Dottie Fully threaded tap bolt has thread size of 1/4 – 20, thread length of 3-inches and 20 TPI. This tap bolt with 7/16-Inch hex head, has type UNC continuous thread. It measures 3-Inch x 1/4-Inch Dia. Grade 2 low-carbon steel construction of this tap bolt ensures longer service life. Zinc-plated finish on bolt surface adds extra protection against corrosion.

Special Features:Features: Continuous Thread Allows for Take up Adjustment, Machine Bolt