Page 1 of 4 1234 LastLast
Results 1 to 10 of 33
  1. #1
    Gold Member picker77's Avatar
    Join Date
    Feb 2006
    Posts
    385
    Location
    Central Oklahoma
    Tractor
    JD 3032E, dual remotes, TnT, tooth bar, grapple

    Default Grade 5 vs Grade 8 bolts... the hot skinny!

    The more I mess with implements/attachments and tractors the more times I find I need to make choices on the right fasteners to use. So I wanted to pass along a link to a brief but very informative page on the subject. I learned a lot from it, maybe some others will too. BTW, the subject may not be rocket science, but the author actually is a rocket scientist. LOL!

    ROCKCRAWLER.com - Grade 5 vs. Grade 8 Fasteners
    2010 John Deere 3032E

  2. #2
    Super Star Member k0ua's Avatar
    Join Date
    Jun 2009
    Posts
    15,633
    Location
    Branson, Mo.
    Tractor
    Kioti DK35se Hydrostat

    Default Re: Grade 5 vs Grade 8 bolts... the hot skinny!

    Very informative, thank you!
    James K0UA
    James KUA

    Kioti DK35se hydrostat with 2 QA buckets, 48 inch. King Kutter Rotary Cutter. 750 lbs ballast box. Loaded tires, Construction Attachments SSQA Lightweight Pallet forks. EA 50 inch single lid "wicked" Grapple. Satisfied Everlast PA160 welder owner How to add a link to a post . Best way to search TBN


  3. #3
    Elite Member Mace Canute's Avatar
    Join Date
    Nov 2006
    Posts
    4,628
    Location
    Saskatoon, Saskatchewan

    Default Re: Grade 5 vs Grade 8 bolts... the hot skinny!

    Nice article. I like his last sentence..."When in doubt, make it stout!" Hard to go wrong with that advice!

  4. #4
    Silver Member
    Join Date
    Jan 2009
    Posts
    140
    Location
    South Central, PA
    Tractor
    Kioti DK 45SE, 993 Pasquali

    Default Re: Grade 5 vs Grade 8 bolts... the hot skinny!

    Interesting article, helps to clear up some of the old sayings about the various grades of bolts.

  5. #5
    Veteran Member
    Join Date
    Aug 2004
    Posts
    1,719
    Location
    Caldwell Co. NC
    Tractor
    2006 Kama554; 92 Belarus 250AS

    Default Re: Grade 5 vs Grade 8 bolts... the hot skinny!

    Good article. Here is my favorite bolt reference:
    http://www.imperialsupplies.com/pdf/...rqueCharts.pdf

    If you want stronger than grade 8, alloy steel socket head cap screws are the strongest relatively inexpensive fasteners.
    Smith Fastener Company - Socket Head Cap Screw Specifications
    2006 Kama 554, 92 Belarus 250AS, Bombardier Outlander Max 400.

  6. #6
    Gold Member picker77's Avatar
    Join Date
    Feb 2006
    Posts
    385
    Location
    Central Oklahoma
    Tractor
    JD 3032E, dual remotes, TnT, tooth bar, grapple

    Default Re: Grade 5 vs Grade 8 bolts... the hot skinny!

    Actually, the difference in strength isn't as drastic as I expected it would be. However, I like the bonus of the nice finish and gold-anodized color of Grade 8 hardware. Could be my imagination, but they also seem to hold up without corrosion much longer than the white-finished Grade 5 stuff.

    I used to go to Lowe's or Ace Hardware for nuts and bolts and such, but then Lowe's started packaging fasteners in cute little individual onesies-twosies plastic packs, and ACE even prices them per each. In either case the total price can be a shock if you need a dozen or more. However, I found out a while back that Tractor Supply sells their fasteners by the pound, and simply charge a different price per pound for each grade. Since I use Grade 8 for almost everything, about every time I'm in there for something I stop by the fastener aisle and load up with another two or three pounds in common lengths and sizes. By so doing I've built up a decent inventory of Grade 8 fasteners in my shop without going broke doing it, and they have come in very handy.
    2010 John Deere 3032E

  7. #7
    Platinum Member techwrtr2's Avatar
    Join Date
    Nov 2007
    Posts
    778
    Location
    Alabama PA
    Tractor
    Which one?

    Default Re: Grade 5 vs Grade 8 bolts... the hot skinny!

    Finding anybody who sells fasteners by the pound rather than each was a shock to me. Every hardware store I've ever frequented sells everything besides certain prepackaged sizes individually.
    I like to play in the dirt....
    Satoh Beaver w/Blackhawk loader & hoe.
    JD855 w/stuff.

  8. #8
    Platinum Member
    Join Date
    Apr 2010
    Posts
    975

    Default Re: Grade 5 vs Grade 8 bolts... the hot skinny!

    Good information.

    Don't forget that there are counterfeit bolts out there too. Usually grade 2 or ungraded made with grade 8 markings. Great way to make 500% profit, as long as you don't mind stuff breaking causing death and mayhem.

    You won't find counterfeit USA made bolts...

  9. #9
    Veteran Member
    Join Date
    May 2009
    Posts
    1,616

    Default Re: Grade 5 vs Grade 8 bolts... the hot skinny!

    Informative but not complete. You are at a big box store and choose grade 8 bolts, what nuts and washers do you get?
    The nuts and washers should also be grade 8. Unless marked you will be picking up grade 2 or 5 hardware.
    What if you are replacing a lower grade bolt with a higher grade, no nut to screw the bolt into, the frame is tapped?
    A] You drill out the tap and use the same grade nuts.
    B] You use a longer bolt to thread deeper into the blind pocket.

    Washers are stamped or CUT from sheet metal. The stamping causes a slight CROWN in the washer, take advantage of the crown by placing the flat side away from the bolt head or nut.

    I have found that the chine's nuts and washers much too soft for the bolts.

  10. #10
    Super Star Member k0ua's Avatar
    Join Date
    Jun 2009
    Posts
    15,633
    Location
    Branson, Mo.
    Tractor
    Kioti DK35se Hydrostat

    Default Re: Grade 5 vs Grade 8 bolts... the hot skinny!

    Picker, Race Brothers is another great place to buy grade 5 and grade 8 nuts and bolts by the pound, and also bulk chain, their prices on chain are cheaper than TSC. in all grades. I dont know if you have a Race Brothers store out there in OK land, but we have several in the area here.
    James K0UA
    James KUA

    Kioti DK35se hydrostat with 2 QA buckets, 48 inch. King Kutter Rotary Cutter. 750 lbs ballast box. Loaded tires, Construction Attachments SSQA Lightweight Pallet forks. EA 50 inch single lid "wicked" Grapple. Satisfied Everlast PA160 welder owner How to add a link to a post . Best way to search TBN


Page 1 of 4 1234 LastLast

Similar Threads

  1. Duragrader vs Landpride vs Grade Master
    By NonTypicalCPA in forum Attachments
    Replies: 24
    Last Post: 01-23-2012, 05:24 PM
  2. 5 years ago today
    By Tdog in forum Related Topics
    Replies: 32
    Last Post: 08-31-2010, 11:08 AM
  3. I keep breaking bolts
    By WTA in forum Build-It Yourself
    Replies: 27
    Last Post: 02-28-2010, 10:19 PM
  4. JD 4000 series wheel bolts
    By Anonymous Poster in forum John Deere Owning/Operating
    Replies: 5
    Last Post: 04-13-2002, 11:56 AM
  5. Chain of command
    By Anonymous Poster in forum John Deere Owning/Operating
    Replies: 9
    Last Post: 04-13-2002, 07:17 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
© 2014 TractorByNet.com. TractorByNet is a registered trademark of IMC Digital Universe, Inc. Other trademarks on this page are the property of their respective owners.