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The shank of a screw is threaded all the way to the head of the screw. The shank of a bolt is only threaded part way - the balance of the bolt is unthreaded. <br>
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<div id="AppleMailSignature" dir="ltr">Michael Marr<br>
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On May 21, 2019, at 01:04, Sujit Roy <<a href="mailto:triumphstag@gmail.com">triumphstag@gmail.com</a>> wrote:<br>
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<div dir="ltr">I can't figure out what the difference is between a bolt - hexagon head and a setscrew hexagon head as mentioned in the Standard Hardware Catalog.
<div>Here's my theory. A bolt - hexagon head has an integrated washer built into the head. and the part no. starts with HB where as a setscrew - hexagon head does not have the integral washer. (HU)</div>
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<div>My Stag parts book shows three fasteners holding on the water pump cover.</div>
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<div>1 is a bolt (HU) no washer needed nor shown, the other two are setscrews (HU) 2 washers needed and are shown.</div>
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<div>Can someone enlighten me?</div>
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<div>Regards, Sujit<br clear="all">
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<div>Sujit Roy<br>
Cupertino, California</div>
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<a href="https://triumphstagblog.wordpress.com/" target="_blank">https://triumphstagblog.wordpress.com/</a><br>
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