bolt nut 20mm diameter bolt

A short guide to metric nuts and bolts answers to the most frequently asked questions standard and fine pitch th reads how to identify nut and bolt strength grades how nut and bolt strength grades compare maximum tightening torques why specifi ed torque is sometimes lower than the maximum spanner sizes versus bolt / nut thread size
Alibaba offers 474 20mm diameter bolt products. about 20% of these are bolts, 9% are anchors. a wide variety of 20mm diameter bolt options are available to you, such as anchor bolt, wedge anchor, and concrete anchor.
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.

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