Calculate bolt tensile area and design load from bolt diameter and design stress.
The bolt size and thread can be calculated for either National Coarse (UNC), National Fine (UNF), Whitworth (BSW) or ISO (ISO coarse, ISO fine or ISO xtra fine)). The bolt tensile area can be calculated for either ANSI threads based on threads per inch, or ISO threads based on thread pitch. The design stress can be calculated for either SAE, ISO or ASME bolts. Bolt load is calculated from the design stress and the tensile area.
Use the Result Table option to display a table of tensile area and design load versus either bolt size or bolt material.
Tool Input
- syutype : Stress Schedule
- mattype : Bolt Material Type
- SMYSu : User Defined Specified Minimum Yield Stress
- SMTSu : User Defined Specified Minimum Tensile Stress
- bolttype : Bolt Schedule
- diabtype : Bolt Size
- Du : User Defined Bolt Diameter
- Pu : User Defined Pitch Length
- TPIu : User Defined Threads Per Inch
- areatype : Bolt Tensile Area Type
- Axu : User Defined Bolt Tensile Area
- dfactype : Stress Design Factor Type
- Fdu : User Defined Stress Design Factor
- satype : Design Stress Type
- Sau : User Defined Bolt Design Stress
Tool Output
- Ax : Bolt Tensile Area
- D : Bolt Diameter
- Fd : Stress Design Factor
- Nd : Bolt Design Load
- P : Bolt Thread Pitch
- SMTS : Tensile Stress
- SMYS : Yield Stress
- Sd : Bolt Design Stress
- TPI : Bolt Threads Per Inch