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O'Brien Truckers - Shifter Knob Standard Thread Adapters

Shifter Knob Standard Thread Adapters includes these four standard thread adaptors:

3/8 x 16

3/8 x 24

5/16 x 18

1/2 x 20

Use for Shift Knobs drilled and tapped with a 16mm internal thread like our Full Grip and Skull Shift Knobs.

If bought with one of our shift knobs the cost is $5 (limit one set per shift knob). If bought on an order without one of our shift knobs the cost is $10 per set.

O'Brien Truckers was established in 1978 Being rodders ourselves, we like to convert our Customers into Friends. If you like a personal touch when you place an order, you will enjoy doing business with O’Brien Truckers. We specialize in manufacturing custom-made Car Club Plaques, Toppers, Buckles, and Key chains for clubs and organizations throughout the world. In addition, we are the leading manufacturer of functionally improved versions of traditional air cleaners and custom engine accessories provided to the rod and custom market. Our U.S. manufactured products are cast from pure ingot 319 alloy, which produces the highest reflective shine and is extremely durable. Learn all about us here


29 A Young Road,
Charlton, MA 01507