Nas523 Pdf Top Jun 2026

Unlike standard hex bolts, flange bolts (often called frame bolts) integrate a washer-like flange directly beneath the head. This design distributes the clamping load over a larger surface area, protecting the assembly material from damage and preventing the bolt from loosening due to vibration—a critical requirement in automotive applications.

Detailed specifications and identification guides can be found on sites like or through standards providers like GlobalSpec . NAS523 Rivet Identification Guide | PDF - Scribd nas523 pdf top

Official documentation for this standard can be found through aerospace standards repositories and educational guides: Unlike standard hex bolts, flange bolts (often called