ASME B18.3 pdf download Socket Cap, Shoulder, and Set Screws, Hex and Spline Keys (Inch Series) 1 INTRODUCTORY NOTES 1.1 Scope 1.1.1 This Standard covers complete general and dimensional data for various types of hexagon and spline (fluted) socket cap screws, shoulder screws, set screws, and hexagon and spline keys recognized as an American National Standard. Also, included are appen-...