Back to Main Tech Support Page

Ask a Question

Ask a Question

Technical Questions

Can't find an answer in our Help Center? Submit a question, and we'll get back to you soon.

Need Business/Order Related Support?

Search our Help Center
Get answers to business and order questions from our experienced Customer Service representatives.

Website Feedback

How are we doing? We really are interested in knowing how you feel about DX Engineering. Contact us with your comments - good, bad, great, so-so, or whatever. We want to hear from you!

Secure More Than Just Headers with Stage 8 Fasteners from Summit Racing

Secure valve covers, flywheels, harmonic dampers, and more with these patented locking fasteners.

Why They’re Cool: Stage 8 made its name with locking header bolts. But the company makes fasteners for many other components too—even parts you probably never though needed the security of a locking fastener.

All Stage 8 locking fasteners use a patented system that consists of a grooved hex-head bolt, a retainer, and a snap clip. The retainer fits over the bolt head and locks the bolt against the component, and the snap clip holds the retainer in place. Once Stage 8 fasteners are tightened down, they won't back out.

Summit Racing offers Stage 8 Locking Fasteners for the following components:
• Headers, header collectors, and exhaust manifolds
• Valve covers
• Intake manifolds
• Oil and transmission pans
• Harmonic dampers
• Flywheels and flexplates
• Water pumps and starters
• Distributor hold-down clamps

Summit Racing also carries Stage 8’s X-Lock locking spindle nut kits for Dana 44 and Dana 60 axle (shown in photo). Developed for off-road racing vehicles, the X-Locks replace the OEM jam nut system. Laser-cut from heat-treated and through-hardened 4130 steel that has been heat-treated and through-hardened, the locks can be installed without any special tools. The spindle nut itself can be set to a specific pre-load value, and can be locked within a half-degree of any position so you will never over- or under-torque it.

Link to All Stage 8 Products at Summit Racing