{"title":"Extension Springs","description":"\u003cp\u003eExtension springs manufactured are designed to resist tensile loads, available with English hooks across a wide range of dimensions and spring rates. Materials include steel and stainless steel. All springs are listed with full technical specifications including free length, maximum extension length, spring rate and initial tension. Use the filters or ask Springy to find the right spring, or contact us for bespoke requirements.\u003c\/p\u003e","products":[{"product_id":"axs-es-10001","title":"Extension Spring | Do 2.5mm | d 0.5mm | L0 7.9mm | Spring Steel","description":"\u003cp\u003eExtension spring manufactured to DIN EN 15800. Outer diameter 2.5 mm, wire diameter 0.5 mm, free length 7.9 mm. Spring rate 7.98 N\/mm. Initial tension 2.45 N. Material: Spring Steel (EN 10270-1-SH). Hook type: English hook.\u003c\/p\u003e","brand":"AxiSpring","offers":[{"title":"Default Title","offer_id":56754460131652,"sku":"AXS-ES-10001","price":43.12,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/7451\/3220\/files\/Extension_spring_steel_illustrative_e708ab78-6f59-48f1-855e-e54d5a61f08e.png?v=1779175980"},{"product_id":"axs-es-10002","title":"Extension Spring | Do 2.5mm | d 0.5mm | L0 10.9mm | Spring Steel","description":"\u003cp\u003eExtension spring manufactured to DIN EN 15800. Outer diameter 2.5 mm, wire diameter 0.5 mm, free length 10.9 mm. Spring rate 4.98 N\/mm. Initial tension 2.45 N. Material: Spring Steel (EN 10270-1-SH). Hook type: English hook.\u003c\/p\u003e","brand":"AxiSpring","offers":[{"title":"Default Title","offer_id":56754460164420,"sku":"AXS-ES-10002","price":43.12,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/7451\/3220\/files\/Extension_spring_steel_illustrative_41bce871-f20f-4d1b-95fb-53434f06251e.png?v=1779175987"},{"product_id":"axs-es-10003","title":"Extension Spring | Do 2.5mm | d 0.5mm | L0 15.4mm | Spring Steel","description":"\u003cp\u003eExtension spring manufactured to DIN EN 15800. Outer diameter 2.5 mm, wire diameter 0.5 mm, free length 15.4 mm. Spring rate 3.19 N\/mm. Initial tension 2.45 N. Material: Spring Steel (EN 10270-1-SH). Hook type: English hook.\u003c\/p\u003e","brand":"AxiSpring","offers":[{"title":"Default Title","offer_id":56754460262724,"sku":"AXS-ES-10003","price":43.12,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/7451\/3220\/files\/Extension_spring_steel_illustrative_6d8d6799-ef3e-41f5-a4b9-2c7345d19873.png?v=1779175993"},{"product_id":"axs-es-10004","title":"Extension Spring | Do 3.5mm | d 0.5mm | L0 9.5mm | Spring Steel","description":"\u003cp\u003eExtension spring manufactured to DIN EN 15800. Outer diameter 3.5 mm, wire diameter 0.5 mm, free length 9.5 mm. Spring rate 2.35 N\/mm. Initial tension 1.77 N. Material: Spring Steel (EN 10270-1-SH). Hook type: English hook.\u003c\/p\u003e","brand":"AxiSpring","offers":[{"title":"Default Title","offer_id":56754460426564,"sku":"AXS-ES-10004","price":43.12,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/7451\/3220\/files\/Extension_spring_steel_illustrative_a860aa5d-f29e-4dac-9839-32e0c3bcef0e.png?v=1779176002"},{"product_id":"axs-es-10005","title":"Extension Spring | Do 3.5mm | d 0.5mm | L0 12.5mm | Spring Steel","description":"\u003cp\u003eExtension spring manufactured to DIN EN 15800. Outer diameter 3.5 mm, wire diameter 0.5 mm, free length 12.5 mm. Spring rate 1.47 N\/mm. Initial tension 1.77 N. Material: Spring Steel (EN 10270-1-SH). Hook type: English hook.\u003c\/p\u003e","brand":"AxiSpring","offers":[{"title":"Default Title","offer_id":56754461081924,"sku":"AXS-ES-10005","price":43.12,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/7451\/3220\/files\/Extension_spring_steel_illustrative_5d786ad0-26d7-4d2b-94be-e161f10adc09.png?v=1779176010"},{"product_id":"axs-es-20001","title":"Extension Spring | Do 2.5mm | d 0.5mm | L0 7.9mm | Stainless Steel","description":"\u003cp\u003eExtension spring manufactured to DIN EN 15800. Outer diameter 2.5 mm, wire diameter 0.5 mm, free length 7.9 mm. Spring rate 6.65 N\/mm. Initial tension 2.05 N. Material: Stainless Steel (EN 10270-3). Hook type: English hook.\u003c\/p\u003e","brand":"AxiSpring","offers":[{"title":"Default Title","offer_id":56754461114692,"sku":"AXS-ES-20001","price":60.55,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/7451\/3220\/files\/Extension_spring_stainless_steel_illustrative_50bb8e26-351e-48a1-b8fe-47eba5da9ca5.png?v=1779186097"},{"product_id":"axs-es-20002","title":"Extension Spring | Do 2.5mm | d 0.5mm | L0 10.9mm | Stainless Steel","description":"\u003cp\u003eExtension spring manufactured to DIN EN 15800. Outer diameter 2.5 mm, wire diameter 0.5 mm, free length 10.9 mm. Spring rate 4.15 N\/mm. Initial tension 2.05 N. Material: Stainless Steel (EN 10270-3). Hook type: English hook.\u003c\/p\u003e","brand":"AxiSpring","offers":[{"title":"Default Title","offer_id":56754461245764,"sku":"AXS-ES-20002","price":60.55,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/7451\/3220\/files\/Extension_spring_stainless_steel_illustrative_14c675c9-6e90-4784-af55-8285c4cc17de.png?v=1779186103"},{"product_id":"axs-es-20003","title":"Extension Spring | Do 2.5mm | d 0.5mm | L0 15.4mm | Stainless Steel","description":"\u003cp\u003eExtension spring manufactured to DIN EN 15800. Outer diameter 2.5 mm, wire diameter 0.5 mm, free length 15.4 mm. Spring rate 2.66 N\/mm. Initial tension 2.05 N. Material: Stainless Steel (EN 10270-3). Hook type: English hook.\u003c\/p\u003e","brand":"AxiSpring","offers":[{"title":"Default Title","offer_id":56754461278532,"sku":"AXS-ES-20003","price":60.55,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/7451\/3220\/files\/Extension_spring_stainless_steel_illustrative_12e630ee-7807-4030-85aa-e8eb9082a185.png?v=1779186110"},{"product_id":"axs-es-20004","title":"Extension Spring | Do 3.5mm | d 0.5mm | L0 9.5mm | Stainless Steel","description":"\u003cp\u003eExtension spring manufactured to DIN EN 15800. Outer diameter 3.5 mm, wire diameter 0.5 mm, free length 9.5 mm. Spring rate 1.96 N\/mm. Initial tension 1.47 N. Material: Stainless Steel (EN 10270-3). Hook type: English hook.\u003c\/p\u003e","brand":"AxiSpring","offers":[{"title":"Default Title","offer_id":56754461311300,"sku":"AXS-ES-20004","price":60.55,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/7451\/3220\/files\/Extension_spring_stainless_steel_illustrative_2980b2ef-f55d-4298-819a-661e75c81613.png?v=1779186116"},{"product_id":"axs-es-20005","title":"Extension Spring | Do 3.5mm | d 0.5mm | L0 12.5mm | Stainless Steel","description":"\u003cp\u003eExtension spring manufactured to DIN EN 15800. Outer diameter 3.5 mm, wire diameter 0.5 mm, free length 12.5 mm. Spring rate 1.22 N\/mm. Initial tension 1.47 N. Material: Stainless Steel (EN 10270-3). Hook type: English hook.\u003c\/p\u003e","brand":"AxiSpring","offers":[{"title":"Default Title","offer_id":56754461344068,"sku":"AXS-ES-20005","price":60.55,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/7451\/3220\/files\/Extension_spring_stainless_steel_illustrative_4c243bb0-7298-4bec-bc11-6b0f56f7b8c4.png?v=1779186123"},{"product_id":"axs-es-10006","title":"Extension Spring | Do 3.5mm | d 0.5mm | L0 17mm | Spring Steel","description":"\u003cp\u003eExtension spring manufactured to DIN EN 15800. Outer diameter 3.5 mm, wire diameter 0.5 mm, free length 17 mm. Spring rate 0.94 N\/mm. Initial tension 1.77 N. Material: Spring Steel (EN 10270-1-SH). Hook type: English hook.\u003c\/p\u003e","brand":"AxiSpring","offers":[{"title":"Default Title","offer_id":56768142311748,"sku":"AXS-ES-10006","price":43.12,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/7451\/3220\/files\/Extension_spring_steel_illustrative_6ee03e0d-fd5a-4a55-8b12-82f7759b3749.png?v=1779176018"},{"product_id":"axs-es-10007","title":"Extension Spring | Do 3.5mm | d 0.5mm | L0 24.5mm | Spring Steel","description":"\u003cp\u003eExtension spring manufactured to DIN EN 15800. Outer diameter 3.5 mm, wire diameter 0.5 mm, free length 24.5 mm. Spring rate 0.59 N\/mm. Initial tension 1.77 N. Material: Spring Steel (EN 10270-1-SH). Hook type: English hook.\u003c\/p\u003e","brand":"AxiSpring","offers":[{"title":"Default Title","offer_id":56768142344516,"sku":"AXS-ES-10007","price":43.12,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/7451\/3220\/files\/Extension_spring_steel_illustrative_5b2651df-ea74-4a9a-8e1b-d2f264e9def8.png?v=1779176026"},{"product_id":"axs-es-10008","title":"Extension Spring | Do 3.5mm | d 0.5mm | L0 290mm | Spring Steel","description":"\u003cp\u003eExtension spring manufactured to DIN EN 15800. Outer diameter 3.5 mm, wire diameter 0.5 mm, free length 290 mm. Spring rate 0.05 N\/mm. Initial tension 1.77 N. Material: Spring Steel (EN 10270-1-SH). Hook type: English hook.\u003c\/p\u003e","brand":"AxiSpring","offers":[{"title":"Default Title","offer_id":56768142377284,"sku":"AXS-ES-10008","price":43.12,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/7451\/3220\/files\/Extension_spring_steel_illustrative_18f58d08-f1ea-4037-a8ec-7214a248e548.png?v=1779176036"},{"product_id":"axs-es-10009","title":"Extension Spring | Do 5.5mm | d 0.5mm | L0 12.7mm | Spring Steel","description":"\u003cp\u003eExtension spring manufactured to DIN EN 15800. Outer diameter 5.5 mm, wire diameter 0.5 mm, free length 12.7 mm. Spring rate 0.51 N\/mm. Initial tension 1 N. Material: Spring Steel (EN 10270-1-SH). Hook type: English hook.\u003c\/p\u003e","brand":"AxiSpring","offers":[{"title":"Default Title","offer_id":56768142442820,"sku":"AXS-ES-10009","price":43.12,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/7451\/3220\/files\/Extension_spring_steel_illustrative_6446790e-7679-429d-96fe-1515106f9186.png?v=1779176042"},{"product_id":"axs-es-10010","title":"Extension Spring | Do 5.5mm | d 0.5mm | L0 15.7mm | Spring Steel","description":"\u003cp\u003eExtension spring manufactured to DIN EN 15800. Outer diameter 5.5 mm, wire diameter 0.5 mm, free length 15.7 mm. Spring rate 0.31 N\/mm. Initial tension 1 N. Material: Spring Steel (EN 10270-1-SH). Hook type: English hook.\u003c\/p\u003e","brand":"AxiSpring","offers":[{"title":"Default Title","offer_id":56768142967108,"sku":"AXS-ES-10010","price":43.12,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/7451\/3220\/files\/Extension_spring_steel_illustrative_95d3b9e5-284d-4d49-a2f8-22341790df77.png?v=1779176050"},{"product_id":"axs-es-10011","title":"Extension Spring | Do 5.5mm | d 0.5mm | L0 20.2mm | Spring Steel","description":"\u003cp\u003eExtension spring manufactured to DIN EN 15800. Outer diameter 5.5 mm, wire diameter 0.5 mm, free length 20.2 mm. Spring rate 0.21 N\/mm. Initial tension 1 N. Material: Spring Steel (EN 10270-1-SH). Hook type: English hook.\u003c\/p\u003e","brand":"AxiSpring","offers":[{"title":"Default Title","offer_id":56768143032644,"sku":"AXS-ES-10011","price":43.12,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/7451\/3220\/files\/Extension_spring_steel_illustrative_1bd22bf1-2f6d-4fa0-9b0a-3c299f9d9964.png?v=1779176057"},{"product_id":"axs-es-10012","title":"Extension Spring | Do 5.5mm | d 0.5mm | L0 27.7mm | Spring Steel","description":"\u003cp\u003eExtension spring manufactured to DIN EN 15800. Outer diameter 5.5 mm, wire diameter 0.5 mm, free length 27.7 mm. Spring rate 0.13 N\/mm. Initial tension 1 N. Material: Spring Steel (EN 10270-1-SH). Hook type: English hook.\u003c\/p\u003e","brand":"AxiSpring","offers":[{"title":"Default Title","offer_id":56768143065412,"sku":"AXS-ES-10012","price":43.12,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/7451\/3220\/files\/Extension_spring_steel_illustrative_399ea09a-5bb5-4263-9bff-96cb9aaf1ad6.png?v=1779176065"},{"product_id":"axs-es-10013","title":"Extension Spring | Do 5.5mm | d 0.5mm | L0 37.7mm | Spring Steel","description":"\u003cp\u003eExtension spring manufactured to DIN EN 15800. Outer diameter 5.5 mm, wire diameter 0.5 mm, free length 37.7 mm. Spring rate 0.09 N\/mm. Initial tension 1 N. Material: Spring Steel (EN 10270-1-SH). Hook type: English hook.\u003c\/p\u003e","brand":"AxiSpring","offers":[{"title":"Default Title","offer_id":56768143229252,"sku":"AXS-ES-10013","price":43.12,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/7451\/3220\/files\/Extension_spring_steel_illustrative_e5ac9f61-fe35-4e03-a876-4a42b248b807.png?v=1779176073"},{"product_id":"axs-es-10014","title":"Extension Spring | Do 2.8mm | d 0.55mm | L0 8.8mm | Spring Steel","description":"\u003cp\u003eExtension spring manufactured to DIN EN 15800. Outer diameter 2.8 mm, wire diameter 0.55 mm, free length 8.8 mm. Spring rate 8.18 N\/mm. Initial tension 2.79 N. Material: Spring Steel (EN 10270-1-SH). Hook type: English hook.\u003c\/p\u003e","brand":"AxiSpring","offers":[{"title":"Default Title","offer_id":56768143294788,"sku":"AXS-ES-10014","price":44.87,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/7451\/3220\/files\/Extension_spring_steel_illustrative_760d5bb2-5471-4b83-9216-455ffc22f0f6.png?v=1779176082"},{"product_id":"axs-es-10015","title":"Extension Spring | Do 2.8mm | d 0.55mm | L0 12.1mm | Spring Steel","description":"\u003cp\u003eExtension spring manufactured to DIN EN 15800. Outer diameter 2.8 mm, wire diameter 0.55 mm, free length 12.1 mm. Spring rate 5.11 N\/mm. Initial tension 2.79 N. Material: Spring Steel (EN 10270-1-SH). Hook type: English hook.\u003c\/p\u003e","brand":"AxiSpring","offers":[{"title":"Default Title","offer_id":56768143360324,"sku":"AXS-ES-10015","price":44.87,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/7451\/3220\/files\/Extension_spring_steel_illustrative_cb4ca96e-f14b-45e5-8a1a-f3379dee7299.png?v=1779176090"},{"product_id":"axs-es-10016","title":"Extension Spring | Do 2.8mm | d 0.55mm | L0 17mm | Spring Steel","description":"\u003cp\u003eExtension spring manufactured to DIN EN 15800. Outer diameter 2.8 mm, wire diameter 0.55 mm, free length 17 mm. Spring rate 3.27 N\/mm. Initial tension 2.79 N. Material: Spring Steel (EN 10270-1-SH). Hook type: English hook.\u003c\/p\u003e","brand":"AxiSpring","offers":[{"title":"Default Title","offer_id":56768143393092,"sku":"AXS-ES-10016","price":44.87,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/7451\/3220\/files\/Extension_spring_steel_illustrative_62184de0-2a7b-474f-8902-514f3ee020b2.png?v=1779176097"},{"product_id":"axs-es-10017","title":"Extension Spring | Do 3.5mm | d 0.55mm | L0 9.9mm | Spring Steel","description":"\u003cp\u003eExtension spring manufactured to DIN EN 15800. Outer diameter 3.5 mm, wire diameter 0.55 mm, free length 9.9 mm. Spring rate 3.63 N\/mm. Initial tension 2.38 N. Material: Spring Steel (EN 10270-1-SH). Hook type: English hook.\u003c\/p\u003e","brand":"AxiSpring","offers":[{"title":"Default Title","offer_id":56768143884612,"sku":"AXS-ES-10017","price":44.87,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/7451\/3220\/files\/Extension_spring_steel_illustrative_e6f65d67-92e4-46fe-89c7-8fca87f61246.png?v=1779176106"},{"product_id":"axs-es-10018","title":"Extension Spring | Do 3.5mm | d 0.55mm | L0 13.2mm | Spring Steel","description":"\u003cp\u003eExtension spring manufactured to DIN EN 15800. Outer diameter 3.5 mm, wire diameter 0.55 mm, free length 13.2 mm. Spring rate 2.27 N\/mm. Initial tension 2.38 N. Material: Spring Steel (EN 10270-1-SH). Hook type: English hook.\u003c\/p\u003e","brand":"AxiSpring","offers":[{"title":"Default Title","offer_id":56768143950148,"sku":"AXS-ES-10018","price":44.87,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/7451\/3220\/files\/Extension_spring_steel_illustrative_5a3ffa80-ccb5-4920-96e4-54e8eabd7079.png?v=1779176113"},{"product_id":"axs-es-10019","title":"Extension Spring | Do 3.5mm | d 0.55mm | L0 18.1mm | Spring Steel","description":"\u003cp\u003eExtension spring manufactured to DIN EN 15800. Outer diameter 3.5 mm, wire diameter 0.55 mm, free length 18.1 mm. Spring rate 1.45 N\/mm. Initial tension 2.38 N. Material: Spring Steel (EN 10270-1-SH). Hook type: English hook.\u003c\/p\u003e","brand":"AxiSpring","offers":[{"title":"Default Title","offer_id":56768143982916,"sku":"AXS-ES-10019","price":44.87,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/7451\/3220\/files\/Extension_spring_steel_illustrative_709168d6-84a5-462c-8aaa-a91ec990d0dc.png?v=1779176122"},{"product_id":"axs-es-10020","title":"Extension Spring | Do 3.5mm | d 0.55mm | L0 26.4mm | Spring Steel","description":"\u003cp\u003eExtension spring manufactured to DIN EN 15800. Outer diameter 3.5 mm, wire diameter 0.55 mm, free length 26.4 mm. Spring rate 0.9 N\/mm. Initial tension 2.38 N. Material: Spring Steel (EN 10270-1-SH). Hook type: English hook.\u003c\/p\u003e","brand":"AxiSpring","offers":[{"title":"Default Title","offer_id":56768144015684,"sku":"AXS-ES-10020","price":44.87,"currency_code":"SEK","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/7451\/3220\/files\/Extension_spring_steel_illustrative_b2aa48e0-4c9b-45dc-9dc3-c67d9812bc6b.png?v=1779176130"},{"product_id":"axs-es-10021","title":"Extension Spring | Do 6mm | d 0.55mm | L0 13.9mm | Spring Steel","description":"\u003cp\u003eExtension spring manufactured to DIN EN 15800. Outer diameter 6 mm, wire diameter 0.55 mm, free length 13.9 mm. Spring rate 0.58 N\/mm. Initial tension 1.09 N. Material: Spring Steel (EN 10270-1-SH). Hook type: English hook.\u003c\/p\u003e","brand":"AxiSpring","offers":[{"title":"Default Title","offer_id":56768144081220,"sku":"AXS-ES-10021","price":44.87,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/7451\/3220\/files\/Extension_spring_steel_illustrative_d7909c58-f43a-45f8-9ebf-522c0526f8f1.png?v=1779176138"},{"product_id":"axs-es-10022","title":"Extension Spring | Do 6mm | d 0.55mm | L0 17.2mm | Spring Steel","description":"\u003cp\u003eExtension spring manufactured to DIN EN 15800. Outer diameter 6 mm, wire diameter 0.55 mm, free length 17.2 mm. Spring rate 0.36 N\/mm. Initial tension 1.09 N. Material: Spring Steel (EN 10270-1-SH). Hook type: English hook.\u003c\/p\u003e","brand":"AxiSpring","offers":[{"title":"Default Title","offer_id":56768144146756,"sku":"AXS-ES-10022","price":44.87,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/7451\/3220\/files\/Extension_spring_steel_illustrative_a280832a-82a6-412f-871c-d4a29a2019c6.png?v=1779176146"},{"product_id":"axs-es-10023","title":"Extension Spring | Do 6mm | d 0.55mm | L0 22.1mm | Spring Steel","description":"\u003cp\u003eExtension spring manufactured to DIN EN 15800. Outer diameter 6 mm, wire diameter 0.55 mm, free length 22.1 mm. Spring rate 0.23 N\/mm. Initial tension 1.09 N. Material: Spring Steel (EN 10270-1-SH). 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