4.5” x 4.5” · 2 Ball Bearings · Commercial Weight · Timely 5 Knuckles · Template · Square Corners

Non-removable Pin (N.R.P.)

Steel material with steel pin,

Reversible, with Phillips flat-head screws. Equivalent to: Hager’s BB1279, Stanley’s FBB179

TDC 4.5" x 4.5" Commercial Square Hinges – Built for Heavy-Duty Applications

Industrial-Grade Durability & Finish Options
TDC’s 4.5" x 4.5" square hinges are engineered for high-traffic commercial and institutional applications. Manufactured with precision, these hinges are available in Satin Nickel, Polished Brass, Oil-Rubbed Bronze, Antique Brass, Matte Black, Stainless Steel, and Custom Finishes, ensuring superior corrosion resistance, long-term durability, and a refined appearance for architectural and industrial projects.

Precision-Engineered for Strength & Performance
Constructed from high-strength steel with a reinforced 5-knuckle design and a precision-machined solid steel pin, these hinges offer exceptional load-bearing capacity and smooth, noise-free operation. Designed for heavy-duty applications, they ensure stability and longevity even under frequent use in commercial buildings, public facilities, and industrial environments.

Optimized for Professional Installations

• Size: 4.5" x 4.5" (114.3mm x 114.3mm)
• Corner Style: Square for precise alignment with commercial door preps
• Material: High-strength steel with advanced anti-corrosion coatings
• Pin Options: Removable Pin (RP) for general use or Non-Removable Pin (NRP) for enhanced security applications
• Application: Ideal for commercial, institutional, and heavy-duty residential doors

Customized for Bulk Orders & Large-Scale Projects
TDC specializes in high-volume production and custom manufacturing solutions tailored for B2B clients. Our bulk procurement options ensure cost-effective supply, consistent quality, and seamless integration into large-scale commercial construction and renovation projects.