{"product_id":"coarse-thread-drywall-screws-black-phosphate-timber","title":"DIYUK Coarse Thread Drywall Screws, Black Phosphate, Bugle Head, PH2 Phillips Drive, Plasterboard Fixings for Timber Studs, 3.5-4.8mm x 25-160mm","description":"\u003cp\u003e\u003cstrong\u003eCoarse thread drywall screws (plasterboard screws) in black phosphate for fixing plasterboard to timber (wood) studs, joists and ceiling frames, for trade and DIY drylining work alike.\u003c\/strong\u003e The coarse thread and sharp point make installation of plasterboard quick and effective, and the screw design ensures solid fastening of the boards to timber, which translates into durability. Eleven sizes, from 3.5mm x 25mm up to 4.8mm x 160mm, make these plasterboard fixings suit single boards through to thicker build-ups and deeper timber.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow It Works\u003c\/strong\u003e\u003cbr\u003e\nThe coarse thread is made for timber: its wide, deep turns grip the stud or joist firmly and pull the board tight against the frame. The sharp point gets each screw started quickly; no pilot hole is needed, as the sharp, self-tapping point starts straight into the timber. The bugle head and milling ring give precise installation and a neat appearance of the mounted boards: driven with a PH2 bit, the head draws down to sit flush with the paper face, ready for jointing and painting.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBlack Phosphate Coating\u003c\/strong\u003e\u003cbr\u003e\nThe anti-corrosion black phosphate coating gives corrosion resistance, helping protect the screw against rust and extending its life. The screws are CE marked to EN 14566 and declared reaction to fire class A1.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCoarse thread made for timber studs and joists, for a firm grip and solid fastening of the boards\u003c\/li\u003e\n\u003cli\u003eSharp point for quick, effective installation; no pilot hole is needed, as the sharp, self-tapping point starts straight into the timber\u003c\/li\u003e\n\u003cli\u003eBugle head with milling ring for precise installation and a neat, flush finish on the board\u003c\/li\u003e\n\u003cli\u003eAnti-corrosion black phosphate coating helps protect the screw and extend its life\u003c\/li\u003e\n\u003cli\u003ePH2 Phillips drive, fits a standard PH2 bit for secure bit engagement\u003c\/li\u003e\n\u003cli\u003eCE marked to EN 14566; reaction to fire class A1\u003c\/li\u003e\n\u003cli\u003eEleven sizes in three diameters, 3.5mm, 4.2mm and 4.8mm, from 25mm up to 160mm long\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFinish: black phosphate (anti-corrosion coating)\u003c\/li\u003e\n\u003cli\u003eHead: Bugle head with milling ring · Drive: PH2 Phillips · Thread: Coarse, for timber\u003c\/li\u003e\n\u003cli\u003eDiameters: 3.5mm (0.14\"), 4.2mm (0.17\"), 4.8mm (0.19\") · Lengths: 25mm (0.98\") to 160mm (6.30\")\u003c\/li\u003e\n\u003cli\u003eStandard: CE marked to EN 14566 · Reaction to fire: class A1\u003c\/li\u003e\n\u003cli\u003ePack sizes: 20, 100, 200 or 500 screws\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 3.5mm diameter runs from 25mm to 55mm in four lengths, 4.2mm comes in 70mm and 90mm, and 4.8mm covers the five longest sizes, 100mm to 160mm. All eleven sizes are listed in full below.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003cth\u003eLength (mm)\u003c\/th\u003e\n\u003cth\u003eLength (inch, approx.)\u003c\/th\u003e\n\u003cth\u003eGauge\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e3.5mm (0.14\")\u003c\/td\u003e\n\u003ctd\u003e25mm\u003c\/td\u003e\n\u003ctd\u003e0.98\"\u003c\/td\u003e\n\u003ctd\u003eNo.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3.5mm (0.14\")\u003c\/td\u003e\n\u003ctd\u003e35mm\u003c\/td\u003e\n\u003ctd\u003e1.38\"\u003c\/td\u003e\n\u003ctd\u003eNo.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3.5mm (0.14\")\u003c\/td\u003e\n\u003ctd\u003e45mm\u003c\/td\u003e\n\u003ctd\u003e1.77\"\u003c\/td\u003e\n\u003ctd\u003eNo.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3.5mm (0.14\")\u003c\/td\u003e\n\u003ctd\u003e55mm\u003c\/td\u003e\n\u003ctd\u003e2.17\"\u003c\/td\u003e\n\u003ctd\u003eNo.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4.2mm (0.17\")\u003c\/td\u003e\n\u003ctd\u003e70mm\u003c\/td\u003e\n\u003ctd\u003e2.76\"\u003c\/td\u003e\n\u003ctd\u003eNo.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4.2mm (0.17\")\u003c\/td\u003e\n\u003ctd\u003e90mm\u003c\/td\u003e\n\u003ctd\u003e3.54\"\u003c\/td\u003e\n\u003ctd\u003eNo.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4.8mm (0.19\")\u003c\/td\u003e\n\u003ctd\u003e100mm\u003c\/td\u003e\n\u003ctd\u003e3.94\"\u003c\/td\u003e\n\u003ctd\u003eNo.10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4.8mm (0.19\")\u003c\/td\u003e\n\u003ctd\u003e120mm\u003c\/td\u003e\n\u003ctd\u003e4.72\"\u003c\/td\u003e\n\u003ctd\u003eNo.10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4.8mm (0.19\")\u003c\/td\u003e\n\u003ctd\u003e140mm\u003c\/td\u003e\n\u003ctd\u003e5.51\"\u003c\/td\u003e\n\u003ctd\u003eNo.10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4.8mm (0.19\")\u003c\/td\u003e\n\u003ctd\u003e150mm\u003c\/td\u003e\n\u003ctd\u003e5.91\"\u003c\/td\u003e\n\u003ctd\u003eNo.10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4.8mm (0.19\")\u003c\/td\u003e\n\u003ctd\u003e160mm\u003c\/td\u003e\n\u003ctd\u003e6.30\"\u003c\/td\u003e\n\u003ctd\u003eNo.10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eTypical Applications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor fixing plasterboard to timber studs, joists and frames in timber-frame drylining, in homes and commercial buildings:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStud and partition walls: plasterboard fixed straight to the timber frame\u003c\/li\u003e\n\u003cli\u003eCeilings: boards fixed up into timber joists and the timber frames of suspended ceilings\u003c\/li\u003e\n\u003cli\u003eRenovation and refurbishment work where plasterboard is being fixed or replaced\u003c\/li\u003e\n\u003cli\u003eFinishing projects in residential and commercial construction: walls, ceilings and panels\u003c\/li\u003e\n\u003cli\u003eSingle boards with the 3.5mm sizes (25mm to 55mm); thicker or multi-layer board build-ups and deeper sections of timber with the 4.2mm (70mm to 90mm) and 4.8mm (100mm to 160mm) sizes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Guidance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFit a PH2 Phillips bit to a clutch-controlled or depth-adjustable driver and drive the screw until the head sits level with the paper face of the plasterboard, without breaking through it. This keeps the fixing flush and ready for jointing and painting. Choose a length that passes fully through the board and well into the timber stud or joist behind it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need to drill a pilot hole?\u003c\/strong\u003e\u003cbr\u003eNo. The sharp point starts straight into the timber stud or joist as the screw is driven.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich size do I need?\u003c\/strong\u003e\u003cbr\u003eChoose a length that passes through the board and well into the timber. The 3.5mm sizes (25mm to 55mm) suit single boards; the 4.2mm (70mm and 90mm) and 4.8mm (100mm to 160mm) sizes suit thicker or multi-layer build-ups and deeper timber.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich bit do I need?\u003c\/strong\u003e\u003cbr\u003eA PH2 Phillips bit, ideally in a clutch-controlled or depth-adjustable driver.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat pack sizes are available?\u003c\/strong\u003e\u003cbr\u003eEvery size comes in packs of 20, 100, 200 or 500 screws.\u003c\/p\u003e\n","brand":"DIYUK","offers":[{"title":"3.5x25mm (No.6 x 1\") \/ 20","offer_id":57680104423805,"sku":"BLACKSCREWS-3.5x25mm-020","price":5.97,"currency_code":"GBP","in_stock":true},{"title":"3.5x25mm (No.6 x 1\") \/ 100","offer_id":57680104456573,"sku":"BLACKSCREWS-3.5x25mm-100","price":7.72,"currency_code":"GBP","in_stock":true},{"title":"3.5x25mm (No.6 x 1\") \/ 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