- Straight thread fittings have unlimited reusability, an elastomeric seal and no thread sealant is needed for installation.
. - Steel fittings come standard with ToughShield Plus plating which substantially exceeds the SAE corrosion hour requirements for red rust, lasting up to 3,000 hours without red rust as found by an independent test facility tested to ASTM B117/ISO 9227. Parker's Pipe Fitting and Port Adapter product line offers a wide range of thread types including NPT, NPTF, NPSM, BSPT, BSPP, SAE O-ring Boss ORB, ISO 6149 and Metric. - Available in steel, stainless steel and brass in sizes 1/8'' through 2'' with working pressures up to 7500 psi.