Metric nut grades, identification markings and strength chart to show proof strength and Vickers and Brinell hardness values of metric nuts made of carbon steel and alloy steel. Identification …

A head with no markings is Grade 2, one with 3 lines spaced 120 degrees is Grade 5, and 6 lines spaced at 60 degree intervals is Grade 8. Nuts are marked in several different ways—see …

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The normative document specifies the rules for the selection of nuts to bolts in terms of strength level. For example, with a class 5 nut, it is recommended to use a bolt section less than or …

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Mechanical properties of nuts with ISO metric threads (coarse); Designation system and stress under proof load for nuts; Test loads for nuts

Class 5：这个类别代表中等强度的紧固件。 它们适用于一般用途，需要比Class 2更高的强度和负荷能力。 Class 8：这是最高强度的类别，代表高强度紧固件。 它们具有很高的强度和负荷能 …

2024年9月18日 · Learn the essentials of bolt and nut grades, including SAE, ISO, and ASTM standards. Discover the differences between US and metric grades, their applications, and …

SAE J995 Gr. 5 nuts are middle strength nuts, which equals to ISO/DIN Class 8 nuts. Generally made of middle carbon steel, for example C1020, C1035 or C1045 steels. Its used in some …

Nuts have internal machine threads, for use with machine thread bolts and screws. A standard six sided nut. A tempered medium carbon steel. Zinc plated for moderate corrosion resistance. …