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23 lut 2024 · We provide an accurate UNC and UNF Thread Chart PDF for your reference and download, so that you can quickly understand the dimensions (size in mm) and specifications of UNC/UNF threads!
Basic Thread Dimensions (UNC, UNF & UNEF) The basic dimensions are nominal dimensions of a unified thread profile without allowance and tolerances (The thread class defines that). They are based on standard ASTM B1.1. The basic dimensions can be used for design.
Thread Size/ Standard 75% Thread Effective Equivalent Screw Nut Thread Standard 75% and Class: Cut Thread Clr Tensile Pin Shear Shear Shear Form Thread Tap Drill: Dia: Area: Dia: Area/L: Area/L: Area: Tap Drill:
With this PDF, you can easily identify and convert the thread sizes of bolts and screws from the United Nations to their respective US counterparts. The UN Thread Chart PDF is completely free to download and print, so you can easily keep it handy for when you need to look up thread sizes.
Unified Thread Standard - Coarse, Fine, and Extra Fine.
Table 25 – 32-thread series (32 UN) – Basic dimensions 67 Table 26 – Thread data for unified thread form 68 Table 27 – Diameter increments for UNS threads 69 Table 28 – Allowances for external threads of special diameter/pitch combinations (UNS threads) Classes 1A and 2A 72
Unified Thread Standard coarse fine extra fine coarse fine extra fine UNC UNF UNEF UNC UNF UNEF #0 = 0.0600 – 80 1.524 3/64 in #1 = 0.0730 64 72 1.8542 #53 #53
