english/ metric bolt substitution table equivalent metric bolt . 8.8.3 f - 568 class 9.8 f - 568 class 10.9 a - 325m type 1 or 2 a - 325m type metric english 3 (mm) ( inches ) hole diam (mm) english - astm grade specified a - 449 type 1 a - 354 grade bd m6 m8 m10 m12 m14 1/4 5/16 7/16 1/2 9/16 7 9 12 14 16 not req'd not req' Metric Fasteners Inch Threads vs. Metric Threads Metric Grades Metric Wrench Sizes By Guy AvellonLike it or not, Metrics is here to stay and we will soon be converting everything over to metrics. Thomas Jefferson was initiating the reform in his day and we have been saying “the hereing” since 1975. Except for the automotive industry, nothing else has changed.The U.S. is the last country in the world to not be exclusive users of the metric system in everything. We have been using the metric system for decades in pharmaceuticals, photography, chemical industry, opt. See more here Images of metric bolts sizes inch inch here/images See more images of metric bolts sizes inch inch Metric Stud Bolt To Nut Size Chart - here https://here/stud- bolt -nut-chart (Nominal diameter is more of a label than a size . For example, a bolt and nut may be described as being ” diameter. But neither the external threads of the bolt nor the internal threads of the nut are exactly .500 in diameter. In fact, the bolt diameter is a little smaller and the nut diameter a little larger. Your shopping cart is empty. Subtotal: $0.00 Quick Add Cart / Checkout: Quick Add

Metric Conversion Tables. The following charts will help understanding the Threads and Diameters in metric fasteners and their conversion to US Standard Inches . Metric Screw Thread Chart Metric Tap Size Tap Drill ( Inches ) Clearance Drill ( Inches ) . M10 x 1.5 “K” (0.339) 13/32 (0.406) . Standard Thread Size Tap Drill Size ( Inches ) Clearance Drill Size ( Inches ) #0-08 #56 (0.046) 1/16 (0.062) Metric Bolt Conversion Metric bolt conversion data for industrial bolts/rods , machine screws and small diameter fasteners from Elgin Fastener Group includes metric to standard bolt conversions. The chart below shows metric bolt conversions and DIN numbers for fasteners.

**All measurements in millimeters** NOMINAL SIZE (D) BODY DIAMETER HEAD THICKNESS ACROSS THE FLATS ACROSS CORNERS D (MAX) D (MIN) H (MAX) H (MIN) F (MAX) F (MIN) C (MAX) C (MIN) m10 10.00 9.78 6.63 6.17 17.00 15.73 18.48 17.77 m12 12.00 11.73 7.76 4.24 19.00 17.73 20.78 20.03 m14 14.00 13.73 9.09 […] How do you differentiate between M8, M10, and M12 bolts? Update Cancel. Take a metric set of wrenches and for instance take the 8mm and place it on the threads not the head of the bolt and if its the same size its a m8. Or download the chart online. A 8m bolt uses a 13mm wrench to tighten it . CONVERSION (SAE to Metric Metric to SAE) To convert inches to millimeters, multiply inches x 25.4. To convert millimeters to inches multiply millimeters x 0.039370.