These screws are chemical and oil resistant, nonconductive, and lightweight. Length is measured from under the head. Polypropylene screws resist grease, acids, and alkalies better than nylon screws. Unlike nylon, they won't absorb moisture.

Coarse threads are the industry standard; choose these screws if you don’t know the pitch or threads per inch. Fine threads are closely spaced to prevent loosening from vibration. They are not compatible with coarse threads.

For technical drawings and 3-D models, click on a part number.