Transcription of Machine Screws - Thread Dimensions
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Tel: 1-800-479-0056 Fax: 1-888-411-2841 Email: Web: Machine Screws - Thread Dimensions L L Major Dia Pitch Dia Minor Dia Axis of screw Thread 2A External Threads for Machine Screws and SEMS ASME B (2002) Nominal Size / Thread TPI Type Major Diameter Allowance Max Min Pitch Diameter Max Min Tolerance tensile Strength* Stress Area in2 lb min (Steel Screws only) 0-80 UNF.
not subject to tensile testing. A machine screw pre-assembled with a free-spinning lock-washer. A permanent assembly with the washer held in place by the major diameter of the screw thread being larger than the hole of the washer. The washer/screw assembly acts as a self locking mechanism. Machine pre-assembly increases productivity and lowers
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