NOTE: See the Flange Hole Diameter Reference Chart to check hole diameters for your specific flange.
42050-T (threaded) - for flanges with holes 1/2" to 1-7/16" in diameter.
42050-TL (large threaded) - is for flanges with holes up to 1-15/16" in diameter.
42050-TM (threaded - MINI) - for flanges with holes 5/16" to 63/64" in diameter. Stud has a 5/16-18" thread.
42050-TXL (extra large threaded) - is extra large and designed to be light weight for easier handling. Extensions are included to accommodate thicker flanges. Works with flange holes 5/8" to 3.0" diameter.