Free users can calculate, review output, and save project history.
FLANGE ASSEMBLY · ENGINEERING DRAWING
ASSEMBLY VIEWSTANDARDS EXPLORER · PIPING DATABASE
NO SCREENSHOT PROTECTIONView the database behind the bolt calculator with visual reference cards. This tool is designed as a companion explorer for engineers who want to understand the source dimensions.
CALCULATION RESULTS · ASME APPENDIX C
FREE TIERRecommended Stud/Bolt Length
Create an account to calculate
Browse freely, then sign in when you want to run the tool.
L = stack terms + gasket + washer stack + nut stack + thread projection + facing terms + extra allowance
MY CALCULATIONS
ACCOUNT HISTORYPRO WORKSPACE
BOLT LENGTH CALCULATOR · PROUse bulk import and premium exports for this tool when the logged-in account has Pro access.