STI STI-9609 Steel Web Stopper High Profile Flush Mount

Overview

The STI STI-9609 is a high-profile flush mount steel web stopper engineered for door security applications in high-abuse environments. Built from 9-gauge steel with a patented web-like octagonal design, this stopper protects against vandalism and accidental impact while maintaining strike functionality in commercial, institutional, and controlled-access installations. The design is rated for areas where smoke detector tampering and severe abuse are concerns — typical in correctional, psychiatric, detention, and high-security facility applications.

Compatibility

Designed as a universal-fit mechanical stopper for standard flush mount strike installations. Compatible with comprehensive door access control systems across commercial and institutional environments. Suitable for integration into existing strike assemblies without requiring system-level modifications. Works in controlled environments where mechanical supplementation of electronic strikes is required.

Installation Notes

Quick installation and simple removal for routine maintenance. Rated for controlled environments from −40°F to 212°F (−40°C to 100°C) — not intended for outdoor use. The patented web structure and impact-resistant construction provide durability without mechanical complexity. Stainless steel (304 medical-grade) variant available for hygienic environments; standard steel models feature a corrosion-resistant linear low-density polyethylene (LLDPE) coating. Three-year guarantee against breakage in normal use covers manufacturing defects in construction and material.