigorous testing to meet aviation standards like NAS (National Aerospace Standards) or MS (Military Standards). These rivets must withstand extreme forces, including vibration, aerodynamic loads, and temperature fluctuations from -55°C to +300°C. Their designs often incorporate features like flush heads for aerodynamics and locking mechanisms to prevent loosening during flight.

Structure and Working Principle

Aircraft rivets typically consist of a head and shank, installed by deforming the tail to create a second head. Common types include solid (driven with a bucking bar), blind (for single-side access), and specialty rivets like Hi-Loks (combining rivet and bolt properties). The installation process involves precise hole drilling, rivet insertion, and controlled deformation using hydraulic or pneumatic tools. Proper installation ensures uniform clamping force and prevents micro-cracks that could compromise structural integrity under cyclic loading.

Key Features

Material selection is paramount—aluminum alloys (e.g., 2117-T4) offer lightweight solutions, while titanium rivets handle high-stress areas like wing spars. Corrosion-resistant coatings like anodizing or alodine are often applied. Flush-head designs minimize drag, critical for external surfaces. Some variants feature sealed ends to prevent fuel leakage in tanks. Shear strength typically ranges from 20,000 to 60,000 PSI, with fatigue resistance being a key performance metric.

Application Areas

Primary applications include airframe assembly (skin-to-frame attachments), wing rib fastening, and control surface linkages. Blind rivets are used in areas with single-sided access, such as trailing edges. Military aircraft often use high-shear rivets in load-bearing joints, while commercial planes prioritize weight savings with aluminum options. Helicopters employ vibration-resistant designs for dynamic components like rotor mounts.

Maintenance and Precautions

Regular inspections check for rivet cracks, corrosion, or loosening using NDT methods like eddy current testing. Replacement requires drilling out old rivets without damaging parent material. Storage should prevent moisture exposure to avoid galvanic corrosion. Installation demands calibrated tools—underdriving causes weak joints, while overdriving may fracture the rivet or distort the metal sheets.

B2B Procurement Guide

Procure from NADCAP-certified manufacturers with aerospace quality systems (AS9100). Specify standards (e.g., NAS1097 for countersunk heads) and material certifications (AMS or Mil-Spec). Bulk pricing applies for orders above 10,000 units, with lead times of 4-12 weeks for specialty materials. Consider consignment stocking for high-volume MRO needs. Always verify traceability documentation for safety-critical applications.