About Thread Types
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We offer multiple thread types and mounting hardware to fit your specific vehicle.  How do we do this?  By machining our own hardware out of solid brass and aluminum rods using our DSMA screw machine!

To determine your vehicle's thread type or mounting configuration, match your shifter with one of the configurations listed below.  If you are unsure which configuration best fits your vehicle, just provide us with the make, model, and year of your vehicle and we will match it for you using our extensive thread database and 30 years of experience!

Standard Threads
Each standard shift knob we offer is molded with 1/2-20 brass threads built-in and comes with a second brass adapter to fit your specific vehicle.  The image to the right shows our brass threads molded flush with the bottom of the shift knob.  When applicable, the brass threads and adapter are provided free with the purchase of a Flameball shift knob.
   
Spline Mount (No Threads)
Some vehicles possess smooth or splined shift posts that do not contain threads.  For these types of vehicles, we manufacture the machined aluminum mounting hardware as shown to the right.  When applicable, the mounting hardware and installation kit are provided free with the purchase of a Flameball shift knob.  For more information on the installation kit, see our accessories section.
   
Special Thread Configurations
Some vehicles possess oversized shift posts or special thread configurations.  For these vehicles, an additional $5.00 (USD) will be charged for each shift knob to cover the costs of the additional production time.  Our current list of known special thread configurations includes the Chevrolet Corvette, Chevrolet Camero, Pontiac Firebird, Pontiac Trans Am, and Pontiac Grand Am.  For example, the threads shown on the right were recessed to accommodate a Corvette shift post.
 

     
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