Download the PEI (Polyethylenimine) - Ultem
PEI Ultem Pan Head Metric Screws manufactured to ISO 7045 standards are high-performance fastening components designed for applications requiring exceptional mechanical strength, thermal stability, and electrical insulation. Manufactured from Polyetherimide (PEI Ultem), these screws combine high strength and stiffness with excellent dimensional stability across a broad temperature range, making them ideal for demanding engineering applications.
The pan head design features a low-profile, rounded head with a flat bearing surface underneath, providing improved load distribution across the mating surface and reducing the risk of material damage. Unlike countersunk screws, which are designed to sit flush within a tapered recess, pan head screws remain above the surface after installation and do not require countersinking, making them ideal for applications where preserving material thickness or simplifying assembly is important. The cross-recessed Phillips drive enables fast and convenient installation using standard tools while helping to maintain consistent torque application. Compliance with ISO 7045 ensures dimensional consistency and reliable compatibility with corresponding metric threaded components.
PEI Ultem exhibits outstanding heat resistance, low creep under sustained loads, and excellent retention of mechanical properties at elevated temperatures. The material also offers good resistance to hydrolysis, many industrial chemicals, and repeated sterilization processes, making these screws suitable for aerospace, electronics, medical devices, semiconductor equipment, and industrial machinery.
Key Features
Available in a range of metric thread sizes and lengths.
Material: PEI (Polyethylenimine) - Ultem
Max Temperature: 170°C/340°F
Flame Resistance: UL94 V-0
Return components within 90 days for a full refund. Please see our returns terms and conditions for further information.
Properties and applications
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