{"product_id":"ronstan-series-50-all-purpose-block-single-with-universal-head","title":"Ronstan Series 50 All Purpose Block - Single with Universal Head","description":"\u003cb\u003eSeries 50 All Purpose Block - Single - Universal Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eAll purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing. Captive Lock universal head can be fixed in either of two planes, or free to swivel as required\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eExceptionally high working loads\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow maintenance, long service life\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSelf lubricating sheave\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCaptive Lock universal head\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003eMainsheet and halyard applications, vang and spinnaker control lines on boats to  10M(33')\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eNylatron sheave\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave :\u003c\/b\u003e\t50mm(2\")\u003cbr\u003e\u003cb\u003eMax. Rope :\u003c\/b\u003e    12mm(1\/2\")\u003cbr\u003e\u003cb\u003eMax. Pin :\u003c\/b\u003e 5mm(3\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t750kg(1,650lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,500kg(3,310lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t118g(4.1oz)\u003cbr\u003e \u003c!--- cis2:m2lumZRk ---\u003e\n\u003cp\u003eThe Ronstan Series 50 All Purpose Block is designed for versatile sailing applications, providing a reliable solution for sheets, halyards, and control lines on boats up to 33 feet. Constructed with a durable self-lubricating Acetal polymer sheave and polished stainless steel races, this block ensures smooth operation under both dynamic and static loads. Its robust design delivers high working loads with minimal maintenance, making it ideal for cruising and racing scenarios. The captive Lock universal head can be fixed in two planes or allowed to swivel freely, offering flexible rigging options for various configurations. The slotted pin shackle reduces line fouling, enhancing safety and ease of use during sail adjustments. Suitable for mainsheet and halyard applications, as well as vang and spinnaker control lines, this block is built from high-quality materials including Nylatron sheave, Grade 316 stainless steel components, and impact-resistant, fiber-reinforced nylon cheeks, ensuring longevity in harsh marine environments.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eExceptionally high working loads for demanding sailing conditions\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eLow maintenance design promotes long service life\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSelf-lubricating sheave for smooth operation\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCaptive Lock universal head allows fixed or swivel mounting\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSlotted pin shackle prevents line fouling\u003c\/li\u003e\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":44529299521578,"sku":"55253","price":36.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2285\/8794\/files\/55253XL.jpg?v=1783070140","url":"https:\/\/atticusgoods.com\/products\/ronstan-series-50-all-purpose-block-single-with-universal-head","provider":"Atticus Goods","version":"1.0","type":"link"}