MetricExternal (Fasteners) Thread Designations Sizes M1.6 - M18. Metric External (Fasteners) Thread and Fastener Sizes M20 - M50. Screw Thread Designations, Minor Diameter, Major Diameter, Pitch Diameter. UN Inch Internal Screw Threads Formulas and Calculator per. ASME B1.1. Onceyou know your wire diameter, you need to find out what is the premissable Measurement for your pitch diameter (Depending on the class). Use our Over Wire Calculator to find out! 1 - 16 16-UN : Basic Thread Dimensions (Pitch, minor & major diameters, depth, lead), Tolerance range for all applicable classes and much more. Onceyou know your wire diameter, you need to find out what is the premissable Measurement for your pitch diameter (Depending on the class). Use our Over Wire Calculator to find out! 1 7/8 - 16 16-UN : Basic Thread Dimensions (Pitch, minor & major diameters, depth, lead), Tolerance range for all applicable classes and much more. 38 - 16 UNC : Basic Thread Dimensions (Pitch, minor & major diameters, depth, lead), Tolerance range for all applicable classes and much more * Permisable values for thread Class 2B # Description Value (Inch) VValue (mm) D 1: Minor Diameter: 0.307 - 0.321: 7.798 - 8.153: D 2: (UNC/UNF/UNEF) National Pipe (NPT) Dryseal Pipe (BPTF FineThread Series (UNF/UNRF) is commonly used in precision applications. Because of the larger tensile stress areas, they have high tension strength. However, a longer engagement is required for fine thread applications than for coarse series threads to prevent stripping. 3 ⁄ 4 - 10: 0.6850: 0.302: 0.334: 3 ⁄ 4 - 16: GeneralNote: All dimensions expressed in inches. Supplements: Thread calculators and charts; ASME UN screw thread calculator; Reference: ASME B1.1-2003, Unified Inch Screw Threads (UN and UNR Thread Form) PurchaseLimit Thread Plug Gauge (UNF) from SOKUHANSHA, FA & metal molding parts, industrial tools and consumables. (!) Ridge 16: 2B: For inspection: HRC58～62: SKS-3 ₹ 11,469.76 1 Piece(s) The specifications and dimensions of some ThreadSize SAE J475 (ISO R725) D Min. Dia. J Full Thread Depth, Min. K O Min. Dia. P(4) Min. S(2,3) H 3/4 -12 UNF-2B 0.609 0.750 0.130 1.250 0.9060.0941.1481.625 15 If face of boss is on a machined surface, dimensions Y and S need not apply. 4. Tap drill depths given require use of bottoming taps to produce the specified Vay Tiền Nhanh Chỉ Cần Cmnd Asideway.

3 4 16 unf 2b thread dimensions