Spline Bolts

In the demanding worlds of automotive and aerospace engineering, where reliability can mean the difference between success and catastrophic failure, fastener selection is far from trivial.

We are proud to highlight our precision-manufactured 5/16 x 24 UNF spline bolts, engineered specifically for applications where high vibration, extreme loads and long-term durability are paramount.

Modern machinery operates in increasingly demanding conditions. Automotive engines cycle thousands of times per minute. Aircrafts experience constant vibration from engines and aerodynamic forces. Industrial equipment runs continuously under varying loads. In each of these scenarios, conventional fastening methods face significant challenges.

Spline bolts represent an advanced fastening solution that addresses the limitations of traditional methods through intelligent engineering design. Unlike the conventional hex head or socket head fasteners, spline bolts feature a specialised drive system consisting of multiple radial grooves that engage with a corresponding drive tool.

The spline interface distributes driving torque across multiple contact points rather than concentrating forces at a few locations.

In an era where performance expectations are continuously on the rise, fastener technology must evolve beyond traditional solutions. The 5/16 x 24 UNF spline bolt represents this evolution. A precision-engineered component that delivers measurable advantages in fatigue life, vibration resistance and long-term reliability.

For applications in automotive, aerospace, and other demanding industries where high vibration is the norm rather than the exception, spline bolts offer a proven solution backed by engineering principles, real-world testing, and extensive application experience.

For detailed specifications, torque recommendations, material options, custom configurations, or application engineering support, please contact our technical team.

We’re ready to help you select the optimal fastening solution for your demanding applications.