{"title":"A4 AISI 316 Self-Tapping Screws | Pozi, Torx \u0026 Slotted","description":"\u003cp\u003eDiscover our comprehensive range of A4 AISI 316 Self-Tapping Screws | Pozi, Torx \u0026amp; Slotted at Duchy Fasteners, your trusted UK supplier. Whether you are in trade, construction, engineering, or DIY, we have the right products for your needs. Buy online UK for high-quality materials and reliable performance, with free delivery on qualifying orders.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePozi Countersunk Self Tapping Screws Stainless Steel A4\u003c\/li\u003e\n\u003cli\u003ePozi Pan Head Self Tapping Screws Stainless Steel A4\u003c\/li\u003e\n\u003cli\u003ePozi Raised Countersunk Self Tapping Screws Stainless Steel A4\u003c\/li\u003e\n\u003c\/ul\u003e","products":[{"product_id":"a4-no8-x-5-8-slot-rsd-csk-s-tap-din-7973","title":"8MM X 5MM - \/8 SLOTTED RAISED COUNTERSUNK SELF TAPPER DIN 7973 A4","description":"\u003cp\u003eA4 No8 x 5\/8 SLOT RSD\/CSK S\/TAP DIN 7973 is a premium-grade fastening solution engineered for high-performance applications. Manufactured from corrosion-resistant stainless steel, it offers durability and strength for various industrial and construction needs. Designed to withstand demanding environments, it ensures a secure and long-lasting hold.\u003c\/p\u003e","brand":"Duchy Fasteners","offers":[{"title":"Default Title","offer_id":50330750189886,"sku":"A4SRST400016","price":0.57,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0861\/3183\/5198\/files\/Self-tapcskslot_png_72e8c506-e741-4e4a-877a-1d788e19e63c.png?v=1780405691"},{"product_id":"pozi-countersunk-self-tapping-screws-stainless-steel-a4","title":"Pozi Countersunk Self Tapping Screws Stainless Steel A4","description":"\u003cp\u003eThese A4 recessed countersunk self tapping screws to DIN 7982 are manufactured from premium 316 stainless steel, delivering outstanding corrosion resistance and long-term reliability in demanding environments. Designed to cut their own thread into pre-drilled holes, they provide a secure, vibration-resistant hold without the need for separate tapping operations.\u003c\/p\u003e\n\n\u003cp\u003eThe recessed countersunk head allows the screw to sit flush with the surface for a clean, professional finish, making these fasteners ideal where appearance and safety are important. They are widely used in marine, offshore, and coastal projects, as well as industrial, construction, engineering, and general fabrication applications where consistent performance and durability are essential.\u003c\/p\u003e\n\n\u003cp\u003e316 stainless steel offers excellent resistance to rust, pitting, and chemical attack, making these self tapping screws particularly suitable for use in wet, humid, or chemically aggressive conditions. Whether you are fixing metal to metal, attaching components to stainless steel, or carrying out maintenance in corrosive environments, these screws provide a strong and dependable fastening solution.\u003c\/p\u003e\n\n\u003cp\u003eEngineered to the DIN 7982 standard, they offer precise dimensions, sharp cutting threads, and reliable drive engagement, helping to reduce installation time and improve productivity on site or in the workshop. Choose these A4 stainless steel recessed countersunk self tapping screws when you need a high-quality fastening that combines strength, corrosion resistance, and a neat, low-profile finish.\u003c\/p\u003e","brand":"Duchy Fasteners","offers":[{"title":"No.2 \/ 1\/2\"","offer_id":52755832013118,"sku":"A4CRST200012","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"No.4 \/ 1\/4\"","offer_id":52755831980350,"sku":"A4CRST300006","price":0.03,"currency_code":"GBP","in_stock":true},{"title":"No.4 \/ 3\/8\"","offer_id":52755831947582,"sku":"A4CRST300010","price":0.03,"currency_code":"GBP","in_stock":true},{"title":"No.4 \/ 1\/2\"","offer_id":52755831914814,"sku":"A4CRST300012","price":0.03,"currency_code":"GBP","in_stock":true},{"title":"No.4 \/ 5\/8\"","offer_id":52755831882046,"sku":"A4CRST300016","price":0.04,"currency_code":"GBP","in_stock":true},{"title":"No.4 \/ 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Produced from high-grade 316 stainless steel, they deliver outstanding corrosion resistance, even in harsh, wet, or chemically aggressive environments.\u003c\/p\u003e\n\n\u003cp\u003eEngineered for performance and durability, these corrosion-resistant fasteners are ideal for use in construction, marine, offshore, industrial, and general engineering projects where long-term integrity is critical. The pan head design offers a clean, low-profile finish with excellent driving stability, making installation straightforward and secure.\u003c\/p\u003e\n\n\u003cp\u003eThe self tapping thread form allows these stainless steel screws to cut their own mating thread in suitable materials, reducing the need for pre-tapped holes and speeding up assembly. They are commonly used for fixing metal sheet, plastics, composite panels, and fittings in environments where standard zinc-plated or lower-grade stainless fasteners would quickly deteriorate.\u003c\/p\u003e\n\n\u003cp\u003eKey features include:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eA4 \/ 316 stainless steel construction for superior corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eCompliant with DIN 7981 for consistent quality and fit\u003c\/li\u003e\n  \u003cli\u003ePan head design for a neat appearance and positive drive engagement\u003c\/li\u003e\n  \u003cli\u003eSelf tapping screw thread for fast, efficient installation\u003c\/li\u003e\n  \u003cli\u003eSuitable for marine, coastal, industrial, and outdoor use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWhether you are securing fixtures on a boat, assembling exterior metalwork, or completing high-spec industrial installations, these 316 stainless steel self tapping pan head screws provide a secure, long-lasting hold with minimal maintenance. Choose them wherever reliability, safety, and corrosion resistance are essential.\u003c\/p\u003e","brand":"Duchy Fasteners","offers":[{"title":"No.4 \/ 1\/4\"","offer_id":52755836076350,"sku":"A4PRST300006","price":0.02,"currency_code":"GBP","in_stock":true},{"title":"No.4 \/ 3\/8\"","offer_id":52755836043582,"sku":"A4PRST300010","price":0.03,"currency_code":"GBP","in_stock":true},{"title":"No.4 \/ 1\/2\"","offer_id":52755835978046,"sku":"A4PRST300012","price":0.05,"currency_code":"GBP","in_stock":true},{"title":"No.4 \/ 5\/8\"","offer_id":52755836010814,"sku":"A4PRST300016","price":0.03,"currency_code":"GBP","in_stock":true},{"title":"No.4 \/ 3\/4\"","offer_id":52755835945278,"sku":"A4PRST300020","price":0.04,"currency_code":"GBP","in_stock":true},{"title":"No.4 \/ 1\"","offer_id":52755835912510,"sku":"A4PRST300025","price":0.06,"currency_code":"GBP","in_stock":true},{"title":"No.4 \/ 1 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Manufactured from 316 marine grade stainless steel to DIN 7972, they offer outstanding corrosion resistance, making them ideal for use in marine, industrial, construction, and outdoor applications where exposure to moisture, salt, or harsh weather is expected.\u003c\/p\u003e\n\n\u003cp\u003eDesigned with a slotted countersunk head, these self-tapping screws sit flush with the material surface once installed, providing a clean, professional finish that reduces snagging and improves appearance. The self-tapping thread cuts its own mating thread into pre-drilled holes in materials such as metals, plastics, and some hardwoods, helping to speed up installation and deliver a secure, vibration-resistant hold.\u003c\/p\u003e\n\n\u003cp\u003eAvailable in a wide range of gauges and lengths, this selection allows you to choose the right combination for light, medium, and heavy-duty fastening tasks. Whether you are fixing marine hardware, fabricating stainless assemblies, securing cladding, or carrying out general engineering and maintenance work, these screws provide a strong, dependable solution.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eMaterial: A4 \/ 316 stainless steel for superior corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eStandard: Manufactured to DIN 7972 for consistent quality and fit\u003c\/li\u003e\n  \u003cli\u003eHead type: Slotted countersunk for a flush, neat finish\u003c\/li\u003e\n  \u003cli\u003eThread type: Self-tapping, ideal for use in pre-drilled holes\u003c\/li\u003e\n  \u003cli\u003eSuitable for marine, industrial, construction, and outdoor use\u003c\/li\u003e\n  \u003cli\u003eResistant to rust, staining, and pitting in aggressive environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eChoose these A4 316 stainless steel self-tapping countersunk screws when you need a high-performance fastener that combines durability, corrosion 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Manufactured from marine-grade stainless steel, they offer outstanding resistance to corrosion, rust, and chemical attack, making them ideal for coastal, offshore, and high-moisture locations.\u003c\/p\u003e\n\n\u003cp\u003eDesigned with a recessed, raised countersunk head and self-tapping thread, these fasteners create a secure, lasting hold in a wide range of materials. They are suitable for marine, construction, industrial, and engineering applications where high tensile strength, stability, and precision are essential. Whether used for structural assemblies, fixings exposed to the elements, or critical mechanical installations, they deliver consistent, dependable performance.\u003c\/p\u003e\n\n\u003cp\u003eProduced in accordance with recognised international standards, including DIN 7983 and equivalent specifications, these stainless steel fasteners ensure compatibility, dimensional accuracy, and easy integration into professional projects. Their combination of durability, ease of installation, and superior corrosion resistance makes them a trusted choice for both new builds and maintenance work.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePremium A4 316 stainless steel for exceptional corrosion and rust resistance\u003c\/li\u003e\n  \u003cli\u003eSelf-tapping design for fast, secure installation without pre-threading\u003c\/li\u003e\n  \u003cli\u003eCountersunk head for a neat, flush finish in timber, metal, and composites\u003c\/li\u003e\n  \u003cli\u003eHigh tensile strength and stability for demanding structural applications\u003c\/li\u003e\n  \u003cli\u003eManufactured to stringent international standards for quality and consistency\u003c\/li\u003e\n  \u003cli\u003eIdeal for marine, industrial, construction, and outdoor use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eChoose these A4 stainless steel self-tapping countersunk fasteners when you need a robust, long-lasting fixing solution that maintains its integrity and appearance even in harsh, corrosive environments.\u003c\/p\u003e","brand":"Duchy Fasteners","offers":[{"title":"No. 6 \/ 3\/4\"","offer_id":52756508148030,"sku":"A4RRST350020","price":0.04,"currency_code":"GBP","in_stock":true},{"title":"No. 6 \/ 1\"","offer_id":52756508115262,"sku":"A4RRST350025","price":0.07,"currency_code":"GBP","in_stock":true},{"title":"No. 6 \/ 1 1\/2\"","offer_id":52756508180798,"sku":"A4RRST350040","price":0.16,"currency_code":"GBP","in_stock":true},{"title":"No. 8 \/ 5\/8\"","offer_id":52756508082494,"sku":"A4RRST400016","price":0.05,"currency_code":"GBP","in_stock":true},{"title":"No. 8 \/ 3\/4\"","offer_id":52756508049726,"sku":"A4RRST400020","price":0.11,"currency_code":"GBP","in_stock":true},{"title":"No. 8 \/ 1\"","offer_id":52756508016958,"sku":"A4RRST400025","price":0.13,"currency_code":"GBP","in_stock":true},{"title":"No. 8 \/ 1 1\/4\"","offer_id":52756507984190,"sku":"A4RRST400030","price":0.18,"currency_code":"GBP","in_stock":true},{"title":"No. 10 \/ 3\/4\"","offer_id":52756507951422,"sku":"A4RRST500020","price":0.1,"currency_code":"GBP","in_stock":true},{"title":"No. 10 \/ 1\"","offer_id":52756507918654,"sku":"A4RRST500025","price":0.1,"currency_code":"GBP","in_stock":true},{"title":"No. 10 \/ 1 1\/4\"","offer_id":52756507885886,"sku":"A4RRST500030","price":0.1,"currency_code":"GBP","in_stock":true},{"title":"No. 14 \/ 1 1\/4\"","offer_id":52756507853118,"sku":"A4RRST600030","price":0.27,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0861\/3183\/5198\/files\/Self-tappozrsdcsk_png_0147cc69-2ea8-4bd5-975b-16541a1c4181.png?v=1766051376"},{"product_id":"slotted-countersunk-wood-screws-stainless-steel-a4","title":"SLOTTED COUNTERSUNK WOOD SCREWS STAINLESS STEEL A4","description":"\u003cp\u003eThese A4 DIN 97 slotted countersunk woodscrews are manufactured from high-quality 316 stainless steel, providing superior corrosion resistance and long-term durability. Designed as self-tapping screws, they cut their own thread into timber and other suitable materials, delivering a secure, reliable fastening without the need for pre-threading. The A4 marine-grade stainless steel construction makes them ideal for harsh or exposed environments, including marine, coastal, industrial, and outdoor construction settings where resistance to rust, moisture, and chemicals is critical.\u003c\/p\u003e\n\n\u003cp\u003eThe classic slotted drive and countersunk head allow the screw to sit flush with the surface, creating a clean, professional finish that is perfect for joinery, woodworking, decking, cladding, and general construction projects. These woodscrews offer excellent holding power in wood and similar substrates, helping to prevent loosening over time, even under vibration or changing weather conditions.\u003c\/p\u003e\n\n\u003cp\u003eEngineered to meet DIN 97 standards, they deliver consistent quality, accurate threading, and dependable performance across a wide range of applications. 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