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The charts below show metric bolt conversions to standard bolt conversions and DIN numbers for fasteners. To assist in ordering, we offer metric bolt conversion data for industrial bolts/rods, machine screws, and small-diameter fasteners, including approximate equivalency and common DIN numbers.
Conversion data for UNC to metric fasteners for industrial bolts and machine screws. While metric screws and inch screws may appear similar, they possess different thread types and fundamental units.
16 lip 2021 · Use our bolt size chart to learn how to measure bolt size and the different dimensions of a bolt. Imperial and metric measurements included.
To convert 5/16 inch to mm, divide 5 by 16 to convert the fraction to a decimal. Then, multiply that by 25.4 since there are 25.4 millimeters in one inch. That's the formula that our calculator uses to find that 5/16 inch to millimeters is 7.9375 mm. Convert a measurement from SAE to metric or metric to standard SAE using the calculator below.
Below is a table common fastener sizes and lengths and their US (Inch) decimal and closest fraction equivalent. Note - Metric screw diameters usually start with "M" (M3, M4, M5...), for this chart you can just drop the 'M' from the front and add an extra at the back (M3 = 3mm, M4 = 4mm...).
Metric bolt conversion data for industrial bolts/rods, machine screws and small diameter fasteners includes metric to standard bolt conversions. The chart below shows metric bolt conversions and DIN numbers for fasteners.
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