SAS Fort K Fortress Trailer Hitch Lock For Knott, Albe, Winterhoff Couplings
SKU: 35591718304

SAS Fort K Fortress Trailer Hitch Lock For Knott, Albe, Winterhoff Couplings

Sale price$122.39 Regular price$135.99
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  • USA
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

SAS Fort K Fortress Trailer Hitch Lock For Knott, Albe, Winterhoff CouplingsInsurance Approved hitch lock completely covers hitch head and bolts. The Fortress K Hitch Lock fits Albe Cast Head, Knott Braked Pressed Head and Knott Unbraked Pressed Head (May require removal of stand), as well as the Winterhoff WW8, WW13 & WW30 Cast Hitch. For Unbraked trailers with the hitch to fit this hitch lock, the total height from the top to the bottom of the fixing bolt can be no more than 73mm to fit due to the way the hitch is mounted

Insurance Approved hitch lock completely covers hitch head and bolts.

The Fortress K Hitch Lock fits Albe Cast Head, Knott Braked Pressed Head and Knott Unbraked Pressed Head (May require removal of stand), as well as the Winterhoff WW8, WW13 & WW30 Cast Hitch. For Unbraked trailers with the hitch to fit this hitch lock, the total height from the top to the bottom of the fixing bolt can be no more than 73mm to fit due to the way the hitch is mounted on the drawbar. If the bolts on the hitch are too long, they can be ground down to fit as necessary.

Hitch lock for hitch fitted on some Ifor Williams Trailers and other unbraked trailers where the maximum height of the hitch.

Hitch lock will fit hitched and unhitched to prevent car and caravan being separated in car park or motorway service station.

The maximum security safe style lock on this hitch lock has twin hardened pins to lock and anti-drill protection on the lock to deter thieves.

Hitch lock finished in Zinc pacifate and painted bright red for maximum visual deterrent.

Compact and easily stored which makes it ideal for touring, tough plastic hitch lock carry case available as an extra from SAS.

Other Hitch Locks also available for other hitches.

The SAS Fortress K Hitch Lock fits the following hitches:

  • Knott Braked Pressed Head
  • Knott Unbraked Pressed Head (May require removal of stand)
  • Winterhoff WW8
  • Winterhoff WW13
  • Winterhoff WW30 Cast

Picking The Correct Hitch Lock

Please check the above 'Hitch Lock Finder Guide' seen in the images provided. Please use this sizing guide to ensure you purchase the correct hitch lock for your trailer. Please note we sell the entire SAS Security product range, so if a different hitch lock is more suitable, please visit our eBay Store and 'Security Products = Trailer Hitch Locks' category to find the SAS listing for it.

  • Letters A – W show different hitches down the left hand column, corresponding with the hitch photos above the table. Along the top shows the hitch models and where the table shows a spot, that hitch lock should fit.
  • This Hitch Lock finder guide is not exhaustive and may not include your hitch if it is not so common. If you can’t find your hitch on this table or want further clarification on what hitch lock will fit your hitch, please contact us by sending us a photo of your hitch and one of our team will try to assist further. The hitch mounting on the trailer draw bar/A-Frame could also affect which hitch locks will fit so please bear this in mind. The Fortress Range of Hitch Locks works best on braked trailers.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 35591718304

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JoslinsROCK!!!
Omaha, US
★★★★★ 5
⭐️⭐️⭐️⭐️⭐️ I can breathe again — and my house says thank you 😂
Pattern Name: 20x20x1, Style: Merv 11
⭐️⭐️⭐️⭐️⭐️ I can breathe again — and my house says thank you 😂 These Amazon Basics MERV 11 air filters have been a game changer for my HVAC system. I installed them and immediately felt like my home went from “dust tornado aftermath” to “spa-day air vibes.” Whether it’s pollen, pet hair, or mystery dust bunnies lingering in the corners, these filters make the air feel noticeably cleaner and fresher. Installation was about as easy as ripping plastic wrap off a new gadget — pop out the old filter, slide these in, and suddenly the air quality goes from “huh?” to “ahhh.” The electrostatic pleated design grabs everything from sneaky dust motes to pet dander like a champ, and I can actually tell when the AC kicks on that the air feels crisper — in a good way. 🌬️ Between the six count and the solid MERV rating, this was a smart purchase that keeps my HVAC happy and my allergies way more manageable. If you want clean air without the hassle, these filters are a fantastic value and really get the job done. Highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 26, 2026
R
Verified Purchase
Ryan
Lexington, US
★★★★★ 4
Good, I think.
Pattern Name: 16x25x1, Style: Merv 11
Not my area of expertise but wanted something with a thicker filter and these seem to be doing well. They last 3+ months before discoloration is noticeable to the point you’d think it’s time to put in a new filter. The 6-pack price can’t be beat, truly. Easily installed and used, fits perfect to size and looks clean. Unknown relief on allergies so far since it’s been winter but I’m optimistic.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026
B
Verified Purchase
Ben Hancock
Lowell, US
★★★★★ 5
Better quality that name brand hardware store
Pattern Name: 20x20x1, Style: Merv 11
These are a great value for a multi-pack. They fit perfectly in the vent and you can definitely notice the difference in air quality. It’s much easier to just have a stack of these on hand so I can swap them out regularly without a trip to the store.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
M
Verified Purchase
Matthew
West Palm Beach, US
★★★★★ 5
Great value filters – do the job well
Pattern Name: 12x12x1, Style: Merv 8
These filters are a great value for the price, especially getting a 6-pack. They fit perfectly (just keep in mind the actual size listed), and installation is quick and easy. I’ve been using them regularly and they do a solid job catching dust and keeping the air clean without restricting airflow. Good balance between filtration and performance. Nice to have multiple on hand so I can swap them out regularly without thinking about it. I’ll definitely keep buying these.
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Reviewed in the United States on April 14, 2026
C
Verified Purchase
Cole Reichel
New York, US
★★★★★ 5
Perfect measurement and fit
Pattern Name: 20x25x1, Style: Merv 8
Seem to be of good quality, we will see in two more months if they hold up, but one month down, still doing good!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2026

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