Founded in 1933, Curtis Industries has been producing superior quality products for over eight decades. Curtis Industries – a specialized electrical component manufacturer of custom and standard terminal block and EMI/RFI filter devices and subsystems. Quality is the founding principal of Curtis Industries’ manufacturing philosophy.
The NN-21-BR is a nickel-plated brass locking nut with a 3/4” NPT thread, designed as an accessory for strain relief fittings.