Designed for aerospace environments, the 27S3-3 features a flush Phillips-head design and a zinc/cadmium-plated steel construction, providing strength, corrosion resistance, and reliable retention under vibration and operational loads. The quarter-turn mechanism allows maintenance personnel to quickly install or remove panels while maintaining a positive lock during flight operations.

Key Features
Manufacturer: Camloc / Aircraft Fastener Series
Part Number: 27S3-3
Description: Stud – Turnlock Fastener Assembly
Series: Camloc 2700 Series
Fastener Type: Quarter-turn stud
Head Style: Phillips flush head
Material: Steel
Finish: Zinc/cadmium plated for corrosion resistance
Stud Length: Approximately 0.670 in (17.01 mm)
Grip Range: Approximately 0.090–0.119 in total material thickness
Drive Type: #2 Phillips
Application: Aircraft removable panels, cowling, fairings, inspection covers, and airframe access panels 

Benefits
Provides fast and secure attachment of removable aircraft panels
Designed for repeated maintenance removal and installation cycles
Maintains reliable locking performance in high-vibration environments
Flush-head design minimizes aerodynamic interference and surface protrusion
Lightweight construction supports aircraft weight-saving requirements
Typical Applications
Engine cowling panels
Aircraft inspection doors
Fairings and access panels
General airframe removable structures
Cessna and other fixed-wing aircraft applications using Camloc 2700 series fasteners