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Please refer Original standards for details.
8 sty 1993 · The standarized properties of metric bolts are specified in the international standard ISO 898-1:2009 'Mechanical properties of fasteners made of carbon steel and alloy steel - Part 1: Bolts, screws and studs with specified property classes - Coarse thread and fine pitch thread'.
27 lut 2014 · The property classes of nuts are designated by a number which indicates the maximum appropriate property class of bolt with which they should be fitted. Therefore nut property classes are the same as the bolt designation initial number.
BOLT SIZE PITCH STRESS AREA MM2 BOLT/STUD/SCREW ISO 898-1 Gr. 10.9 NUT ISO 898-2 Gr.10 PROOF STRESS N/MM2 PROOF LOAD KN TENSILE STRESS N/MM2 TOUR-QUE* N-m HARD-NESS HRC ... PROPERTIES OF GRADE 10.9 BOLT & NUT (ISO) * Torque value based on 75% of proof load and fi nish as recieved steel.
Non-preloaded Ordinary Bolts. Values in bold are less than the single shear capacity of the bolt. Values in italic are greater than the double shear capacity of the bolt. Bearing values assume standard clearance holes.
BS EN ISO 898-1 grade 10.9 is a carbon alloy steel used throughout the general engineering sector for mechanical jointing of components. Differing from general commercial bolting found in general hardware stores.
din 6914 grade 10.9 bolts meet ASTM A324 grade BD and SAE J429, metric grade 10.9 bolts in a wide range of standard, coarse and fine sizes. Due to space and time limitations, here is a chart showing you the tension and shear minimum capabilities of different grade fasteners relative to their size.
