Engineering Tools
Reference data for specifying and sourcing fasteners correctly — the numbers a procurement or design engineer actually needs.
Fastener set weight calculator
Engineering estimate based on standard dimensions (steel density 7.85 g/cm³ unless changed) — actual weight varies by manufacturer tolerance.
ADD TO SET (OPTIONAL)
Validated against published DIN 933 industry weight charts — within 2–5% of manufacturer-published figures (residual variance from chamfer/corner rounding not modelled here).
IS 1364 (hex bolt), IS 2016 (washer) and IS 6623 (hex nut) are dimensionally equivalent to their DIN/ISO counterparts above — India follows the same ISO metric series, so the same figures apply. See the Standard Cross-Reference page.