{"title":"Imperial Stainless Steel","description":"\u003cp\u003eImperial Stainless Steel from Duchy Fasteners offers a comprehensive range of high-quality fasteners and fixings, designed to meet the rigorous demands of trade, construction, engineering, and DIY enthusiasts across the UK. Our selection ensures you can find the perfect solution for any project, providing reliable performance and durability. We focus on delivering products that are not only effective but also easy to use, making your work more efficient. Explore our extensive inventory to buy online UK with confidence, knowing you're getting top-tier materials for every application. Duchy Fasteners is committed to providing exceptional products with free delivery on eligible orders.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSTAINLESS STEEL UNF NYLON INSERT LOCK NUTS BS 1768 A2\u003c\/li\u003e\n\u003cli\u003e5\/16 UNC NYLOC NUT 316 STAINLESS STEEL X2 A4\u003c\/li\u003e\n\u003cli\u003eSTAINLESS STEEL RECTANGULAR SECTION SPRING WASHERS A2\u003c\/li\u003e\n\u003c\/ul\u003e","products":[{"product_id":"a2-10-32-unf-x-1-2-hx-set-bs1768-304-s-s","title":"10-32 UNF X 1\/2\" HEX SETSCREW BS1768 304 STAINLESS STEEL A2","description":"\u003cp\u003eA2 10-32 UNF X 1\/2\" HX SET BS1768  304 S\/S is a high-quality stainless steel fastener, providing secure and long-lasting performance. Manufactured to ASME, ANSI, or BS standards, it ensures precision threading and durability. Made from A2 304 stainless steel, it offers excellent resistance to corrosion and extreme conditions. Ideal for industrial, marine, and construction applications, ensuring optimal fastening strength.\u003c\/p\u003e","brand":"Duchy Fasteners","offers":[{"title":"Default Title","offer_id":50329615368510,"sku":"2HSF100050","price":0.29,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0861\/3183\/5198\/files\/Set-ss_png_12459613-3d26-4fef-8950-a61bb11f89ba.png?v=1753896260"},{"product_id":"a2-5-40-unc-x-3-8-socket-setscrew","title":"5-40 UNC X 3\/8\" SOCKET SETSCREW A2","description":"\u003cp\u003eA2 5-40 UNC X 3\/8\" SOCKET SETSCREW is a high-quality stainless steel component, designed for durability and secure fastening. Manufactured to ASME, BS, or ANSI standards, it ensures precise threading and excellent load-bearing capacity. Made from A2 304 or A4 316 stainless steel, it offers superior corrosion resistance for marine, construction, and industrial applications. With a strong, robust design, it provides long-lasting performance in demanding environments.\u003c\/p\u003e","brand":"Duchy Fasteners","offers":[{"title":"Default Title","offer_id":50329669206334,"sku":"2SSC050037","price":0.27,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0861\/3183\/5198\/files\/socset-cup_png_2e6d9060-d4fc-4454-9326-c50cc70073c5.png?v=1780405682"},{"product_id":"a2-1-2-washer-s-coil-sq-304-ss-bs1812","title":"1\/2\" WASHER SPRING COIL SQUARE 304 SS BS1812 A2","description":"\u003cp\u003eA2 1\/2\" WASHER S\/COIL SQ 304 SS BS1812 is a high-quality stainless steel component, designed for durability and secure fastening. Manufactured to ASME, BS, or ANSI standards, it ensures precise threading and excellent load-bearing capacity. Made from A2 304 or A4 316 stainless steel, it offers superior corrosion resistance for marine, construction, and industrial applications. With a strong, robust design, it provides long-lasting performance in demanding environments.\u003c\/p\u003e","brand":"Duchy Fasteners","offers":[{"title":"Default Title","offer_id":50329699385662,"sku":"2WSCS0050","price":0.07,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0861\/3183\/5198\/files\/washer-rect_png_7f45ef99-4645-4201-925a-fe945415cdf7.png?v=1780405687"},{"product_id":"a4-5-8-11-unc-x-2-1-4-hex-bolt-asme-b18-2-1-316-st-st","title":"5\/8-11 UNC X 2.1 - \/4\" HEX BOLT ASME B18.2.1 316 STAINLESS STEEL A4","description":"\u003cp\u003eA4 5\/8-11 UNC X 2.1\/4\" HEX BOLT ASME B18.2.1  316 ST\/ST is a premium stainless steel fastener, designed for durability and strength. Manufactured to industry standards, it ensures precision and secure fastening. Made from A4 316 stainless steel, it provides excellent corrosion resistance for harsh environments. Whether used in construction, marine engineering, or industrial settings, it guarantees long-term performance. The robust design allows for stable installation and secure tightening.\u003c\/p\u003e","brand":"Duchy Fasteners","offers":[{"title":"Default Title","offer_id":50329704464702,"sku":"4HBC00620225","price":8.82,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0861\/3183\/5198\/files\/bolt-ss_png_1bbfc3e8-5285-4a37-922b-a3dbb8dd914b.png?v=1753896126"},{"product_id":"a4-washer-rectangular-spring-1-2","title":"WASHER RECTANGULAR SPRING 1\/2\" A4","description":"\u003cp\u003eA4 WASHER RECTANGULAR SPRING 1\/2\" is a premium stainless steel fastener, designed for durability and precision applications. Manufactured to high industry standards, it ensures reliability and long-term performance. Made from A2 or A4 stainless steel, it offers excellent corrosion resistance for tough environments. Whether used for construction, marine applications, or general engineering, this fastener provides secure and stable fastening. With precision threading and high-strength design, it delivers outstanding performance in demanding conditions.\u003c\/p\u003e","brand":"Duchy Fasteners","offers":[{"title":"Default Title","offer_id":50329714295102,"sku":"4WSCR0050","price":0.29,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0861\/3183\/5198\/files\/washer-rect_png_cb2b79ed-b674-421f-a8b8-4562b5d47fcc.png?v=1753896058"},{"product_id":"a2-stainless-steel-bsw-full-nuts-bs-1083","title":"STAINLESS STEEL BSW FULL NUTS BS 1083 A2","description":"\u003cp\u003eThis premium range of full nuts is engineered from high‑quality 304 stainless steel to deliver outstanding strength, reliability, and long‑term performance. Designed for use with imperial BSW threaded components, each nut offers precise, consistent threading for secure assembly in demanding environments.\u003c\/p\u003e\n\n\u003cp\u003eManufactured in accordance with recognised ASME, ANSI, and BS standards, these stainless steel nuts provide excellent resistance to corrosion, making them suitable for both indoor and outdoor use. Whether exposed to moisture, chemicals, or harsh weather conditions, they help maintain joint integrity and reduce the need for maintenance or replacement over time.\u003c\/p\u003e\n\n\u003cp\u003eIdeal for construction, industrial, marine, and general engineering applications, this versatile selection allows you to choose the right nut to match your specific imperial thread requirements. Their robust construction and clean finish make them a dependable choice for structural connections, machinery, equipment installation, and repair work where safety and durability are critical.\u003c\/p\u003e\n\n\u003cp\u003eChoose these 304 stainless steel full nuts when you need a dependable, corrosion‑resistant fixing that meets strict dimensional and quality standards, ensuring exceptional performance across a wide range of professional and DIY projects.\u003c\/p\u003e","brand":"Duchy Fasteners","offers":[{"title":"3\/16\" BSW","offer_id":52759020601662,"sku":"2FNW0018","price":0.1,"currency_code":"GBP","in_stock":true},{"title":"3\/8\" BSW","offer_id":52759020568894,"sku":"2FNW0037","price":0.45,"currency_code":"GBP","in_stock":true},{"title":"1\/2\" BSW","offer_id":52759020536126,"sku":"2FNW0050","price":1.16,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0861\/3183\/5198\/files\/Nut-ss_png_8d78f015-9a75-40b0-8112-3d6fe75c2691.png?v=1766075739"},{"product_id":"a2-stainless-steel-unf-nylon-insert-lock-nuts-bs-1768","title":"STAINLESS STEEL UNF NYLON INSERT LOCK NUTS BS 1768 A2","description":"\u003cp\u003eThese A2 nylon insert nuts are high-quality stainless steel fasteners designed to provide secure, vibration-resistant and long-lasting performance in demanding environments. The integrated nylon insert delivers a reliable locking action on UNF imperial threads, reducing the risk of loosening under load, shock or movement.\u003c\/p\u003e\n\n\u003cp\u003eManufactured in accordance with recognised international standards such as ASME, ANSI and BS (including BS1768), these lock nuts offer precise, consistent threading for easy installation and dependable clamping force. The accurate thread profile ensures excellent fit and compatibility with matching UNF bolts and studs across a wide range of applications.\u003c\/p\u003e\n\n\u003cp\u003eProduced from A2 (304) stainless steel, these nylon insert nuts offer excellent resistance to corrosion, moisture and many industrial contaminants. This makes them particularly suitable for use in harsh or exposed environments, including marine, construction, engineering, automotive, and general industrial projects where reliability and longevity are critical.\u003c\/p\u003e\n\n\u003cp\u003eIdeal for both new assemblies and maintenance work, these stainless steel nylon insert lock nuts provide strong, secure fastening performance while helping to prevent unintentional loosening over time. 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Manufactured from high-quality A2 304 stainless steel, they offer outstanding strength, durability, and corrosion resistance, making them an excellent choice for use in construction, industrial, engineering, and marine applications where long-term reliability is essential.\u003c\/p\u003e\n\n\u003cp\u003eProduced to recognised international standards, including ASME, ANSI, DIN, and BS specifications, these nuts feature accurately machined UNC threads for secure, precise fastening and consistent assembly. The robust stainless steel construction ensures excellent resistance to rust and chemical exposure, even in harsh outdoor or marine conditions, helping to maintain joint integrity and minimise maintenance over time.\u003c\/p\u003e\n\n\u003cp\u003eSuitable for use with matching UNC bolts, screws, and threaded rod, these full nuts and hex nuts provide a strong, vibration-resistant fixing solution across a wide range of mechanical and structural applications. Whether used in fabrication, repair, machinery, or general fastening tasks, they deliver dependable performance, ease of installation, and a professional finish.\u003c\/p\u003e\n\n\u003cp\u003eKey features include:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eManufactured from A2 304 stainless steel for superior corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eUNC threaded full nut and hex nut options for secure, precise fastening\u003c\/li\u003e\n  \u003cli\u003eProduced to ASME, ANSI, DIN, and BS standards for quality and consistency\u003c\/li\u003e\n  \u003cli\u003eIdeal for construction, industrial, engineering, and marine environments\u003c\/li\u003e\n  \u003cli\u003eReliable performance in both indoor and outdoor applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eChoose these A2 UNC stainless steel nuts when you need a strong, long-lasting fastening solution that meets stringent quality standards and performs reliably in challenging conditions.\u003c\/p\u003e","brand":"Duchy Fasteners","offers":[{"title":"1\/4\"UNC","offer_id":52759026303294,"sku":"2FNC0025","price":3.76,"currency_code":"GBP","in_stock":true},{"title":"5\/16\"UNC","offer_id":52759026270526,"sku":"2FNC0031","price":3.8,"currency_code":"GBP","in_stock":true},{"title":"3\/8\" UNC","offer_id":52759026237758,"sku":"2FNC0037","price":3.83,"currency_code":"GBP","in_stock":true},{"title":"7\/16\"UNC","offer_id":52759026204990,"sku":"2FNC0043","price":4.07,"currency_code":"GBP","in_stock":true},{"title":"1\/2\"UNC","offer_id":52759026172222,"sku":"2FNC0050","price":4.31,"currency_code":"GBP","in_stock":true},{"title":"9\/16-12 UNC","offer_id":52759026139454,"sku":"2FNC0056","price":2.52,"currency_code":"GBP","in_stock":true},{"title":"5\/8\"UNC","offer_id":52759026106686,"sku":"2FNC0062","price":1.34,"currency_code":"GBP","in_stock":true},{"title":"3\/4\"UNC","offer_id":52759026073918,"sku":"2FNC0075","price":2.37,"currency_code":"GBP","in_stock":true},{"title":"1\"UNC","offer_id":52759026041150,"sku":"2FNC0100","price":6.12,"currency_code":"GBP","in_stock":true},{"title":"1 1\/8\"UNC","offer_id":52759026008382,"sku":"2FNC0112","price":13.48,"currency_code":"GBP","in_stock":true},{"title":"4.40 UNC","offer_id":52759025975614,"sku":"2FNC04","price":4.86,"currency_code":"GBP","in_stock":true},{"title":"6.32 UNC","offer_id":52759025942846,"sku":"2FNC06","price":4.74,"currency_code":"GBP","in_stock":true},{"title":"8.32 UNC","offer_id":52759025910078,"sku":"2FNC08","price":3.67,"currency_code":"GBP","in_stock":true},{"title":"10.24 UNC","offer_id":52759025877310,"sku":"2FNC10","price":3.67,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0861\/3183\/5198\/files\/Nut-ss_png_ab8403cb-3aed-4774-a486-808f19c69ae4.png?v=1766076430"},{"product_id":"a2-stainless-steel-unc-nylon-insert-lock-nuts-bs-1768","title":"STAINLESS STEEL UNC NYLON INSERT LOCK NUTS BS 1768 A2","description":"\u003cp\u003eThese A2 stainless steel nylon insert lock nuts are high-quality fasteners designed to provide secure, vibration-resistant and long-lasting performance in demanding environments. 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The combination of stainless steel construction and nylon insert technology provides optimal fastening strength, security and longevity across a wide range of uses.\u003c\/p\u003e\n\n\u003cp\u003eEasy to install with standard tools, these stainless steel nylon insert nuts are an excellent choice for both new assemblies and replacements, helping to maintain joint integrity and reduce the risk of loosening due to shock, vibration or thermal movement. 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Manufactured to recognised ASME, ANSI, or BS standards, they offer precise, consistent threading for secure assembly and dependable tightening in a wide range of applications.\u003c\/p\u003e\n\n\u003cp\u003eMade from A2 304 stainless steel, these nuts provide excellent corrosion resistance, making them ideal for use in construction, industrial, automotive, and marine environments where exposure to moisture, chemicals, or harsh weather is common. Their robust hex design allows for easy installation and removal with standard tools, while maintaining a strong, vibration-resistant hold when paired with matching UNF bolts or threaded rods.\u003c\/p\u003e\n\n\u003cp\u003ePerfect for both professional and DIY use, these stainless steel full nuts are suitable for structural connections, machinery, fabrications, and general engineering tasks where reliability and safety are critical. Whether you are assembling new equipment or carrying out maintenance, they offer a clean, professional finish and consistent, high-quality performance.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003ePremium A2 304 stainless steel for strength and corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eManufactured to ASME, ANSI, or BS standards for accurate UNF threading\u003c\/li\u003e\n  \u003cli\u003eFull hex design for secure grip and easy tightening\u003c\/li\u003e\n  \u003cli\u003eSuitable for construction, industrial, automotive, and marine applications\u003c\/li\u003e\n  \u003cli\u003eIdeal for use with UNF stainless steel bolts, set screws, and threaded rod\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Duchy Fasteners","offers":[{"title":"1\/4\"","offer_id":52759032824126,"sku":"2FNF0025","price":0.18,"currency_code":"GBP","in_stock":true},{"title":"5\/16-24","offer_id":52759032791358,"sku":"2FNF0031","price":0.24,"currency_code":"GBP","in_stock":true},{"title":"3\/8\"","offer_id":52759032758590,"sku":"2FNF0037","price":0.3,"currency_code":"GBP","in_stock":true},{"title":"7\/16\"","offer_id":52759032725822,"sku":"2FNF0043","price":0.81,"currency_code":"GBP","in_stock":true},{"title":"1\/2\"","offer_id":52759032693054,"sku":"2FNF0050","price":0.82,"currency_code":"GBP","in_stock":true},{"title":"5\/8-18","offer_id":52759032660286,"sku":"2FNF0062","price":0.41,"currency_code":"GBP","in_stock":true},{"title":"10-32","offer_id":52759032627518,"sku":"2FNF10","price":0.1,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0861\/3183\/5198\/files\/Nut-ss_png_d20978c4-d6db-42d2-86f6-6b67dcbb8801.png?v=1766076783"},{"product_id":"a2-stainless-steel-unf-half-lock-nuts-bs-1768-bs-1981","title":"STAINLESS STEEL UNF HALF LOCK NUTS BS 1768 \/ BS 1981 A2","description":"\u003cp\u003eThis A2 stainless steel hex lock nut range is engineered for secure, long-lasting fastening in demanding environments. 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