{"product_id":"lock-nuts-a4","title":"Nyloc Lock Nuts M4–M10 — A4 Marine 316 Stainless DIN 982","description":"\u003ch3\u003eWhy choose these A4 Marine Nyloc Lock Nuts\u003c\/h3\u003e\n\u003cp\u003eOur A4 Marine Nyloc Lock Nuts are precision-formed from A4 (316) marine grade stainless steel to DIN 982 — the European standard for full-height (high-form) nylon insert hex nuts. A4-316 contains added molybdenum that gives substantially better resistance to chloride corrosion than the A2 grade, making it the right choice for boats, marine fittings, swimming pools and any installation exposed to salt water, salt air or de-icing salts. As the bolt thread engages the nut it cuts through the unthreaded nylon collar, generating an interference fit that resists vibration loosening across a wide temperature range.\u003c\/p\u003e\n\u003ch3\u003eSizes available\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eM4 \/ 4mm — brackets, panels and small fittings\u003c\/li\u003e\n\u003cli\u003eM5 \/ 5mm — fittings, signage and trim\u003c\/li\u003e\n\u003cli\u003eM6 \/ 6mm — handrails, fencing and deck hardware\u003c\/li\u003e\n\u003cli\u003eM8 \/ 8mm — deck cleats, stanchions, trailer and machinery fixings\u003c\/li\u003e\n\u003cli\u003eM10 \/ 10mm — structural marine fixings and heavy-duty installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePack options\u003c\/h3\u003e\n\u003cp\u003eEach size is available as a single unit sample, or in a pack of 10. Use the variation selectors above to choose the exact combination you need.\u003c\/p\u003e\n\u003ch3\u003eTypical uses\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBoatbuilding, deck fittings, stanchions, cleats and bow-rail joints\u003c\/li\u003e\n\u003cli\u003eBoat trailers, jetties, pontoons and outdoor pool\/spa equipment\u003c\/li\u003e\n\u003cli\u003eCoastal gates, fencing and architectural metalwork where chloride exposure is constant\u003c\/li\u003e\n\u003cli\u003eVehicles, trailers and machinery that are washed regularly or work in salty conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to fit\u003c\/h3\u003e\n\u003cp\u003ePlace the nut onto a standard metric bolt or stud with the plain hex face against the work surface and the nylon collar facing away from the joint. Tighten with a hex spanner or socket — the bolt thread will cut into the nylon insert as it engages, producing the locking action. Use a clean, undamaged bolt thread for best results, and replace the nut rather than re-using if the locking action feels weak.\u003c\/p\u003e\n\u003ch3\u003eDelivery\u003c\/h3\u003e\n\u003cp\u003eSame-day dispatch on orders placed before 2pm, Monday to Friday. Free UK delivery on orders over £20. Tracked options available at checkout.\u003c\/p\u003e","brand":"Universal Hardware","offers":[{"title":"M4 \/ 1","offer_id":54689032864081,"sku":"FAS-NYLOC-A4-M4-1","price":2.95,"currency_code":"GBP","in_stock":true},{"title":"M4 \/ 10","offer_id":54689032896849,"sku":"FAS-NYLOC-A4-M4-10","price":4.95,"currency_code":"GBP","in_stock":true},{"title":"M5 \/ 1","offer_id":54689032929617,"sku":"FAS-NYLOC-A4-M5-1","price":2.95,"currency_code":"GBP","in_stock":true},{"title":"M5 \/ 10","offer_id":54689032962385,"sku":"FAS-NYLOC-A4-M5-10","price":5.95,"currency_code":"GBP","in_stock":true},{"title":"M6 \/ 1","offer_id":54689032995153,"sku":"FAS-NYLOC-A4-M6-1","price":2.95,"currency_code":"GBP","in_stock":true},{"title":"M6 \/ 10","offer_id":54689033027921,"sku":"FAS-NYLOC-A4-M6-10","price":5.95,"currency_code":"GBP","in_stock":true},{"title":"M8 \/ 1","offer_id":54689033060689,"sku":"FAS-NYLOC-A4-M8-1","price":2.95,"currency_code":"GBP","in_stock":true},{"title":"M8 \/ 10","offer_id":54689033093457,"sku":"FAS-NYLOC-A4-M8-10","price":5.95,"currency_code":"GBP","in_stock":true},{"title":"M10 \/ 1","offer_id":54689033126225,"sku":"FAS-NYLOC-A4-M10-1","price":3.95,"currency_code":"GBP","in_stock":true},{"title":"M10 \/ 10","offer_id":54689033158993,"sku":"FAS-NYLOC-A4-M10-10","price":6.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1073\/9381\/0769\/files\/Self-Locking-nuts-stainless-steel-nylock-nylon-nut-scaled.jpg?v=1787675098","url":"https:\/\/www.universal-hardware.co.uk\/products\/lock-nuts-a4","provider":"Universal Hardware","version":"1.0","type":"link"}