Self-locking nut BÖLLHOFF

Special fastening components SEAL LOCK® sealing nuts and HELICOIL® lock nuts

Special fastening components are manufactured on fully automatic production and assembly systems:
SEAL LOCK® sealing nuts, the cost-effective solution for reliable sealing of nut and bolt connections in threads and under head presentation against gaseous and liquid media under high pressure. (hydraulic systems, fuel systems and pneumatic systems)
The HELICOIL® lock nut with integrated HELICOIL® SCREWLOCK® is the solution for heavy-duty threaded joints with resistance to torque loss.
HELICOIL® nuts satisfy the high requirements with regard to corrosion, temperature loads, low thread friction and the reusability of threaded parts.

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