In stock


Stronghold hitchlock for Knott, Steelpress & Winterhoff hitches

  • Universal fit, suitable for at least 44 coupling models and variants
  • High security patented locking system
  • Suitable for braked and unbraked trailers, horseboxes, car transporters etc
  • Approved to Sold Secure Gold standard for caravans and trailers
  • Approved by Secured by Design
  • Patent pending design
  • Lock fits between handle and main coupling body to completely block coupling use
  • Immobilises hitch to prevent tow-away theft
  • Fitted in under 10 seconds
  • High security pick-free locks have thousands of possible key combinations and are supplied with 3 keys, plus a key identity tag
  • Storage bag included
  • Supplied in a retail display box with colour pictorial instructions
  • Please scroll down to see full application list

Contents Include

  • Hitchlock cover
  • Locking bolt body
  • Locking bolt lock holder with three keys
  • Plastic hitch ball & tee assembly - SH54106B
  • Fitting instructions and warranty card
  • Storage bag


  • SH54106B – Blue Plastic Security Ball & Tee
  • Application List


    K7.5   Knott K7.5 C, D, K, L
    K14  Knott K14 A, B
    KK14  Knott KK14 B, C
    KQ14  Knott KQ14 A, B
    K20  Knott K20 A, B

    Steelpress (SSP)

    ZSK-750 Steelpress ZSK-750  A, B, C, D, L ,H i
    ZSK-1300  Steelpress ZSK-1300 C, E, F, K, H, i
    ZSK-1700 Steelpress ZSK - 1700 B, C, D, E
    ZSK-2000 Steelpress ZSK - 2000 B, C
    BC2300  Steelpress BC2300 B, C
    BC3000.1 Steelpress BC3000 A, B, C, D


    WW8 Winterhoff WW8 A, B, C, D, E, G
    WW150 Winterhoff WW150 VF

    SH5410 Fitting Application Guide

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    You're reviewing:SH5410 Stronghold Strongbox Ultra Hitchlock for Pressed Steel Hitches

    Q. I have lost my keys, what can I do?

    We offer a premium key cutting service. Please have your key number, which you should have noted in your instructions card.  Please contact the sales department on 0121 270 4301 or to order the replacement keys. Lead time is 15 days from date of order.

    If you have not recorded your key number we offer a replacement lock and set of 3 keys. We do carry some stock but please be aware there may be an extended lead time for stock to arrive.

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    Stronghold Security Products:

    Extended Warranty Form

    Our Stronghold Security products carry a 12 months mechanical defect warranty, plus an extra 4 years if you complete our warranty form within one month from date of purchase

    Register Your Security Product


    Stronghold security products have been passed stringent attack tests from independent test houses, these include Sold Secure, VCM and Secured by Design.


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    Insurance Approved Security Products

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    What Security Product Do I Need?

    We have created a guide to help you decide what security product device or devices you will need to protect your caravan, motorhome, car or trailer.

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