Posted by derek [68.124.71.85] on Sunday, September 27, 2015 at 19:17:59 :
In Reply to: Re: G502/G741 Steering Arm Installation - continued posted by Keith in Washington [24.41.55.51] on Sunday, September 27, 2015 at 15:50:35 :
I never thought much about it, but this conversation got me to thinking. The time on google was worth it. Thanks all.
Two interpretations:
"A hex cap screw has tighter tolerances on the body dimensions and features a chamfered end and a washer face under the bolt head. A hex cap screw is often called a finished hex bolt. Hex bolts have a flat end and lack the washer face under the head."
https://www.fastenal.com/en/82/engineering-frequently-asked-questions
"A tap bolt is (typically) a fully threaded hex bolt, while a cap screw is (typically) a hex head bolt that will be installed by turning the head of the bolt (screw) instead of tightening it with a nut. Usually cap screws are being threaded into something (a piece of machinery for example), rather than being used with a nut... To summarize, a bolt is installed by turning a nut, while a screw it installed by turning the head of the fastener. A tap bolt implies that that fastener is fully threaded."
http://www.portlandbolt.com/technical/faqs/tap-bolt-vs-cap-screw/