Free Web Hosting Provider - Web Hosting - E-commerce - High Speed Internet - Free Web Page

PPT Slide

The SAE has established a sequence of grades from 0 to 8

for steel bolts, on the basis of the metal from which the bolt

is made and the manner of manufacture. Available grades

run from 2 to 8, with 8 the strongest. Higher grade numbers

almost always mean increased strength (an exception is that

some grade 6 bolts are stronger than grade 7).

The heads of steel bolts are marked to identify their grade.