{"product_id":"m18-19-5-x-34-5-x-3-4mm-nord-lock-washer-stainless-steel-sp-a4","title":"M18 19.5 x 34.5 x 3.4mm Nord-lock Washer Stainless Steel SP A4 NL18SPSS 2752","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":53327584198922,"sku":"5023596","price":11.77,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/8391\/2714\/files\/fc32cedf3d36a7d5e67cd9c0e8d2a7ae.jpg?v=1783491635","url":"https:\/\/fastenup.co.uk\/products\/m18-19-5-x-34-5-x-3-4mm-nord-lock-washer-stainless-steel-sp-a4","provider":"Fasten Up","version":"1.0","type":"link"}