Rubber Wiring Grommets for 1 1/4" Panel Hole (32mm) These rubber grommets are designed to fit a 1 1/4" panel hole (32mm) and lock into place on 1/16" thick panels (1.5mm). The 1" inside diameter (25mm) center wiring hole allows safe, clean routing for wires, tubing, and cables. With an outer diameter of 1 5/8" (41mm), they create a tight, vibration-resistant seal against panel edges — ideal for use in electrical boxes, automotive firewalls, machinery housings, and shop equipment. Pack Size: 2 Grommets Material: SBR Rubber (Styrene-Butadiene), non-split, one-piece molded Panel Hole Size: 1 1/4" (32mm) Inside Diameter: 1" (25mm) Outside Diameter: 1 5/8" (41mm) Groove Width: Fits 1/16" panels (1.5mm wall thickness) Operating Temperature: –40°F to 160°F (–40°C to 71°C) Durometer: 60A ±5 Elongation: 250–500% Tensile Strength: 1000–2500 psi Resists: Water, mild chemicals, alcohols, organic acids, and abrasives Standard Compliance: Comparable to ASTM D2000 AA / BA