McKinney HT4A3386 Heavy Weight Hinge | 4-1/2" x 4-1/2" US32D Stainless Steel

The McKinney HT4A3386 is a premium, industrial-strength heavy weight bearing hinge engineered for high-traffic commercial environments that demand the highest levels of safety and sanitation. Featuring a massive .180 gauge thickness, this 5-knuckle, full mortise hinge is the ultimate solution for door restoration in hospitals, psychiatric centers, and clean-room facilities. Crafted from high-grade US32D Satin Stainless Steel, it provides maximum corrosion resistance and structural integrity for heavy or high-frequency doors.

Integrated Safety: Hospital Tip (HT) Technology

The Hospital Tip design is a critical safety innovation tailored for healthcare and institutional settings. It features a one-piece non-removable pin with sloped, tapered barrel ends.

• Ligature Resistance: The tapered tips help prevent the attachment of cords or foreign objects, providing a vital solution for commercial door security in sensitive patient-care areas.
  
• Tamper-Proof Design: By engineering the pin with tapered ends, it becomes virtually impossible to remove, acting as an inherent security barrier against unauthorized door detachment.
  
• Hygienic Surface: The sloped ends reduce dust accumulation and facilitate easy wipe-down procedures, supporting strict infection control protocols.

Maximum Security with NRP (Non-Removable Pin)

In addition to the hospital tip, this hinge features an NRP (Non-Removable Pin) set screw driven into the barrel.

• Dual-Layer Security: Even if the door is in the open position, the set screw prevents the pin from being removed.
• Inaccessible When Closed: The security screw is hidden when the door is shut, making it an ideal solution for door security on outward-swinging exterior doors or high-value interior rooms.

Heavy-Duty Performance & Oil Impregnated Bearings

The TA Prefix signifies McKinney’s high-performance self-lubricating bearing system, essential for heavy-weight applications.

• Oil Impregnated Bearings: These one-piece, non-ferrous bearings ensure smooth, silent operation and offer superior resistance to clogging and corrosion.
• Heavy Weight .180 Gauge: Specifically built to support extra-heavy doors, lead-lined doors, or those subjected to extreme abuse, acting as a permanent solution for door edge reinforcement.
• Maintenance-Free Longevity: The self-lubricating design significantly reduces long-term maintenance costs and prevents premature hinge failure.
  

Technical Details & Specifications

• Brand: McKinney (ASSA ABLOY)
• Model: HT4A3386
• Dimensions: 4-1/2" x 4-1/2" (Heavy Weight .180 Thickness)
  
• Material: US32D (630) Satin Stainless Steel
• ANSI/BHMA A156.1 Compliant: Corresponds to industry-standard ANSI A5111.
  
• Fasteners Included: Furnished with All Wood Screws (1-1/4" x 12 FPHW) and All Machine Screws (1/2" x 12-24 FPHM). For heavy-duty metal frames, use of thru bolts is recommended for a secure mount.
  

Why Choose the McKinney HT4A3386?

The McKinney HT4A3386 is the definitive choice for architectural projects requiring a "no-fail" hardware solution. Whether you are performing a solution for door surface repair or outfitting a new surgical suite, its combination of heavy-weight stainless steel, self-lubricating bearings, and hospital-tip security ensures your openings remain safe, hygienic, and functional for decades.