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Industry knowledge:
A screw thread is a helical groove formed on an internal or external diametrical surface and is described by various terms. These terms are described here:
Thread Axis: An imaginary line running through the centre of the thread screw.
Major Diameter, dM: The diameter of an imaginary cylinder (concentric to the thread axis) that envelopes and touches the crest of the external threads or the root of internal threads.
Minor Diameter, dm: Also called the root diameter, this is the diameter of an imaginary cylinder (concentric to the thread axis) who’s surface touches the thread roots.
Pitch Diameter, dP: The diameter of the imaginary cylinder (concentric to the thread axis) that intersects the surface at the point where the thread thickness equals the space between the threads or the diameter at which the tooth thickness = pitch/2. Refer to the graphic further down this page. On a sharp V thread form as per the image below, the pitch diameter would be located equidistant between the sharp major and minor diameters. However, few threads are actually formed like.We insist on offering high quality creation with fantastic small business concept, honest gross sales plus the best and fast assistance. it will bring you not only the high quality solution and huge profit, but one of the most significant is to occupy the endless market for Quoted price for China Wholesale Stainless Steel A2 A4 304 316L DIN 912 Allen M1.6 M2 M2.5 M3 M4 M5 M6 M7 M8 M9 Hex Socket Head Cap Inner Hexagon Screw, As we’re moving forward, we continue to keep an eye on our ever-expanding merchandise range and make improvement to our services.
Quoted price for China Stainless Steel Screw, DIN912 Socket Head Screw, “Good quality and reasonable price” are our business principles. If you are interested in our items or have any questions, you should feel free to contact us. We hope to establish cooperative relationships with you in the near future.