SECO McHenry Screw (Brass)

The SECO McHenry Screw (Brass) is a precision replacement fastener designed for use with SECO surveying instruments, accessories, and mounting hardware. Crafted from high-quality brass, this screw offers reliable strength, corrosion resistance, and smooth engagement — making it an ideal solution for securing prism mounts, clamps, adapters, and other field components.

Brass hardware resists rust and seizing better than standard steel, especially in outdoor environments where moisture and soil exposure are common. Whether you’re replacing a worn screw or stocking up on spares for your crew, this McHenry screw delivers dependable performance and long life.