Stainless Bolts
Elder User
Joined: Feb 2002
Posts: 504
Likes: 2
From: Saddle Brook United State
Stainless Bolts
Hi,I investigated the stainless route for my 4.9. Stainless bolts are only equal to a grade 2.5 ( 1= soft 12= hard) on the bolt scale. Grade 5 is what is used on most vehicles for general purposes. Grade 7 and above are used in high stress applications, clutch bolts , fan bolts etc. I found a company that sells chrome plated grade 5 and above bolts, nuts and washers and others. Cost about $70 , to do the engine.
stractor
Junior User
Joined: Jan 2003
Posts: 50
Likes: 0
Stainless Bolts
Just like regular carbon steel bolts, stainless also has several different grades. You may be able to use a 400 series S/S and still have the same strength as a grade 5(Your neighbor hood hardware store usually has 18-8 S/S, which is the same as a 300 series. Higher the number the better). 400 series S/S will be very hard to come by at the hardware store and very expensive, put if you are interested you can contact your local Fastenal (www.fastenal.com), Grainger, McMaster Car or Lawson dealers for tech specs on 400 S/S.
