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SKU: WAT-K51M-400-C4-USD32

Heavy Duty Self-Closing Spring Hinges / Door Closers - 4" Inch x 4" Inch - Full Mortise - 304 Stainless Steel - For 1-3/8" Inch Thick Doors up to 260 lbs. or 330 lbs. - 4 Pack

Finish
Closing Type
90° Hold-Open

In stock, ready to ship

  • ✓ Qualifies for free shipping!
  • ✓ Easy 45 day returns
  • ✓ Typically ships in 1-2 business days

These Heavy Duty Self-Closing Spring Hinges / Door Closers offer superior speed control, adjustable power, and tension settings. They measure 4" x 4", have a weight capacity of 330 lbs., are full mortise, and are made of 304 Stainless Steel. They are available in Satin Stainless Steel, Flat Black, Satin Brass, and Dark Satin Bronze finishes. There are mechanical or hydraulic hybrid closing types available, as well as an option for 90° hold-open.

Product Specifications:

  • Heavy Duty Self-Closing Spring Hinges /  Door Closers
  • Size: 4" Inch x 4" Inch
  • Full Mortise
  • Material: 304 Stainless Steel
  • Door Thickness: 1-3/8" Inch
  • Door Weight:
    • Models A4 & B4: Up to 330 lbs.
    • Models C4 & D4: Up to 260 lbs.
  • Approximate Door Size: 4' feet x 8' feet
  • Door Range: ≤120°
  • Finishes Available: Satin Stainless Steel, Flat Black, Satin Brass, Dark Satin Bronze
  • Closing Types Available: Mechanical Only, Hydraulic Hybrid
    *Mechanical Only are fully exterior
    *Hydraulic Hybrid hinges have fluid motion and are for interior use only
  • 90° hold-open available
  • Fixing Method: Screw-On, only spot weld AFTER speed adjustment
  • Fully adjustable closing force and speed according to environment needs
  • Numerical adjustment panel on hinge end to set up precise tension
  • Aesthetically pleasing compared to door closers -- without extrusive arms 
  • UL certified cycle testing ensures many years of low maintenance. 
  • Template
  • 4 Pack - 4 hinges per door
  • Click here for Heavy Duty Self-Closing Spring Hinges / Door Closers with a weight capacity up to 260 lbs. (3 pack - 3 hinges per door)
  • To learn more about Waterson Hinges, see our in depth guide here
Model Weight Capacity Mechanical Only -M
Hydraulic Hybrid -H
90° Hold Open Fluid Motion Hinge Type
K51M-400-A4   330 lbs. M - Exterior DS.SA.SA1.SA1
K51M-400-B4   330 lbs. H - Interior DS.HA.SA.SA1
K51M-400-C4 260 lbs. M - Exterior SB.SA.SA.SA1
K51M-400-D4 260 lbs. H - Interior DS.HA.SB.SA1

 


Installation Kits:

  • Both machined #12-24 UNC ½”L and wooden tapping #12 x 1 ¼” screws included -- eight (8) of each type per hinge. Pack contains five (5) spares as well.
  • Three steel adhesive shims for gap adjustment between door and frame as needed
  • Tension Crook: Keeps hinge open during installation  
  • 5mm & 3mm hex wrenches  

Compliance Standards:

  • ANSI A156.7 Template Hinge : 4 ½ x 4 ½
  • CSI Spec 08 7100 Door Hardware & 08 7808 Self-closing Hinges  
  • ADA Force : opening force no more than 5 lbs
  • ADA Closing Speed: at least 5 sec to move from 90° to 12°
  • ADA Vertical Clearance: Does not intrude into the doorway as do some overhead closers

US Returns: Click to Start Your Return

Note: Please be sure to specify the quantity of products you are returning during the return process or your refund / credit will be incorrect.

International Returns: Email us at help@hingeoutlet.com for Return Authorization

100% Performance Guarantee:

We want you to love your hinges and hardware.  If you're not 100% satisfied with the quality or performance of your purchase, return it for a full refund within 45 days.  Depending on the Return Reason selected, the return shipping amount may be deducted from your return.

Keep it in the box:

When possible, please keep the hinges and hardware in the box which it came in.  If you have used the product, please include all of the screws and hardware that came with your purchase.

Key items to note about your return:

  • Please allow 14 business days for us to process returns.
  • All returns must come back to us in sellable condition or you will not receive a full refund.
  • Depending on the return reason you select, you may not get a refund for your shipping costs.  If you selected free shipping, the shipping fee will be deducted from your return if the product was ordered incorrectly by you.

Clearance items:

Clearance and Flash Sale items are not eligible for return. If you believe you've received a defective item, please contact customer service at help@hingeoutlet.com

Exchanges:

We do offer exchanges of your hinges and hardware if you ordered the wrong size or finish.  If you would like to exchange an item we recommend selecting store credit during the return process. Store credit is issued directly to your Hinge Outlet account upon receipt of your return.

We're here to help:

We ask that all returns be submitted in accordance with our policy, but we'll always do the right thing to help. Please connect with our Customer Service Team via email at help@hingeoutlet.com for assistance.

Start Your Return:

Your order number can be found in your confirmation email, or by logging into your Hinge Outlet account and visiting the "my account" page.

Click here to start your Hinge Outlet Return

 

Shipping Policy
All in-stock orders are shipped within 48 hours, Monday thru Friday.  Orders are shipped via US Postal Priority Mail or United Parcel Service and usually take 2-3 business days for delivery.  Overnight shipments are available.  Please contact us for pricing.

Shipping/Handling Cost Chart - US (48 Contiguous States)

Total Sale Amount:

Shipping Charge:

$.01 to $4.99

$5.50

$5.00 to $25.00 $7.75

$25.01 to $50.00

$9.25

$50.01 to $120.00 $12.25
Over $120.00 Free


Shipping/Handling Cost Chart - US (Hawaii / Alaska / Canada Only)

Total Sale Amount:

Shipping Charge:

$.01 to $50.00

$25.95

Over $50.01

$45.95

Over $500 $89.95


Shipping/Handling Cost Chart - Rest of World
We can ship internationally beyond Canada.  We will need to determine the shipping costs at the time of purchase as they vary widely.

We will not be responsible for any duties and/or brokerage fees.  Those are the customers' obligations.  We generally ship UPS but may use US International Priority Mail as an alternative.

Please contact us if you need more information or would like a quote on shipping cost.

Privacy Policy:
Hinge Outlet respects the privacy rights of our customers.  Any and all information you provide us is kept with strict confidence. We respect your privacy and will not sell or provide your personal information to anyone.

Why Purchase From Us

We are a family owned and operated business founded in 2005. Our passion is hinges and hardware. We truly enjoy helping our customers find what they are looking for and completing their projects. We take great pride in sourcing the highest quality products and offering them at the most affordable prices. The next time you need hinges, think of Hinge Outlet, Inc.

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