Stud – 14MM x 1.5 x 49MM Long – Bullet Nose

• • Application: Ideal for endurance racing, time attack, autocross, and off-road racing platforms requiring lightning-fast, zero-fail wheel swaps.

  • Thread Pitch: 14mm x 1.5 (Standard heavy-duty metric thread specification common to European track cars and modern off-road racing hubs).

  • Overall Length: 49mm (Compact, space-saving length—perfect for factory or standard aftermarket wheel profiles where excess stud protrusion is not desired).

  • Nose Profile: Bullet Nose. Features a smooth, rounded, unthreaded starter tip engineered to guide the lug nut flawlessly onto the thread path.

​Premium Construction

• • Material: High-Strength Alloy Steel. Forged from a premium structural steel alloy selected for its immense tensile yield strength and superior resistance to shear failure under violent rotational loads.

  • Manufacturing Process: Cold-Headed & Rolled Threads. Unlike cheap studs with brittle cut threads, these threads are hydraulically rolled into the steel. This compressing process ensures a smooth, uninterrupted grain flow within the metal, vastly improving fatigue resistance and eliminating thread stripping.

  • Structural Safety: Built to withstand the extreme heat generated by heavy braking zones without losing its structural heat-treatment tempering or stretching under load.

🏎️ High-Performance Wheel Stud Installation & Engineering Tech Notes

Converting a hub to wheel studs or replacing sheared studs requires strict adherence to torque specifications and mechanical tolerances to prevent catastrophic wheel detachment:

• 🛠️ Verifying Minimum Thread Engagement: When installing your wheels over these 49mm bullet nose studs, you must guarantee adequate thread engagement into the lug nut. For a 14mm x 1.5 thread profile, safety regulations dictate a minimum of 9.5 to 10 full turns of the lug nut (equivalent to a minimum thread engagement depth equal to the diameter of the fastener, or 14mm). Because a portion of this 49mm length includes the unthreaded bullet tip, ensure you are not running thick wheel spacers, as they will prevent the lug nut from achieving the required minimum safety thread depth.

• ❌ Never Use Impact Guns for Final Torque: While air or electric impact wrenches are convenient for rapid teardowns in the pit lane, they should never be used to zip lug nuts tight on high-strength alloy studs. Impact guns apply violent, uncontrolled torque spikes that can easily stretch the steel beyond its elastic limit, causing microscopic fractures. Always start the lug nuts by hand to allow the bullet nose to self-align, spin them down, lower the vehicle, and finish tightening using a calibrated click-type torque wrench in a star pattern.

• ❌ Keep Thread Contact Surfaces Clean and Dry: Unless explicitly specified by a racing sanctioning body or chassis manual, wheel stud threads are designed to be torqued dry. Never apply standard chassis grease, anti-seize, or penetrating oils to the 14mm x 1.5 thread faces before torquing your wheels. Lubricating the threads artificially reduces friction, which misleads your torque wrench. This causes you to over-stretch and permanently deform the stud at standard torque values. Clean the threads using a dry wire brush and brake cleaner only.

• 📐 Check Hub Face Flushness: If you are pressing this stud into a brake rotor or wheel hub flange from the back, ensure the shoulder head seats absolutely flush against the back face of the hub. If a stud is pressed in slightly crooked or is left hanging out by even half a millimeter, the dynamic load of driving will force the stud to seat itself later. This instantly introduces slack into the assembly, loosening your lug nuts while the vehicle is in motion.

• ⏱️ Mandatory Retorque Schedule: High-strength steel alloys undergo a minor settling phase immediately after installation as the wheel seats against the brake rotor hat. Always recheck and retorque your lug nuts after the first 50 to 100 miles of street driving, or after the very first heat cycle/track session. 

What’s Included

• One wheel stud

Warranty

Backed by a 1-year warranty for peace of mind.