NAS1102 CSK Screws: Advanced Fastening Solutions for High-Performance Applications

NAS1102 CSK screws are a staple within motorsport engineering, chosen for their high-strength properties and precise manufacturing standards. These aerospace-grade fasteners feature a 100° countersink angle and are manufactured from alloy steel with a tensile strength exceeding 160,000 PSI (1100MPa).

Key features of NAS1102 screws include:

High-quality alloy steel construction ensuring durability and reliability
Precise manufacturing tolerances for consistent fitment
100° countersink angle for optimal load distribution

Engineers particularly value these fasteners for their reliability in high-stress applications and their ability to maintain joint integrity under dynamic loads. The 100° countersink angle provides excellent load distribution while ensuring a flush finish, crucial for aerodynamic surfaces.

Key Benefits of Countersunk Screws

Flush Surface Finishing: Allows fastener heads to sit flush with or below the surface level, creating a smooth, flat finish, enhancing aesthetics.
Improved Safety: Eliminates protruding screw heads that could catch on clothing or cause injury.
Aerodynamic Performance: Reduces drag in applications where air or fluid flow is critical
Stress Distribution: Helps distribute stress more evenly around the fastener head

Hole Design Considerations

When implementing countersunk holes, it’s important to consider the following:

Material thickness and material properties and potential for stress concentrations
Correct countersink angle (typically 82°, 90° or 100°)
Depth or diameter of countersink to ensure proper fastener seating