McMaster 4771A39 Aggressive Cleaning Brush for Flat Surfaces, 2 3 4" Brush Diameter, 3 8" 24 Thread with Stainless Steel Bristles STMT71648 Tap Material High Speed Steel Tap Material High Speed Steel Tap Chamfer Taper Number of Flutes 4 Tap Thread Type UNC Tap Style Straight Flute (Hand) Number of Pieces 1 Thread Direction Right Hand List Number 101 Tap Finish Bright Tap Grouping Tap Standards ANSI Cutting Direction Machining Right Hand Series 101 Measurement System Fractional Inch Thread Limit H4 Shank Type Machining Straight Secondary Material Application Aluminum Item One Hole Conduit Strap Sub Category Straps Material Steel Nominal Conduit Pipe 1 2" For Use With Rigid IMC Finish Zinc Wire Range 0 For Use With Angle Grinders Bristle Material Stainless Steel For Use On Aluminum 0000 USMCA Qualifying Yes