Twist & Close Tub Trim Set with Two-Hole Overflow Faceplate • Bath tub trim set with twist & close drain plug and faceplate • Twist & close bath tub drain plug (D331) • 1-1/2 in. NPSM (1-7/8 in. - 11-1/2 UNC) coarse thread exterior • Two-hole faceplate (D329) • Two (2) 1/4 in.-20 x 1-1/2 in. plated brass screws included • Fits two-hole elbows • Heavy duty metal construction • Do not use plumber"s putty for installation