4" x 4" Adjustable Spring Hinge, Square Corners – Fire-Rated – Model SP4401
Model SP4401 is a 4" x 4" adjustable tension spring hinge with square corners, engineered for reliable self-closing of doors in commercial and institutional applications. UL listed and fire-rated, this steel hinge delivers durability, smooth operation, and easy tension adjustment, complete with all mounting hardware.
Key Features:
Size: 4" x 4" (101.6 x 101.6mm)
Corners: Square
Gauge: Commercial weight (0.133")
Barrel Diameter: 0.775"
Material: Steel leaf & barrel
UL Listed: Fire-rated (File R21804)
Included: Phillips screws (wood & machine) + hex wrench
Template: Standard for Timely frames
Equivalent to: Hager 1250
Available Finishes:
Polished Brass (US3), Satin Brass (US4), Antique Brass (US5), Zinc Dichromate (US2D), Antique Bronze (US10), Oil-Rubbed Bronze (US10B), Satin Nickel (US15), Polished Nickel (US14), Antique Nickel (US15A), Polished Chrome (US26), Satin Chrome (US26D), Prime Coat (USP), Luma Black (US1D), Matte Black (US19), Satin Stainless Steel (US32D)
Recommended for wood or hollow metal doors that require square corner templating, adjustable self-closing action, and fire-rated performance.