MF FASTENER INDUSTRIES LLC
Emirates Modern Industrial Area, Umm Al Quwain, U.A.E. · P.O. Box 7071 · ISO 9001:2015 · Technical Library
TECHNICAL LIBRARY
Thread & dimension lookup
Pick a size and read everything the drawing needs: pitch, stress area, tap drill, across-flats, head and nut heights and washer sizes — for both the ISO and the DIN versions where they differ.
Head, nut and washer dimensions
Full coarse-thread table
All sizes M3–M64, ISO 261 coarse pitch. Stress area from the ISO 898-1 formula As = (π/4)·(d − 0.9382·P)²; tap drill = d − P.