The diameter equal to the external diameter of the threads or the overall diameter of the part. (Nominal diameter is more of a label than a size. For example, a bolt and nut may be described as being ½" diameter. But neither the external threads of the bolt nor the internal threads of the nut are exactly .500 in diameter.

Metric Hex Bolt Dimensions **All measurements in mm** NOMINAL SIZE RANGE (D) BODY DIA. THICKNESS OF HEAD [HT] ACROSS FLAT OF BOLT ACROSS CORNER OF BOLT D (MAX) D Metric Bolt Pitch Chart Size (mm) Max. Tightening Torque (Nm) Class Grade 8.8 Grade 9.8 Grade 10.9 Grade 12.9 M5 7.0 7.8 10.0 11.7

To know the diameter, you need to refer to a gauge guide to match the gauge with a fraction of an inch. For example, a #0 gauge is 1/16 inch in diameter. A #1 gauge is 5/64 inch, and #2 gauge is 3/32 inch. Lastly, count the threads in one inch to get the thread spacing value.

3-48 x .5 Let's break it down together: The first number is the screw gauge. Since it's #3, we can look at the chart and determine the major diameter and threads per inch. The second number is the TPI. 48 threads per inch indicate that the screws are coarse, not fine. Finally, the third number indicates the screw length.

All values other than suggested torque amount are sourced directly from flange bolt charts and flange torque charts in the ASME B16 metric bolt sizes pdf 9Bolt Sizes M6 Thru M30 8 Metric Studs; Bolts and Screws Includes 100 each: M2, M3, M4, M5, and M6; 50 each: M8; 25 each: M10 and M12 Metric fasteners are specified with a thread pitch instead

Metric Flange Bolt Head/Wrench Size. Print this page. Flange Bolt Diameter. (mm) Head/Wrench Size. (mm) DIN 6921 (1983) JIS B1189 (Type 2 2005) 5.

The defined diameter of metric bolts is actually slightly larger than the actual diameter. So an M6 bolt would have a diameter that’s slightly under 6mm. 2. Pitch: the measurement between

Largest range of all types of bolts and nuts, socket screws, washers, machine screws, rivets, screws, self-drillers, boat hardware, masonry fasteners. Metric to Imperial Chart JavaScript seems to be disabled in your browser.

Metric Threads - Coarser Threads The table below indicates some of the most used coarse threads up to size M 68. Note that the ISO 724 standard specifies threads up to M 300. The table below is not complete. 1) For metric threads pitch is the distance between threads. 1 mm = 0.039 inches Metric Bolts - Proof Loads

Torque Specifi cation Chart BOLT size-pitch LUBRICATED WITH ANTI-SEIZE in-lbs Nm in-lbs Nm 1/4”-20 96 11 64 7 METRIC GRADE 10 Some sockets especially six sided impact might be marked in these examples with both sizes .

Common metric dimensions for hex bolts from Atlant Rod. All measurements in millimeters