FAQ's

Frequently Asked Fastener Questions


Q: Is a bolt stronger because it is made of stainless steel?
A: No, stainless steel bolts are rated for corrosion resistance. Bolt strength is rated in PSI (pounds per square inch). A stainless steel bolt has the same PSI rating as a grade 5 bolt (125,000 PSI). A grade 8 bolt has a stronger rating with a PSI of 150,000.

Q: Is a hex cap screw (bolt) partially threaded or fully threaded?
A: The ISO standard for hex cap screw thread length is 2 times the diameter plus 1/2 inch. Fully threaded bolts are called "tap bolts". Tap bolts are not found on our website, you need to call us direct at 800-872-5557.

Q: What does ISO stand for?
A: ISO stands for International Organization for Standardization. A link to their website can be found here: ISO

Q: What is the difference between a hex head cap screw and a socket screw?
A: A socket screw is driven down with an "Allen Key". A hex head cap screw is driven down with a socket.

Q: Do you have a catalog?
A: No. We are concentrating on putting our products on the web through NutsandBolts.com as an alternative to a catalog.

For questions or comments about the NutsandBolts.com website please contact:

Granby, Mass. 01033
webmaster@nutsandbolts.com


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