Heinrichs screw plugs with 75 years of experience

Heinrichs product range

Screw plugs for recepticles to DIN 3852, with integrated NBR or FKM shaped sealing ring, up to 5800 psi pressure and 390 F.

Air bleed valves for electric geared motors. Opening pressure 2.18 to 3.63 psi. Unique anti-moisture labyrinth design.

Screw plugs for cavities to ISO 6149-2, with fixed NBR or FKM O-ring for pressures up to 9100 psi and temperatures up to 390 F.

Make use of our competence to design special solutions.

Screw plug with UNF thread to SAEJ514 (ISO 11926-4), with fixed NBR or FKM O-ring, up to 9100 psi pressure and 390 F.

DIN 906, 908, 910, 7604, readily available in almost any dimensions. Also nanopassivated (hex-chrome-free coated).

Screw plug with integrated NBR or FKM O-ring, specifcally for Pneumatics. Dimensions to ISO 16030.

Screw plug with integrated NBR or FKM O-ring, specifically developed for gear manufacturing.