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Help, what kind of bolt is this? I don’t know what standard is used for the kop couplings

2016-03-23View Original

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The coupling tensioning bolts used on our air compressor diaphragm couplings are manufactured by Kop Flex. What does SHCS stand for? What does nf mean? What does s.s. stand for? What is this standard? http://mail.163.com/js6/s?func=mbox:getMessageData&sid=YCPLMcMFElwjYAKueeFFCtYbMFWvvwdo&mid=373:xtbBdQymDlEAPDmX0wAAsB&part=3
Reply #22016-03-23
This post was last edited by Wall light on 2016-3-24 at 11:01. The 5/8-18 nf*3.00 shcs bolts are of the socket head cap screw type; their length is 3.00 inches, the outer diameter is 5/8 inch, and the pitch is 18 teeth per inch
Reply #32016-03-23
This post was last edited by Zhaowang on 2016-3-24 at 11:03. It’s a 3/4-16 nf*2.50 s.s.s.s. bolt; I’m not sure what type of bolt it is. Its outer diameter is 3/4, the pitch is 16 teeth per inch, and the length is 2.5 inches. No one replied, but I found it myself:P

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