{"product_id":"200pc-assorted-box-of-springs-extension-compression","title":"200pc Assorted Springs Box - Extension \u0026 Compression, Spring Steel","description":"\u003cp\u003e\u003cstrong\u003e200pc Assorted Box of Springs\u003c\/strong\u003e - 200 small springs in spring steel across twenty sizes, covering both extension and compression types from 4mm up to 9.5mm diameter.\u003c\/p\u003e\n\n\u003cp\u003eTwo kinds of spring do two opposite jobs. A compression spring is an open coil that pushes apart - it goes under a plunger, a catch or a lever to hold something out. An extension spring has a hook at each end and pulls together, returning a lever or a linkage to where it started. Between them they cover most of what goes wrong on small mechanisms, and having a boxful to hand means a seized catch or a snapped return spring is a ten minute job rather than a wait for a part that may no longer be listed.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBox contents (200 pieces total)\u003c\/strong\u003e\u003cbr\u003eSizes given as outside diameter x free length in mm\u003cbr\u003e\u003cbr\u003e12 x 4 x 79.5\u003cbr\u003e8 x 4.5 x 44.5\u003cbr\u003e10 x 5 x 20.5\u003cbr\u003e10 x 5.5 x 17\u003cbr\u003e10 x 5.5 x 25.5\u003cbr\u003e10 x 5.5 x 38\u003cbr\u003e10 x 6.5 x 10\u003cbr\u003e10 x 6.5 x 22\u003cbr\u003e10 x 7 x 12.5\u003cbr\u003e10 x 7 x 19\u003cbr\u003e10 x 7 x 38\u003cbr\u003e12 x 7 x 51\u003cbr\u003e8 x 8 x 28.5\u003cbr\u003e10 x 8 x 31.5\u003cbr\u003e12 x 8 x 44.5\u003cbr\u003e12 x 8.5 x 19\u003cbr\u003e10 x 8.5 x 36.5\u003cbr\u003e12 x 8.5 x 47\u003cbr\u003e8 x 9 x 35\u003cbr\u003e6 x 9.5 x 16\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003cbr\u003eExtension springs (hooked both ends) and compression springs (open coil)\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSizes\u003c\/strong\u003e\u003cbr\u003eTwenty sizes, 4mm to 9.5mm outside diameter, 10mm to 79.5mm free length\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003cbr\u003eSpring steel\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePlease note\u003c\/strong\u003e\u003cbr\u003eAn assortment box is for general repair and non critical mechanisms. Where a spring has a specified rate, free length and fitted length - brake shoe return springs and throttle return springs in particular - fit the correct part for the application rather than a substitute from an assortment, because a return spring that is too weak or too short will not do its job and on those two systems that matters.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSuitable for\u003c\/strong\u003e\u003cbr\u003eLatches, catches and door mechanisms, small linkages and levers, tools and equipment repair, garden and workshop machinery, models, prototypes and general fabrication, restoration and general maintenance\u003c\/p\u003e\n\n\u003cp\u003eAlso known as assorted springs, small springs, extension springs, expansion springs, tension springs, compression springs, or a spring assortment box.\u003c\/p\u003e","brand":"DH \u0026 JS Trading Ltd","offers":[{"title":"Default Title","offer_id":56777264693626,"sku":"AT170","price":11.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/2239\/6850\/files\/AT170.jpg?v=1775636004","url":"https:\/\/www.dhjstrading.com\/products\/200pc-assorted-box-of-springs-extension-compression","provider":"DH \u0026 JS Trading Ltd","version":"1.0","type":"link"}