4" x 4" Adjustable Spring Hinge, 1/4" Radius Corners – Fire-Rated – Model SP4400
The SP4400 is a 4" x 4" commercial weight adjustable spring hinge with 1/4" radius corners, designed for reliable self-closing of doors in commercial or institutional settings. UL listed and fire-rated, this hinge features a steel leaf and barrel, adjustable spring tension, and comes complete with screws and a hex wrench.
Key Features:
Size: 4" x 4" (101.6 x 101.6mm)
Corners: 1/4" radius
Gauge: Commercial weight (0.133")
Barrel diameter: 0.775"
Material: Steel leaf & steel barrel
Fire-Rated: UL Listed (File R21804)
Included: Phillips screws for wood & machine, plus hex wrench
Equivalent to: Hager 1251
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)
Perfect for wood or hollow metal doors that require adjustable self-closing action and fire-rated hardware.
4" x 4" Spring Hinge, 1/4" Radius – Model SP4400
Inches: 4" x 4"
Millimeter: 101.6 x 101.6































