Transcription of Minimum Thread Engagement (Bolt Failure) Chart - Standard
1 Minimum Thread Engagement ( bolt Failure) Chart - Standard Coarse Threads Nut Material: Low Carbon Steel Nut Material: Nodular Iron Nut Material: A356-T6. Yield Strength (ksi): 48 Yield Strength (ksi): Yield Strength (ksi): 24. Nominal Stress Thread Grade 2 Grade 5 Grade 8 Grade 2 Grade 5 Grade 8 Grade 2 Grade 5 Grade 8. Diameter Area Size (in) (in 2 ) (in) (in) (in) (in) (in) (in) (in) (in) (in). 1/4 - 20 5/16 - 18 3/8 - 16 7/16 - 14 1/2 - 13 5/8 - 11 3/4 - 10 7/8 - 9 1-8 Fine Threads Nut Material: Low Carbon Steel Nut Material: Nodular Iron Nut Material: A356-T6. Yield Strength (ksi): 48 Yield Strength (ksi): Yield Strength (ksi): 24. Nominal Stress Thread Grade 2 Grade 5 Grade 8 Grade 2 Grade 5 Grade 8 Grade 2 Grade 5 Grade 8.
2 Diameter Area Size (in) (in 2 ) (in) (in) (in) (in) (in) (in) (in) (in) (in). 1/4 - 28 5/16 - 24 3/8 - 24 7/16 - 20 1/2 - 20 5/8 - 18 3/4 - 16 7/8 - 16 1/8 - 12 GFC Engineering & Testing Center 1524 East 14 Mile Road Madison Heights, MI 48071 248-307-0567
