5/8"-18 Accu-Clamp Threaded Shaft Collar Two-Piece Type, SteelSpecifications 3L010FACM UPC Code: 662786027451 Total Width (in.): 1. 188 Series: Solution Weight (lb.): 0. 29 Material: Steel Finish: BLACK OXIDE Screw Size: 10 32 x 5 8 Screw Type: SHCS Outside Diameter (in.): 1. 875 Provides a square and rigid method for mounting components on threaded shafts. Fully machineable face on one side for drilling, tapping, etc. Integral clamp provides high strength, non marring hold. Can be placed anywhere on a shaft1117