SAE grade 5.2 85/590 120/830 C26–36 1⁄4–1 Low carbon martensitic steel; quench and tempered ASTM A449 - Type C25–34 2 Low carbon martensitic steel; quench and tempered - Type 1 or 85/590 92/630 120/830 C24–35 1⁄2–1 Medium carbon (inc.) steel; quench and 1–1-1⁄2 74/510 82/570 105/720 C19–31 tempered ASTM A325 - Type 85/590 92/630 120/830 C24–35 1⁄2–1 3 1–1-1⁄2 74/510 82/570 105/720 C19–31 Atmospheric corrosion resistant steel; quench and tempered - Grade BC 105/720 109/750 125/860 C26–36 1⁄4–2-1⁄2 Medium carbon (inc.) alloy steel; quench 2-1⁄2–4 95/660 99/680 115/790 C22–33 and tempered SAE grade 7 105/720 115/790 133/920 1⁄4–1-1⁄2 Medium carbon alloy steel; quench and tempered SAE grade 8 120/830 130/900 150/1,000 C32–38 1⁄4–1-1⁄2 Medium carbon alloy steel; quench and tempered ASTM A354 - 120/830 130/900 150/1,000 C33–39 1⁄4–2-1⁄2 Grade BD (inc.) 2-1⁄2–4 105/720 115/790 140/970 C31–39
SAE grade 5.2 Low carbon martensitic steel; quench and tempered 1⁄4–1 85/590 120/830 C26–36 ASTM A449 - Type 2 Low carbon martensitic steel; quench and tempered C25–34 or - Type 1 Medium carbon steel; quench and tempered 1⁄2–1 (inc.) 85/590 92/630 120/830 C24–35 1–1-1⁄2 74/510 82/570 105/720 C19–31 ASTM A325 - Type 3 Atmospheric corrosion resistant steel; quench and tempered 1⁄2–1 85/590 92/630 120/830 C24–35 1–1-1⁄2 74/510 82/570 105/720 C19–31 - Grade BC Medium carbon alloy steel; quench and tempered 1⁄4–2-1⁄2 (inc.) 105/720 109/750 125/860 C26–36 2-1⁄2–4 95/660 99/680 115/790 C22–33 SAE grade 7 Medium carbon alloy steel; quench and tempered 1⁄4–1-1⁄2 105/720 115/790 133/920 SAE grade 8 Medium carbon alloy steel; quench and tempered 1⁄4–1-1⁄2 120/830 130/900 150/1,000 C32–38 ASTM A354 - Grade BD 1⁄4–2-1⁄2 (inc.) 120/830 130/900 150/1,000 C33–39 2-1⁄2–4 105/720 115/790 140/970 C31–39
8b%20WIKIPEDIA_Screws.docx