FTG-05
Elite Member
- Joined
- Jan 7, 2011
- Messages
- 2,588
- Location
- TN
- Tractor
- Kubota L4330 GST w/FEL, Kubota RTV-XG850, Kubota ZD326S
You make it sound like that chart is easy to find. It isn't.SAE or inch bolts have hash marks to indicate grade; metric bolts have arabic numerals to indicate class. A web search will turn up charts of the various markings and the equivalence of grade and class. As I understand it, the alpha-numeric characters on bolt heads are a code so the manufacturers, distributors, vendors, and others who are privy to the codes (like the check-out clerk at a box store) can identify the bolts without calipers and thread gauges.
Fortunately, Post #7 has proven this to be true.