{"product_id":"3500-locking-mortice-hookbolt","title":"3500 Locking Mortice Hookbolt","description":"\u003cp\u003e\u003cstrong\u003eProduct Information\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Willenhall 3500 series mortice hook lock is designed specifically for sliding doors, featuring a robust 4 lever mechanism to operate the bottom hook. This model comes complete with a pair of stylish handles, previously branded as Century.\u003c\/p\u003e\n\u003cp\u003eThese locks stand out with their unique flush fit handles, which are recessed to ensure smooth sliding without obstruction. The lock is key-operated, providing added security.\u003c\/p\u003e\n\u003cp\u003eIn line with other mortice locks, the grey lock case is distinctive, with unique measurements that set it apart. Please refer to the accompanying line drawing for precise details.\u003c\/p\u003e\n\u003cp\u003eAvailable exclusively in a satin chrome finish, this lock utilizes a hook mechanism instead of a traditional deadbolt, making it ideal for sliding doors.\u003c\/p\u003e\n\u003cp\u003eThe hookbolt operates similarly to a deadbolt, engaging with the strike to secure the door against unauthorized sliding. The top hook automatically throws into place and can be easily retracted using the lever handle from either side, while the bottom hook can be locked with a key from both inside and outside.\u003c\/p\u003e\n\u003cp\u003eIncluded with the lock is a matching striking plate and a pair of recessed handles.\u003c\/p\u003e\n\u003cp\u003eThis lock is suitable for most internal sliding wooden doors and is non-handed, making installation straightforward.\u003c\/p\u003e\n\u003cp\u003eEach lock comes with two steel keys as standard, and additional keys can be ordered by selecting key blanks and the desired quantity from the associated products on this page.\u003c\/p\u003e\n\u003cp\u003ePlease note that these locks cannot be keyed alike, and we offer a variety of associated parts, including key blanks, available for selection from the associated products.\u003c\/p\u003e\n\u003cp\u003eThese locks are not suitable for fire doors.\u003c\/p\u003e\n\u003cp\u003eWillenhall locks are a well-established brand in the UK, known for their unique offerings that are hard to find elsewhere.\u003c\/p\u003e\n\u003cp\u003eRegular latches and deadbolts are ineffective on sliding doors, as they can easily slide out of the strike. Instead, sliding door locks utilize an expanding claw or hook to secure the door, preventing it from being opened once engaged. Mortice lever locks, often fitted to wooden doors, can also be used in steel, aluminum, and composite doors, providing versatility.\u003c\/p\u003e\n\u003cp\u003eThere are various types of lever locks available in the UK. Dead locks (mortice dead locks) are key-operated only, while sash locks (mortice sash locks) feature both a deadbolt and a latch operated by a handle. Both types throw the deadbolt into a strike plate, with sash locks also accommodating a sprung-loaded reversible latch.\u003c\/p\u003e\n\u003cp\u003eLever mortice deadlocks are suitable for both internal and external doors, but we recommend using a British Standard BS3621 product for external doors to ensure maximum security. Always check with the homeowner's insurer regarding requirements for residential and commercial properties.\u003c\/p\u003e\n\u003cp\u003eWhen replacing an existing lever mortice lock, be aware that the new lock may be larger due to security upgrades or design changes. The lock hole can typically be enlarged with a hammer and chisel, which may also apply to strikes.\u003c\/p\u003e\n\u003cp\u003eFor fitting a lever mortice lock to new timber doors, we recommend using Souber’s DBB morticer for efficient results. You can find the DBB1 morticer\u003c\/p\u003e\n\u003cp\u003eEnsure your door is thick enough to accommodate the mortice lock; the Master Locksmith Association suggests a minimum thickness of 44mm.\u003c\/p\u003e\n\u003cp\u003eA lever mortice lock secures a door by throwing a bolt into a metal keep or strike, preventing it from being opened. The bolt can be locked or unlocked from either side using a key. If the key cuts align with the levers inside the lock, the user can turn the key to engage or disengage the bolt. Using the wrong key will misalign the levers, rendering the lock inoperable.\u003c\/p\u003e\n\u003cp\u003eDuffells offers a vast selection of mortice locks at various security levels, with many available for delivery within 24 hours. We provide express delivery options alongside standard delivery, and you can find detailed delivery information on our extensive product range.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Specification\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct category:\u003c\/strong\u003e Sliding Door Lock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Sliding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase colour:\u003c\/strong\u003e Grey\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandle piercing size:\u003c\/strong\u003e N\/A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase height:\u003c\/strong\u003e 115mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentres:\u003c\/strong\u003e 57mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFaceplate height:\u003c\/strong\u003e 166mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFaceplate width:\u003c\/strong\u003e 25mm\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDeadbolt throw:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFollower size:\u003c\/strong\u003e 8mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKeys:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBritish Standard?:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUKCA marked?:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCE marked?:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifire approved?:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire rated?:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCan be keyed Alike?:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHanded?:\u003c\/strong\u003e Non handed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEscutcheon plates supplied:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Willenhall","offers":[{"title":"Default Title","offer_id":55126835888466,"sku":"3500SC-UDF","price":316.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1081\/7994\/7858\/files\/3500SC_1.avif?v=1792383341","url":"https:\/\/upvcfittings.co.uk\/products\/3500-locking-mortice-hookbolt","provider":"UPVC Fittings","version":"1.0","type":"link"}