Alemite 1720-B Thread Forming Fitting, Straight, 1/8" Special Taper (Pack of 10)

Thread forming fittings have special tapered drive threads to reshape the material in an untapped hole to provide a leak-proof seal. They are most effectively installed by spinning into the untapped hole, but they also may be driven straight into the untapped hole. Thread forming fittings may be replaced by any standard threaded fitting, or by another thread forming fitting. All Alemite thread forming fittings are dyed yellow for identification purposes.