Mechy
Size charts
Printable charts for screws, bolts, taps and threads, inch and metric. Every size has its own link, so you can send someone straight to the row.
Bolt Size Chart (Inch & Metric, with Wrench Sizes)Bolt sizes 1/4 to 1 in and M3 to M24 with threads, wrench sizes (hex, nut, heavy hex), tap drills and grade markings, checked against ASME and ISO.JIC Hydraulic Fitting Thread Size Chart (-2 to -24)JIC 37° flare thread sizes by dash size, -2 to -24: tube OD, thread, and measured male and female diameters. How to identify a JIC fitting safely.NPT Thread Size Chart (OD, TPI and Tap Drills)NPT pipe thread sizes 1/16 to 4 in: threads per inch, actual outside diameter, and tap drills. Why 1/4 NPT measures 0.54 in, and how to tell NPT from BSP.Screw Size Chart (Inch & Metric) + Photo IdentifierScrew sizes #0–#14 and M2–M12 with diameters, threads per inch, metric pitch, tap drills, and wood screw pilot holes. How to read and measure a screw.Tap Drill Size Chart (UNC, UNF, Metric)Tap drill sizes for every UNC and UNF thread from #0 to 1 in and metric M1.6–M24, with decimals, clearance holes, and NPT pipe tap drills.
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