{"product_id":"grade-5-shear-bolts-for-rotary-cutters-1-2-in-x-3-1-2-in-12-pack","title":"Grade 5 Shear Bolts for Rotary Cutters 1\/2 in x 3-1\/2 in - 12 Pack","description":"\u003cp\u003eOur review of these Grade 5 shear bolts finds them best suited to contractors, farmers, and owners of mid-size rotary cutters who need a dependable, ready-to-install repair kit. The single biggest reason to buy is the combination of \u003cstrong\u003emill certified Grade 5\u003c\/strong\u003e hardened steel and matching \u003cstrong\u003enyloc nuts\u003c\/strong\u003e, which together deliver consistent shear protection while resisting loosening under vibration. The 12-pack format makes it practical for routine maintenance and on-the-spot repairs without having to source individual fasteners.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade 5 hardened steel:\u003c\/strong\u003e Mill certified SAE J429 material provides predictable shear behavior to protect driveline components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete 12-pack:\u003c\/strong\u003e Twelve bolts and twelve nyloc nuts are included so a full blade coupling can be replaced in one go.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNyloc nut locking:\u003c\/strong\u003e Nylon insert nuts help prevent loosening from constant vibration during mowing and field work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal size:\u003c\/strong\u003e 1\/2 in diameter and 3-1\/2 in length are compatible with most rotary cutters such as Bush Hog and King Cutter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion resistant finish:\u003c\/strong\u003e Zinc Cr+3 RoHS compliant coating reduces surface rust and extends service life in outdoor conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis kit is aimed at owners and technicians who service medium rotary cutters and need a dependable, like-for-like replacement for factory shear bolts. It is especially useful for 5 ft and similar models where customers have reported the bolts fit perfectly and perform reliably.\u003c\/p\u003e\u003cp\u003eThose who should look elsewhere are users needing custom shear strengths outside of Grade 5 performance or cutters with nonstandard fastener sizes; this kit only covers the universal 1\/2 in x 3-1\/2 in configuration and standard shear characteristics.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMill certified Grade 5 material gives known, reliable shear protection during overloads.\u003c\/li\u003e\n\u003cli\u003eIncluded nyloc nuts reduce the chance of vibration-induced loosening in field use.\u003c\/li\u003e\n\u003cli\u003eGood value for money with a full set of 12 bolts and nuts ready for service.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eOnly one shear rating and size are offered, so it is not suitable for cutters requiring different bolt dimensions or non-Grade 5 shear characteristics.\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e12 shear bolts and 12 nyloc nuts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBolt grade\u003c\/td\u003e\n\u003ctd\u003eGrade 5 SAE J429 hardened steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e1\/2 in diameter x 3-1\/2 in length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNut type\u003c\/td\u003e\n\u003ctd\u003eNylon insert locknut (nyloc)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eZinc (Cr+3) RoHS compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eMost rotary cutters, including Bush Hog and King Cutter models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThese Grade 5 shear bolts are a practical, cost-effective choice for routine maintenance of common rotary cutters. The combination of \u003cstrong\u003ehardened steel\u003c\/strong\u003e, \u003cstrong\u003enyloc locking nuts\u003c\/strong\u003e, and a corrosion-resistant finish makes the kit a sensible spare-parts purchase for farmers and equipment shops who want reliable fit and function without overpaying.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eAre these bolts compatible with my rotary cutter?\u003c\/strong\u003e\u003cbr\u003eThey fit most cutters that use 1\/2 in diameter x 3-1\/2 in shear bolts, including common Bush Hog and King Cutter models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo the nuts prevent vibration loosening?\u003c\/strong\u003e\u003cbr\u003eYes, the included nyloc nuts have a nylon insert designed to resist loosening from vibration.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat level of corrosion protection is provided?\u003c\/strong\u003e\u003cbr\u003eThe bolts have a zinc Cr+3 RoHS compliant finish to reduce surface corrosion in outdoor use.\u003c\/p\u003e","brand":"MAKERS BOLT","offers":[{"title":"Default Title","offer_id":48257917583579,"sku":"B09SBV12S8","price":29.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81zODPvQTqL._SL1500.jpg?v=1778239049","url":"https:\/\/gearmusthave.com\/products\/grade-5-shear-bolts-for-rotary-cutters-1-2-in-x-3-1-2-in-12-pack","provider":"GearMustHave","version":"1.0","type":"link"}