The rough flange surface of hexagon flange bolt of rough flange can make the connection more firm. When tightening the bolts, they can better fit together with the surface of the connected material, increasing the friction. Bolts are difficult to loosen due to vibration or other external forces.
Hexagon flange bolt of rough flange is pretty common in factories and farms. Let's say you're building heavy equipment like metal-cutting machines - when those big machines start working, their parts get shaken around and pulled in all directions. They're like heavy-duty clamps that keep important sections locked tight, stopping screws from rattling loose when the machine's vibrating nonstop. You'll also spot these bolts on farm gear. Take tractors plowing through muddy fields - they bounce around like crazy on uneven ground. Mechanics choose this product specifically because their rough surface grips better, preventing connections from coming apart even when the whole machine's shaking like a washing machine full of bricks. It's basically industrial-strength Velcro for metal parts.
The hexagon flange bolt of rough flange can also be used in the shipbuilding industry. During navigation, ships have to endure the impact of waves, the vibration of the hull, etc. In shipbuilding, they are often used to connect parts such as the deck and bulkheads of ships.
Got a rusty swing set in the backyard?
The hexagon flange bolt of rough flange can easily tighten the swinging chain on the swing. They can firmly grasp the weathered metal joints. Anyway, children are in danger when using the swings.