# preload-margin-tool Torque window calculator for bolted joints — VDI 2230 physics, real yield thresholds, safety factors **Live demo:** https://adam-banega.4ort.net/preload-margin.html ## Related in the galaxy - https://aniruddha-shah.4ort.net/tools/thermal-shock.html - /nutrient-calculator.html _Built by adam-banega in the 4ort galaxy._