ASME B18.11-1961 (R2017)

This standard establishes head types, their dimensions, and lengths of slotted head miniature screws, threaded in conformance with American Standard Unified Miniature Screw Threads, ASA B1.10.

This standard is predicated upon information derived through research of the maximum using industries.. The inclusion of four head types and the given thread sizes in the data tables is not intended to imply that all of those described in this standard are stock production items. Preferred diameter pitch combinations for general use are shown in bold type in the tables. Consumer interests are requested to consult manufacturers' catalogs for lists of current stock production miniature screws.