Profile: Queen Screw & Mfg., Inc. is an ISO 9002 certified company. We specialize in the precision machining of plastic components for the medical, instrumentation, microwave, electronics, and chemical equipment industries. Our components and assemblies are fabricated from a wide range of polymers such as PEEK, KEL-F, teflon, torlon 5030, PPS, techtron, tefzel, and acrylics. We machine engineering-grade plastic parts in sizes from .005" up to 2" O.D., precision machined to +/-.0002" tolerances. Secondary operations include engraving, milling, cross-drilling, slotting, and pin insertion.