23 rows Machine Screw Size Chart and Conversion Tables. A #8 screw size is .164 fraction of an inch. The diameters listed in the chart below are in fractions of an inch, so the #12 is just shy of 1/4 inch. A more detailed table with thread count can be found below, along with tap drill sizes . Detailed screw sizes charts . US Machine Screw Diameter and Thread Chart Our printable 'lay-over' sizing chart for identifying US machine screw diameter and thread count. Metric Machine Screw Diameter and Thread Chart Our printable 'lay-over' sizing chart for identifying metric machine screw diameter and thread pitch. Drive Sizes For. Phillips; Star drive Machine Screw and Drill Size Chart (English ) Clearance Hole Drills Screw Designation Tap Drill Size Close Fit Loose Fit Number Diameter Pitch Tap Size Drill Diameter Drill Diameter Drill Diameter or dia. (inch) (threads/inch) Size (inch) Size (inch) Size (inch) #0 0.06 80 0-80 3/64 0.0469 52 0.0635 50 0.07

IMPORTANT: Make sure to print this chart to Actual Size (no scaling). After printing, measure the ruler in the margin to ensure correct scale. US Machine Screw Sizes Common Fasteners: Anchors, Bolts , Screws Nails Nail Size Chart : Expansion Bolt , often called the Molly bolt , for Hollow Walss (plaster board) Toggle Bolt for Hollow Walls Expansion Shield for Masonry Fiber Anchor for Masonry Wood Screw Heads Shank by Gauge, Length in Inches Types: Steel machine screws of diameters No. 6 to 1/2” inclusive, which are shorter than either 1/2” or 3D (where D is the nominal screw size in inches) are not subject to tensile testing. Such steel machine screws of a size to be tested shall meet the tensile

Threads shall be Unified inch coarse thread series (UNC), Class 2A, for all stud bolt sizes 1 in. and smaller, and Unified inch 8 thread series (8 UN), Class 2A, for all stud bolts larger than 1 in., in accordance with ANSI/ASME B1.1. Acceptability of screw threads shall be determined based on ANSI/ASME B1.3. LENGTH OF THREAD. M3 and larger thread is tapped thru 25.4 MM in length. Stainless Steel Nylon Parts: M2.5 thread is tapped thru 9.6 MM in length M3 thread is tapped thru 12.7 MM in length. M3.5 and larger threads are tapped thru 25.4 MM in lengths. For lengths longer than specified above, see Depth of Thread Chart . Flange Bolt Chart and Flange Stud Size in mm In this article, I have covered Flange Bolt Chart and Flange Stud Size . Diameter and Lengths of the stud and bolt are covered in flange standard ASME B16.5 B16.47. as you are going to use bolt and stud to connect flanges.

Metric External (Fasteners) Thread and Fastener Sizes M20 - M50; ANSI/ ASME EXTERNAL Screw Thread Size Chart . All units are in inches . Unified Screw Threads per. ANSI/ASME B1.1-1989 (R2001), R2001) Nomenclature, are used. Acceptability criteria are described in ANSI/ASME B1.3M-1992 (R2001).