Is used in materials with low tensile strength which makes threads more Most commonly used type for general engineering applications. Thread is intended for general purpose fastening operations. Thread interchangeability among these three nations. ![]() Long Screw (Full Body Screw): Screw which is not threaded for full length.įorm used by the United Kingdom, Canada, and the United States to obtain screw F value.ĭesignation: Product Name, Designation of the Standard, Nominal Size - Thread Pitch x Nominal Length, Material, Protective Finish (if required) Ex: Hexagon Socketįlat Countersunk Head Cap Screws, ASME B18.3, 0.250 - 28 x 1.750, Stainless Steel The shank of the screw is allowable above the max. Note: 4 A fillet between the conical bearing surface of the head and Note 3: The protrusion limits shown shall apply only when the gaging diameter is exactly indicated. ![]() Hole countersunk to 82 deg, in which a screw having max. Note 2: Maximum sharp value is a theoretical value and not practical Shank for those screws not threaded to head. Note 1: Body refers to the unthreaded cylindrical portion of the
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