A490 Bolts?
A490 Bolts?
(OP)
Hi there,
Quick question. Why is a washer required under the nut and head for an A490 bolt? Is it because of the increased material hardness?
Quick question. Why is a washer required under the nut and head for an A490 bolt? Is it because of the increased material hardness?






RE: A490 Bolts?
Link: http://www.boltcouncil.org/files/2009RCSCSpecifica...
RE: A490 Bolts?