There are many grades available, including 10.9, 8.8, DIN 933, and 12.9 grades. Many other standards exist, including IS1364, IS1363, DIN EN ISO 4014, and others. These standards specify fastener sizes ranging from 20mm to 100mm. The various varieties, such as the High Nut Bolt, are used for various purposes. Threads bind the nut bolts together.

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