Flange Bolts & Flange Nuts Manufacturer, Wholesaler, Supplier & Exporter

Flange Bolts & Flange Nuts manufacturer, wholesaler, supplier and exporter from India. Global Fasteners Exports is a trading and export company: our flange bolts & flange nuts are made to DIN 6921, DIN 6923 standards by partner factories and supplied to importers, distributors and OEMs in 222+ countries from 10,000 sets, or a half or full container, at competitive prices below the average wholesale price.

Flange bolts and nuts have an integrated washer face that spreads clamping load and, in serrated versions, bites into the mating surface to resist loosening — eliminating a separate washer. Made by our partner factories, we supply and export these to DIN 6921 / DIN 6923.

Flange bolts and nuts exist to solve a simple problem more cheaply than a washer does: distributing clamping force over a wider bearing surface without adding a separate part to the bill of materials. That's a meaningful saving at automotive and agricultural-machinery production volumes, where every eliminated component also removes a step from the assembly line.

The serrations under a serrated flange bolt's head aren't decorative — they bite into the mating surface as the fastener is torqued down, adding genuine locking resistance. But that only works against a softer or coated surface; against hardened or highly finished surfaces, the serrations can't dig in and the locking benefit largely disappears, which is why non-serrated flange fasteners are still specified for finished or hardened joints.