{"product_id":"black-collated-drywall-screws-coarse-thread-1000-pack","title":"Black Collated Drywall Screws Coarse Thread (1000 Pack)","description":"\u003cp\u003eBlack collated drywall screws with a coarse thread are the standard fixing for attaching plasterboard to timber stud work. Available in four lengths from 25 mm to 42 mm, this 1000-pack is compatible with all standard collated screwdriver attachments for fast, continuous fixing on site.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eBlack phosphate\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eThread Type\u003c\/th\u003e\n\u003ctd\u003eCoarse thread\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eNominal Diameter\u003c\/th\u003e\n\u003ctd\u003e3.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eAvailable Lengths\u003c\/th\u003e\n\u003ctd\u003e25 mm, 32 mm, 38 mm, 42 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eDrive Type\u003c\/th\u003e\n\u003ctd\u003eCollated (compatible with standard drywall screwgun attachments)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003ePack Size\u003c\/th\u003e\n\u003ctd\u003e1000\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eInternal use\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat it's used for\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eFixing single or double layers of plasterboard to timber stud partitions and ceiling joists\u003c\/li\u003e\n  \u003cli\u003eDrylining work on new-build and refurbishment projects where speed of fixing is important\u003c\/li\u003e\n  \u003cli\u003eAttaching plasterboard to treated timber framework in stud walls across residential and commercial sites\u003c\/li\u003e\n  \u003cli\u003eGeneral site joinery tasks where a collated black screw is specified by the drylining contractor\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFitting and handling\u003c\/h2\u003e\n\u003cp\u003eUse a collated screwgun attachment set to the correct depth-stop so the screw head sits just below the board surface without breaking the paper face. For 12.5 mm single-layer plasterboard onto timber studs, the 38 mm or 42 mm length gives sufficient thread engagement into the timber; use 25 mm or 32 mm for fixing into metal back-plates or thinner boards. Store packs in dry conditions indoors, as the black phosphate coating is suited to internal applications only and is not intended for external or high-humidity environments.\u003c\/p\u003e\n\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between coarse thread and fine thread drywall screws?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCoarse thread drywall screws are designed for fixing plasterboard into timber studs. The wider thread pitch bites quickly into softwood and holds firmly. Fine thread screws are intended for fixing into metal stud work, where the tighter thread grips the thinner metal without stripping.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat length drywall screw do I need for 12.5 mm plasterboard onto timber?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor a single layer of 12.5 mm plasterboard fixed to timber studs, a 38 mm screw is the most common choice. This gives around 25 mm of thread engagement into the timber, which meets standard drylining recommendations. Use 42 mm where a deeper bite is preferred or studs are irregular.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAre these screws suitable for outdoor or damp conditions?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The black phosphate finish provides basic corrosion resistance suitable for dry internal applications only. For external fixings or humid environments such as bathrooms, a stainless steel or zinc-plated screw should be used instead.\u003c\/p\u003e\n\n\u003cp\u003eNottage Timber Merchants supplies these collated drywall screws alongside a full range of sheet materials including plasterboard alternatives. Browse our \u003ca href=\"\/collections\/mdf-sheets\"\u003eMDF sheets collection\u003c\/a\u003e for internal boarding and lining work. Next-day delivery is available to Bridgend and across South Wales on stocked items.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the difference between coarse thread and fine thread drywall screws?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Coarse thread drywall screws are designed for fixing plasterboard into timber studs. The wider thread pitch bites quickly into softwood and holds firmly. Fine thread screws are intended for fixing into metal stud work, where the tighter thread grips the thinner metal without stripping.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What length drywall screw do I need for 12.5 mm plasterboard onto timber?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"For a single layer of 12.5 mm plasterboard fixed to timber studs, a 38 mm screw is the most common choice. This gives around 25 mm of thread engagement into the timber, which meets standard drylining recommendations. Use 42 mm where a deeper bite is preferred or studs are irregular.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these screws suitable for outdoor or damp conditions?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No. The black phosphate finish provides basic corrosion resistance suitable for dry internal applications only. For external fixings or humid environments such as bathrooms, a stainless steel or zinc-plated screw should be used instead.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"Nottage Timber Merchants","offers":[{"title":"3.5 x 25 mm","offer_id":53068308742481,"sku":null,"price":17.44,"currency_code":"GBP","in_stock":true},{"title":"3.5 x 32 mm","offer_id":53068314607953,"sku":null,"price":18.7,"currency_code":"GBP","in_stock":true},{"title":"3.5 x 38 mm","offer_id":53068320309585,"sku":null,"price":15.96,"currency_code":"GBP","in_stock":false},{"title":"3.5 x 42 mm","offer_id":53068329484625,"sku":null,"price":17.32,"currency_code":"GBP","in_stock":true},{"title":"3.5 X 50 mm","offer_id":53068389974353,"sku":null,"price":19.56,"currency_code":"GBP","in_stock":true},{"title":"3.5 x 75 mm","offer_id":53068429164881,"sku":null,"price":34.3,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/1467\/1697\/files\/collatedscrew.jpg?v=1771252336","url":"https:\/\/www.timberonline.co.uk\/products\/black-collated-drywall-screws-coarse-thread-1000-pack","provider":"Nottage Timber Merchants","version":"1.0","type":"link"}