4" x 4inch (101.6 x101.6 mm) Black Door Hinges, Stainless Steel 4 in Heavy Duty Ball Bearing NRP with Square Corner for Residential Commercial

4" x 4inch (101.6 x101.6 mm) Black Door Hinges, Stainless Steel 4 in Heavy Duty Ball Bearing NRP with Square Corner for Residential Commercial

[Maximum Security with NRP Design] Engineered with a Non-Removable Pin (NRP), these hinges provide an essential layer of security for outswing doors. The tamper-proof pin cannot be removed from the outside, making them the perfect choice for entryways, garages, and gates. [Whisper-Quiet Ball Bearing Operation] Equipped with 4 high-precision lubricated ball bearings, our hinges ensure a silky-smooth, silent swing. Eliminate frustrating door squeaks and metal-on-metal friction, even under the stress of heavy, high-traffic doors. [Industrial-Grade Durability] Tested for over 500,000 cycles and 90-minute fire-rated. These 3.0mm thick heavy-duty hinges are built for longevity. Whether it's the 304 stainless steel for coastal rust-resistance or the electroplated matte black for modern aesthetics, they are built to last. [Weather-Proof & Corrosion-Resistant] Our hinges undergo a rigorous 96-hour salt spray test, far exceeding industry standards. Designed to withstand humid bathrooms, coastal salt air, and harsh outdoor elements without rusting, chipping, or flaking. [Precision Fit & Easy Installation] Standard 4" x 4" square corner design fits most American residential and commercial door frames. Each pack includes reinforced M4.8x35mm matching screws for a flush, sturdy, and professional DIY or pro-level installation. Product: Satin Ball Bearing NRP Hinges 4" x 4"x 3 mm Square Corner Style Size: 4" x 4" (102 x 102 mm) Hinge Radius: Square Corner Ball Bearing: 4 Balls Bearing Finish: Matte Blackl Finished Material: Heavy duty 201 grade Stainless Steel hinge with Stainless Steel Non removable pin with grease Hanging: Use on Medium Weight Doors or Doors Requiring Medium Frequency Service Knuckles: 4 ∅12 Hole(s): 10 NRP-Pin: YES Loaded Capacity:35KGS Exterior Door Hinges Suitable Door Type: Flat Door Exterior Door Hinges Suitable Frame Type: Wooden Frame & Steel Frame Fixing Screw size : M4.8x35mm Door hinge Packing: 2 Pack Hinges X 20 PCS screw for mounting for added safety Or hold : 4 pack these hinges X 40 pcs screw door hingemate for per set view details of the vertical installation guide to well made and easy to install