NAS 1801

NAS 1801 is a high-strength hex head screw designed for demanding aerospace and high-performance industrial applications. It features a cruciform recess with a full-thread design, providing reliable fastening, excellent torque transfer, and uniform load distribution.

Manufactured in accordance with Aerospace Standard (NAS) specifications, NAS 1801 fasteners ensure consistent performance in critical assemblies where strength and precision are essential.

Product Description

Standard: NAS 1801
Fastener Type: Hex Head Screw
Recess Type: Cruciform Recess
Thread Type: Full Thread
Material: Alloy Steel
Minimum Tensile Strength: 160 KSI (Ftu)
Equivalent Materials: AISI 4140 / 4340 / 8740

These screws are engineered to deliver high mechanical strength, excellent fatigue resistance, and dependable performance under high loads.

Key Features

High-strength alloy steel construction
160 KSI tensile strength for critical load applications
Excellent fatigue and wear resistance
Hex head design for secure torque application
Cruciform recess for controlled installation
Full thread for strong and uniform clamping force

Applications

NAS 1801 fasteners are widely used in:

Aerospace and Aviation Structures
Aircraft Engines and Mechanical Assemblies
Defense and Military Equipment
High-Performance Industrial Machinery

Why Choose NAS 1801 from UPS Lakshmi?

With over 65 years of manufacturing expertise, UPS Lakshmi is a trusted supplier of aerospace and precision fasteners worldwide.

Strict quality control and inspection
Aerospace-standard manufacturing processes
High dimensional accuracy and consistency
Reliable performance in critical operating conditions
Custom sizes and bulk supply available