GRAINGER APPROVED . O15858

Oil Hard Flat Stock, Steel Material, Width 5 In., Thickness 5/8 In., Finish RMS 45 Max, Length 18 In., Length Tolerance +.125 In./.250 In., Hardness Scale 177 to 212 BHN, Grade O1, Standards UNS T31501, SAE J-437, ASTM A-681-07, FEDERAL QQT-570 REV C Features Finish: RMS 45 Max Item: Oil Hard Flat Stock Length: 18" Material: steel Width: 5" Grade: O1 Thickness: 5/8" Standards: UNS T31501, SAE J-437, ASTM A-681-07, FEDERAL QQT-570 REV C Length Tolerance: +.125"