Bolt Manufactures with a Minimum of Grade 2 Bolts
This table is to help identify bolts that have no grade marking, but have a manufactuer marking. If the bolts on this list than you can assume that it meets SAE J429 grade 2 specifications or the ASTM 307A specifications.
|Marking Picture||Manufactuer Name||Bolt Head Marking||Webpage the shows the minimum grade|
|Lakshmi Precision Screws Ltd.||L P S||http://www.lpsindia.com/grades.aspx|
|Nucor (Fastner Division)||n||http://www.nucor-fastener.com/Files/PDFs/TechDataSheets/TDS_005_Grade_2_&_A307_Bolting.pdf|