{"product_id":"m12-13-0-x-25-4-x-3-4mm-nord-lock-washer-stainless-steel-sp-a4","title":"M12 13.0 x 25.4 x 3.4mm Nord-lock Washer Stainless Steel SP A4 NL12SPSS","description":"\u003cp\u003eStainless steel. SP (enlarged outer diameter) Tension makes the bolt self-locking Nord-Lock wedge-locking technology secures bolted joints with tension instead of friction. The system comprises of a pair of washers that has cams on one side and radial teeth on the opposite side. Nord-Lock wedge-locking products positively lock the fastener in a joint which is subjected to extreme vibration or dynamic loads. The key is the difference in angles. Since the cam angle \" α \" is larger than the thread pitch \" β \", the pair of washers expand more than the corresponding pitch of the thread.\u003c\/p\u003e","brand":"Nord-Lock","offers":[{"title":"Default Title","offer_id":53328278454538,"sku":"5023566","price":5.73,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/8391\/2714\/files\/1315e3d2791a79392d8707e5e2179af3.jpg?v=1783507648","url":"https:\/\/fastenup.co.uk\/products\/m12-13-0-x-25-4-x-3-4mm-nord-lock-washer-stainless-steel-sp-a4","provider":"Fasten Up","version":"1.0","type":"link"}