{"product_id":"victorian-half-sprung-mushroom-mortice-knob","title":"Victorian Half Sprung Mushroom Mortice Knob","description":"\u003cp\u003eIntroducing the Victorian Half Sprung Mushroom Mortice Knob, a perfect blend of elegance and functionality for your doors. This beautifully crafted knob features a classic Victorian mushroom design, finished in high-quality brass, adding a touch of sophistication to any space.\u003c\/p\u003e\n\u003cp\u003eWith a rose diameter of 61mm and a knob diameter of 52mm, this face-fix mortice knob is designed for easy installation and durability. The half-sprung mechanism allows for a smooth operation, providing partial spring action that ensures the knob returns to its original position after use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVictorian mushroom-style mortice knob\u003c\/li\u003e\n\u003cli\u003eHalf sprung operation for ease of use\u003c\/li\u003e\n\u003cli\u003eRose diameter: 61mm\u003c\/li\u003e\n\u003cli\u003eKnob diameter: 52mm\u003c\/li\u003e\n\u003cli\u003eProjection: 71mm\u003c\/li\u003e\n\u003cli\u003eElegant brass finish\u003c\/li\u003e\n\u003cli\u003eSupplied as a pair with all necessary fixings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment \u0026amp; What to Check\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBefore installation, ensure that your door thickness is compatible with the knob and that it works with your existing mortice lock or latch case. The face-fix screws require accessible surface access on the door face for proper attachment. Additionally, confirm that the knob's projection of 71mm will not obstruct any surrounding door hardware or frame components.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCommon Ordering Mistakes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOrdering a single knob instead of a pair for both sides of the door\u003c\/li\u003e\n\u003cli\u003eNot checking the face-fix screw hole positions in relation to door thickness\u003c\/li\u003e\n\u003cli\u003eAssuming full sprung operation when the knob is half sprung\u003c\/li\u003e\n\u003cli\u003eOverlooking projection clearance for narrow or recessed door frames\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Specification\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRose diameter: 61mm\u003c\/li\u003e\n\u003cli\u003eRose height: 10mm\u003c\/li\u003e\n\u003cli\u003eKnob diameter: 52mm\u003c\/li\u003e\n\u003cli\u003eProjection: 71mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eElevate your door hardware with the Victorian Half Sprung Mushroom Mortice Knob, combining timeless design with practical functionality.\u003c\/p\u003e","brand":"CARLISLE BRASS","offers":[{"title":"Default Title","offer_id":43415154589785,"sku":"DF-M35","price":69.63,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/9035\/8617\/files\/Screenshot_9-6-2026_13258_www.duffells.com.jpg?v=1781004656","url":"https:\/\/metalix.co.uk\/products\/victorian-half-sprung-mushroom-mortice-knob","provider":"Metalix Hardware","version":"1.0","type":"link"}