HEX NUT DXTB227 7/8-11TxS33xH27/7/8-11TxS33xH31

Excellent anti-loosening performance is its most core feature. The intense vibrations of trucks can easily cause ordinary nuts to loosen. To address this, heavy-duty trucks commonly use flange nuts, whose integrated flange at the bottom effectively increases the contact area with the connected components, dispersing pressure. Meanwhile, the serrations on the flange surface can embed into the workpiece surface, generating significant anti-loosening friction. Another mainstream option is the nylon-insert lock nut, where the nylon ring at the top creates strong elastic clamping force when tightened onto the bolt, providing durable and reliable anti-loosening effects.
Convenient installation and identification are also crucial. The large contact surface of flange nuts facilitates wrench application, while different surface colors or markings (such as grade numbers on the nuts) aid in quick identification of their strength class, preventing misuse.

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