{"product_id":"fermacell-screws-3-9-x-30mm-1000-box","title":"Fermacell Screws 3.9 x 30mm (1000\/Box)","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eFermacell Screws with a 3.9mm diameter and 30mm length, supplied in boxes of 1000. These high-performance self-drilling screws are designed specifically for fixing Fermacell Gypsum Fibre Boards to timber or metal subframes. \u003cbr\u003e\u003cbr\u003eManufactured from hardened steel with a corrosion-resistant phosphate coating, they provide secure and durable fastening without the need for pre-drilling. The fine-thread design ensures high pull-out strength, tight board contact, and clean countersinking without surface damage. \u003cbr\u003e\u003cbr\u003eThe 30mm length is suited to single-layer board fixing in standard wall and ceiling systems.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurpose-designed fastener\u003c\/strong\u003e: Engineered for secure fixing of Fermacell Gypsum Fibre Boards to timber or metal framing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh pull-out resistance\u003c\/strong\u003e: Fine-thread design provides strong mechanical grip and consistent clamping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion protection\u003c\/strong\u003e: Phosphate-coated finish offers long-term resistance against oxidation and moisture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-drilling point\u003c\/strong\u003e: Enables quick, efficient installation without pre-drilling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean countersinking\u003c\/strong\u003e: Screw head forms a flush finish suitable for direct filling or finishing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e30mm length: \u003c\/strong\u003eSuited to single-layer board fixing in standard wall and ceiling systems.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFermacell Gypsum Fibre Boards\u003c\/strong\u003e: Fixing boards to metal or timber substructures in drylining systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall partitions\u003c\/strong\u003e: Suitable for single-layer Fermacell wall installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCeiling linings\u003c\/strong\u003e: Used for board fixing in suspended and direct-fix ceiling systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterior construction\u003c\/strong\u003e: Applicable across residential and commercial drylining frameworks.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eInstallation Guidance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreparation\u003c\/strong\u003e: Ensure substructure is level and properly aligned before fixing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFixing\u003c\/strong\u003e: Drive screws perpendicular to board surface using a depth-limited driver.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpacing\u003c\/strong\u003e: Maintain 250mm maximum centres on walls and 170mm on ceilings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountersinking\u003c\/strong\u003e: Ensure head sits flush with the board surface; avoid overtightening.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinishing\u003c\/strong\u003e: Fill screw heads with Fermacell Joint Filler or Fine Surface Treatment after installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eCompliance \u0026amp; Performance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Hardened steel with phosphate corrosion-resistant coating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread type\u003c\/strong\u003e: Fine-thread design for gypsum fibreboard applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBox quantity\u003c\/strong\u003e: 1000 screws per box.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire and system compliance\u003c\/strong\u003e: Certified for use within Fermacell tested wall and ceiling systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImportant note\u003c\/strong\u003e: Use only Fermacell-approved screws to maintain tested performance characteristics for structural, fire, and acoustic ratings.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Fermacell","offers":[{"title":"30mm","offer_id":53771541577839,"sku":"4007041","price":19.98,"currency_code":"GBP","in_stock":false},{"title":"40mm","offer_id":53771541610607,"sku":"4007042","price":21.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9784\/4591\/files\/Fermacell_Screws_-_Photo_2.jpg?v=1783758715","url":"https:\/\/supplyyard.co.uk\/products\/fermacell-screws-3-9-x-30mm-1000-box","provider":"Supply Yard","version":"1.0","type":"link"}