2PC ZoroSelect Machine Key Tapered Plain 3 L

2PC ZoroSelect Machine Key Tapered Plain 3 L Tapered Machine Key Gib Head Steel Plain Finish 3 In Length 3/16 In Square 5/16 In Head Height +0.002 In Thickness Tolerance -0.100 In Length Tolerance Tensile Strength 64 000 PSI Rockwell Hardness B85 Tapers 1/8 In Per Ft Holds Pulleys and Gears on Transmission Shafts