Schlage Residential S3P1021 4"...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$31.00
$16.70
Schlage Residential Schlage Residential Pack of Three 4" x 4" 5/8" Radius Corner Plain Bearing Mortise Hinges SCR-S3P1021

Schlage Residential S3P1021 4" x 4" Plain Bearing Mortise Hinges with 5 and 8" Radius Corners - Pack of 3

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Model: S3P1021FRP622
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Schlage Residential S3P1021 4" x 4" Plain Bearing Mortise Hinges with 5/8" Radius Corners - Pack of 3

Professional Residential Door Hardware Solution

The Schlage Residential S3P1021 plain bearing mortise hinges deliver reliable performance for standard residential door applications. These 4" x 4" hinges feature durable steel construction with 5/8" radius corners and lubricated knuckles that prevent binding. Each pack includes three hinges with wood screws for complete installation, meeting residential strength requirements with removable pin design for easy maintenance.

Professional Features & Benefits

  • Standard Residential Dimensions: 4" height x 4" width sizing fits standard residential door applications with proper mortise preparation.
  • Durable Steel Construction: 0.085" gauge steel material provides strength and durability for residential door installations.
  • Plain Bearing Design: Machined knuckles with smooth surfaces allow movement without bearings, suitable for standard residential door traffic.
  • 5/8" Radius Corners: Traditional corner styling coordinates with standard residential door preparation and classic design themes.
  • Complete Installation Package: Pack of three hinges includes wood screws for doors up to 7.5 feet in height per manufacturer recommendations.
  • Removable Pin Design: Allows for easy door removal and maintenance when needed for residential applications.
  • Lubricated Knuckles: Factory lubrication prevents binding and ensures smooth door operation throughout the hinge lifecycle.
  • Arc Hole Pattern: Standard screw hole configuration with 8 mounting holes total provides secure attachment to door and frame.

Standard Features

  • Sold as Three Hinges (Cannot be sold individually)
  • Plain Bearing Hinge
  • Residential Strength
  • Removable Pin: Yes
  • Wood Screws Included
  • 5/8" Radius Corner
  • Traditional / Classic Theme
  • Arc Hole Pattern

Plain Bearing Hinge: Plain bearing hinges feature knuckles that are machined to a smooth surface, allowing them to move against one another without bearings. Plain bearing hinges are not recommended for heavy use on high traffic entrance ways, but meet the need of a standard residential door.

Material - Steel: Steel is cheap strong and durable making it a favorite for hinges of all types. Though it is more prone to rusting than solid brass or stainless steel.

Mounting: The standard corners for mortised door hinges are 1/4" radius, 5/8" radius and square corner. It is recommended that three hinges be used on doors up to and including 7.5 feet with one additional hinge for each additional 2.5 feet. Make sure you check your current hinges before making a purchase.

Specifications:

  • 4 Inch Height
  • 4 Inch Width
  • Made from Steel
  • Mount: Mortise
  • Gauge: 0.085" (Thickness of Hinge Steel)
  • 5 Knuckles
  • 8 Screw holes

For over 90 years, Schlage has been making homes more stylish and secure with the best door locks and door hardware. Today the Schlage family of products also includes the very best in electronic locks, keyless door locks, and home security. Let Schlage's hardware and security solutions protect and enhance the things that matter most to you.

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness, stile width, and handing as applicable to this product.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces.
  3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
  4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications.
  5. Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
  6. Test device operation to verify proper function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Residential Interior Doors
  • Single-Family Home Construction
  • Multi-Family Residential Properties
  • Residential Renovation Projects
  • Custom Home Building
  • Residential Door Replacement
  • Property Management Maintenance

Why Choose Schlage Residential Quality?

Schlage Residential hinges deliver professional-grade reliability with durable steel construction and lubricated knuckles rated for residential door applications. With over 90 years of experience in door hardware manufacturing, Schlage provides coordinating hardware solutions that enhance both security and style. Engineered for demanding residential applications where dependable performance and traditional styling are essential.

Backed by Schlage's Lifetime Limited Mechanical and Finish Warranty.

Manufacturer Resources

Product Specs

Product Group:
Door Hinges and Pivots
Series:
1000
Fasteners:
Wood and Machine Screws
Corner Style:
5/8" Radius Corners
Subcategory:
Full Mortise Hinges
Product Subgroup:
Full Mortise Hinges
Product Type:
Hinges
Duty Level:
Medium Duty
Bearing Type:
Plain Bearing
Commercial/Residential:
Residential
Package:
Yes
Package Qnty:
3
Product Model:
S3P1021
Product Function:
Plain Bearing
Product Size:
4" x 4"
Product Category:
Door Hinges and Pivots
Product Substrate:
Steel
Department:
Door Hardware

Schlage Residential S3P1021FRP622 – Frequently Asked Questions

1) Can I use Schlage S3P1021 hinges on an exterior door?
They are steel with a plain bearing and rated residential, medium duty, which suits interior doors and light residential use. Steel is strong and cheap but more prone to rusting than solid brass or stainless, so on a weather-exposed exterior opening it is the wrong pick. Delaney's RH45xx 4 x 4 residential hinge with a 5/8 inch radius is sold specifically as an exterior residential hinge and keeps the same size and corner profile.
2) How many Schlage S3P1021 hinge packs do I need for one door?
One pack does one door up to 7.5 feet tall. The S3P1021 ships three hinges per pack and cannot be broken up and sold as singles. For a taller door, add one hinge for each additional 2.5 feet of height, so an 8 foot door needs a fourth hinge and you would be buying a second pack.
3) Are plain bearing hinges good enough for an apartment entry or a high traffic door?
No. A plain bearing hinge runs machined knuckle against machined knuckle with no bearing between them, and it is not recommended for heavy use on high traffic entrances. The S3P1021 is a residential, medium duty hinge for standard interior and residential doors. For a lobby, corridor, or any opening cycling all day, move to a bearing hinge, for example the Ives 3CB1 concealed bearing full mortise hinge or the Orca Hardware 3535 Series 4-1/2 x 4-1/2 ball bearing commercial hinge.
4) My old hinges are 3-1/2 inch. Can I put 4 inch Schlage S3P1021 hinges in instead?
Not without recutting. The S3P1021 leaf is 4 x 4 inches, so it is a half inch taller and wider than a 3-1/2 inch hinge and the existing mortise pocket in both the door and the jamb has to be lengthened and deepened to match. If you want a straight swap, stay at the size you have: the Delaney RH35xx is a 3-1/2 x 3-1/2 steel residential hinge with the same 5/8 inch radius corner, and the Emtek 91013 is a 3-1/2 x 3-1/2 plated steel plain bearing residential pair with square corners.
5) What is the closest equivalent to the Schlage S3P1021 4 inch plain bearing hinge from another brand?
The Ives 1010RP is the nearest match. Like the Schlage S3P1021, it is a steel plain bearing residential hinge sold as a set of three, and both carry the 1000 series designation. The difference that matters at the door is the corner: the Ives 1010RP has square corners, while the S3P1021 has 5/8 inch radius corners. If the existing mortise in the door and jamb is rounded, stay with the radius corner; a square corner hinge dropped into a radiused pocket leaves a gap at each corner that has to be chiseled out.
6) What 4 inch hinge should I use instead of a plain bearing one on a door that gets constant traffic?
Plain bearing hinges are built for standard residential door cycles, not high traffic entrances. For a 4 by 4 opening that gets worked all day, the Orca Hardware 3535 series is a ball bearing commercial hinge, though it is 4-1/2 by 4-1/2 and would need the mortise enlarged. Staying at 4 by 4 with a commercial hinge means the Orca Hardware 4040 series square corner or the Orca 4014 series with 1/4 inch radius corners, both plain bearing commercial units. For a true bearing hinge in a 4 inch height, the Delaney CH401X is a 4 by 4 commercial ball bearing hinge with square corners.
7) Can I use a plain bearing residential hinge where the spec calls for a security or non-removable pin hinge?
No. The Schlage S3P1021 has a removable pin so the door can be lifted off for maintenance, which is exactly what a security spec rules out on an outswing exterior door. For a 4 by 4 opening with 5/8 inch radius corners, the Deltana DE44R5TA is a steel security hinge in that same size and corner profile, sold in pairs. In 4-1/2 by 4-1/2 with square corners, the Deltana CSB45N is a non-removable pin hinge, and the Hager BB1168 is a full mortise ball bearing hinge with a non-removable pin.
8) I need a plain bearing hinge for a commercial opening, not a residential one. What are the options?
The Schlage S3P1021 is designated residential. For plain bearing in a commercial hinge, Orca Hardware makes the 4040 series at 4 by 4 with square corners and the 4014 series at 4 by 4 with 1/4 inch radius corners, both medium duty, plus the 3514 series at 3-1/2 by 3-1/2 with 1/4 inch radius corners. Note the corner difference: the S3P1021 uses a 5/8 inch radius, so swapping to a 1/4 inch radius or square corner hinge means reworking the mortise corners.
9) Do the Schlage S3P1021 hinges come with screws, or do I need to buy fasteners separately?
Screws are in the box. Each pack of three ships with wood screws for the installation, and the fastener spec covers both wood and machine screws. There are 8 screw holes in an arc pattern per hinge, splitting four to the door leaf and four to the frame leaf.
10) Can I take a door down without unscrewing the hinges?
Yes, the S3P1021 has a removable pin, so you drive the pin out and lift the door off its leaves. Handy for a property manager pulling a door to refinish it or move furniture. If your spec calls for a non-removable pin on an out-swinging door for security, this is not that hinge; Deltana's CSB45N 4-1/2 x 4-1/2 square hinge is sold as an NRP pair.
11) What finishes do the Schlage S3P1021 hinges come in and will they match my other hardware?
Five finishes: 608 satin brass, 619 satin nickel, 622 matte black, 625 bright chrome, and 643E aged bronze. Those are standard BHMA finish numbers, so if your locks and levers are specified by number, match the number rather than the name and the hinges will read the same across the opening.
12) How thick is the steel on the Schlage S3P1021 hinge?
0.085 inch gauge steel, which is the leaf thickness, with 5 knuckles. That is residential weight material and it is why the hinge is rated medium duty rather than heavy. A solid core or heavy slab door hanging on a commercial opening wants a heavy weight leaf instead, like the Don-Jo HWBB74545 4-1/2 x 4-1/2 heavy weight ball bearing hinge.
13) Do I have to specify handing when ordering Schlage S3P1021 mortise hinges?
No. The S3P1021 is a five knuckle full mortise butt hinge with a removable pin, symmetrical leaves and an 8 hole arc pattern, so the same hinge works on a left or right hand door. Pick the size, corner style and finish and you are done. Handing only comes into play on hinges built for one swing, such as electrified concealed conductor models like the Stanley CECB1900R54L, which is sold left-handed.
14) I need a hinge that carries wiring for an electric strike or electrified lock. Does the Schlage S3P1021 do that?
No. The S3P1021 is a plain mechanical butt hinge with no wire path through it. For power transfer through the hinge, use a purpose built electrified model: the BEST CECB179-12C is a steel full mortise concealed bearing electrified hinge with a 12-wire quick connect, and Command Access ETH-CB70 is a 3 knuckle standard weight energy transfer hinge. If you also need door position monitoring, the Command Access ETM-CB70 adds door position sensing.
15) Are Schlage S3P1021 hinges suitable for standardizing across an apartment building's interior doors?
For interior residential doors, yes, and that is the case they suit best. Steel construction, medium duty, factory lubricated knuckles to stop binding, 4 x 4 with a 5/8 inch radius corner which is the most common residential pocket, three per pack so one pack equals one door. Ordering by finish number keeps every unit identical over time. Where the same building has entry doors or high traffic corridors, spec a bearing hinge for those openings and keep the plain bearing on the bedroom and closet doors.
16) Is there a 5/8 inch radius corner hinge in a smaller size than 4 by 4?
Yes. The Delaney RH35xx is a 3-1/2 by 3-1/2 steel residential interior hinge with the same 5/8 inch radius corner, sold in pairs. The corner profile matches the Schlage S3P1021, so it drops into the same style of rounded mortise, just in the smaller height used on lighter interior doors. Measure an existing hinge leaf before ordering; a 3-1/2 inch hinge will not fill a 4 inch mortise.
17) What is the difference between the Schlage S3P1021 and the Delaney 4 inch exterior residential hinge?
Both are 4 by 4 residential hinges with 5/8 inch radius corners, so they share the same mortise prep. The Delaney RH45xx is designated for exterior residential use and ships in pairs; the Schlage S3P1021 is a residential plain bearing hinge in steel, packed three to a set, which is the count recommended for a door up to 7.5 feet. There is also the Delaney RH40xx, a 4 by 4 residential hinge for Castlegate doors, offered 5/8 inch radius by square, meaning one leaf corner style differs from the other, so confirm both the door and jamb pockets before ordering that one.
18) Does an energy transfer hinge substitute for a standard plain bearing mortise hinge?
No, they solve different problems. The Schlage S3P1021 is a plain bearing steel hinge that only carries the door. The Command Access ETH-CB70 is an energy transfer hinge on a steel base with 3 knuckles, and the ETH-BB68 is a 5 knuckle heavy duty version; both run power through the hinge to an electrified lock or strike. The ETM-CB70 and ETM-BB68 add door position sensing on top of the power transfer. If there is no electrified device in the door, none of that wiring is needed and a standard mortise hinge is the correct part.
19) What plain bearing hinge do I use if the door is heavier than a standard residential slab?
The Schlage S3P1021 is a medium duty residential plain bearing hinge. If the door outweighs that, the Emtek 92013 is a heavy duty plain bearing hinge in plated steel, 3-1/2 by 3-1/2 with square corners, sold in pairs; the Emtek 91013 is the residential duty plain bearing version in the same size and corner style. Both are smaller than 4 by 4, so check the existing mortise height. For a heavy door where a bearing hinge is acceptable, the Emtek 94013 is a heavy duty ball bearing hinge in that same 3-1/2 inch square corner format.
20) Is a concealed bearing hinge like the Ives 3CB1 a drop-in for a plain bearing residential hinge?
Not on the same prep. The Ives 3CB1 is a 3-knuckle concealed bearing full mortise hinge rated medium duty, the same duty level as the Schlage S3P1021, but the S3P1021 is a 5 knuckle plain bearing hinge. Knuckle count and bearing style change the barrel appearance and the leaf layout, so the two will not look alike on adjacent doors in the same corridor. The 3CB1HW is the heavy weight concealed bearing version if the opening needs more capacity. For matching what is already hung in a residential fleet, stay with the plain bearing profile.
21) Is the Hager 1129 plain bearing hinge an alternative to a 4 inch full mortise residential hinge?
Only if the door is prepped for it. The Hager 1129 is a half mortise plain bearing commercial hinge, 4-1/2 inch standard weight steel. Half mortise means one leaf mortises into the door while the other surface mounts to the frame, which is a different prep entirely from the Schlage S3P1021, a full mortise hinge that pockets into both door and jamb. The Hager 920 is a full mortise hinge but uses a concealed bearing with 2 knuckle steel construction rather than a 5 knuckle plain bearing barrel.
22) What 5-knuckle hinge matches a 4 inch residential mortise hinge for a heavier commercial door?
The McKinney MP79 MacPro is a 5-knuckle full mortise hinge in standard weight, and the MPB79 MacPro is the 5-knuckle standard weight hinge in the same family; both keep the 5 knuckle barrel look of the Schlage S3P1021. The McKinney T2314 is a non-ferrous 5 knuckle standard weight hinge rated medium duty, the same duty level as the S3P1021, and is the one to reach for where a steel hinge would corrode. The S3P1021 is steel, which is strong but more prone to rust than solid brass or stainless.
23) I need the door to self-close. Does a plain bearing hinge do that?
No. The Schlage S3P1021 is a plain bearing hinge with a removable pin and no closing mechanism. For a self-closing opening, the Stanley Security 2060R is a full mortise spring hinge with square corners at 4-1/2 by 4-1/2 on a ferrous steel base, rated heavy duty. That is a larger leaf and a square corner, so the existing 4 by 4 radius mortise would need to be enlarged and squared in both the door and the jamb.
24) What is the heavy weight equivalent if a residential 4 inch hinge is not enough for a solid core door?
Don-Jo makes heavy weight full mortise ball bearing hinges in the sizes above 4 by 4: the HWBB74545 and HWBB84545 at 4-1/2 by 4-1/2 in satin chrome, the HWBB75045 in steel at 5 by 4-1/2 with a satin chrome finish, and the HWBB85045 in brass at 5 by 4-1/2 in satin chrome. All are rated heavy duty against the medium duty rating of the Schlage S3P1021. Every one of them is a larger leaf, so plan on enlarging the mortise rather than swapping in place.
25) Will a prison or detention hinge work as an upgrade over a standard residential hinge?
That is a different class of hardware, not an upgrade path. The BEST BB855 is a heavy-duty steel double weight concealed ball bearing prison hinge in the detention hardware family, and the Stanley Security BB855 is a double weight prison hinge at 5 by 6 inches furnished with no holes and not swaged. Unswaged and undrilled means the installer does the drilling and the leaves do not close tight to the frame the way a swaged residential hinge does. The Hager 990 STEEL is a full surface prison hinge at 3 by 4 with a welded tip, which mounts on the face of the door rather than in a mortise. For a standard residential opening, a 4 by 4 full mortise hinge is the correct prep.
26) Can I match a matte black or aged bronze hinge finish with a square corner decorative hinge instead?
The Schlage S3P1021 comes in 608 satin brass, 619 satin nickel, 622 matte black, 625 bright chrome, and 643E aged bronze, all with 5/8 inch radius corners. If a decorative barrel is wanted instead, the McKinney SQ3331 is a square barrel 2-knuckle decorative hinge at 4-1/2 by 4-1/2. That changes both the barrel profile and the leaf size against the 5-knuckle 4 by 4 S3P1021, so it reads as a deliberate design choice rather than a match to hinges already hung.
27) The spec calls for a pivot instead of a hinge. What takes the place of a full mortise hinge?
A pivot carries the door at the top and bottom rather than on the edge, so it is not a mortise hinge swap. The BEST DAP-3 is a heavy duty double acting pivot for commercial interior doors, in the emergency rescue hardware family, and it lets the door swing both directions, which a plain bearing mortise hinge like the Schlage S3P1021 cannot do. Also different: the BEST CB1969R is a concealed bearing heavy weight pivot-reinforced hinge, a hinge built to work alongside a pivot set on a heavy door.
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Can I return it if it doesn’t work for me?
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Does the Schlage Residential S3P1021FRP622 come with a warranty?
Absolutely. The Schlage Residential S3P1021FRP622 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Schlage Residential S3P1021FRP622?
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