{"product_id":"3-1-2-x-3-1-2-x-square-corners-spring-hinge-pair-bommer-lb4310-350","title":"3-1\/2 x 3-1\/2  x Square Corners Spring Hinge, Pair, Bommer LB4310-350","description":"\u003cb\u003eBommer LB4310-350, 3-1\/2\" x 3-1\/2\"  x Square Corner Single Acting Spring Hinge\u003c\/b\u003e\r\n\r\n\u003cp\u003e\r\nPackaged complete with a Pair (2) Single Action Spring Door Hinges, Tension Adjusting Tool, Locking Pins plus #10 x 3\/4\" Wood Screws and #10-24 x 1\/2\" machine screws. Utilizes ANSI template screw hole pattern for use with wood or metal doors. \r\n\u003c\/p\u003e\r\n\r\n\u003cp\u003e\r\nBommer spring hinges are UL Listed for fire door applications, certified Grade 1 (highest grade) for 1 million cycles and made in the USA. Pivot point aligns with residential butt hinges gage .085 to .109\r\n\u003c\/p\u003e\r\n\r\n\u003cp\u003e\r\nThe included Tension Tool is use to adjust spring tension. The Locking Pins hold the Spring in tension after it is set. These adjustable tension spring hinges allow you to determine how much closing force you apply to the door (how hard\/fast the door self closes). \r\n\u003c\/p\u003e\r\n\r\n\u003ctable width=\"100\" align=\"right\"\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003e\r\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0766\/1489\/3857\/files\/kaba-simplex-902-size.gif?v=1704354717\" width=\"100\" height=\"72\" border=\"0\" alt=\"Bommer made in the USA\"\u003e\r\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003c\/table\u003e\r\n\r\n\u003cp\u003e\r\n\u003cb\u003eSpecifications \u003c\/b\u003e for Bommer LB4310-350 Spring Hinge\r\n\u003c\/p\u003e\u003cul\u003e\r\n\u003cli\u003eHinge Material: Durable Steel\u003c\/li\u003e\r\n\u003cli\u003eHeight: 3-1\/2\"\u003c\/li\u003e\r\n\u003cli\u003eWidth: 3-1\/2\"\u003c\/li\u003e\r\n\u003cli\u003eCorners: Square Corners\u003c\/li\u003e\r\n\u003cli\u003eGauge of Metal: .096 (standard)\u003c\/li\u003e\r\n\u003cli\u003eNumber of Holes: 6\u003c\/li\u003e\r\n\u003cli\u003eStandard Template Hole Pattern\u003c\/li\u003e\r\n\u003cli\u003eWood Screws: #10 x 3\/4\"\u003c\/li\u003e\r\n\u003cli\u003eMachine Screws: #10-24 x 1\/2\"\u003c\/li\u003e\r\n\u003cli\u003eAdjustable Spring Torque\u003c\/li\u003e\r\n\u003cli\u003eNon-Handed\u003c\/li\u003e\r\n\u003cli\u003eUL Listed R-4667 653M for fire door applications.\u003c\/li\u003e\r\n\u003cli\u003eBHMA Certified \u003cb\u003eGrade 1\u003c\/b\u003e for 1 million cycles.\u003c\/li\u003e\r\n\u003cli\u003eFull Mortise - ANSI K81071F\u003c\/li\u003e\r\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0766\/1489\/3857\/files\/LB4310-350.pdf?v=1691094995\" target=\"new\"\u003e\u003cb\u003eBommer LB4310-350 Dimensions Diagram (PDF)\u003c\/b\u003e\u003c\/a\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\r\n\u003cp\u003e\r\n\u003cb\u003e*Sold as a pair (2 Hinges).\u003c\/b\u003e\r\n\u003c\/p\u003e\r\n\r\n\u003cp\u003e\r\n\u003cb\u003e** This item is being discontinued. Very limited quantities available.\u003c\/b\u003e\r\n\u003c\/p\u003e","brand":"Bommer","offers":[{"title":"Default Title","offer_id":49066550821153,"sku":"BOM-LB4310-350","price":25.87,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/1489\/3857\/files\/BOM-LB4310-350-525.gif?v=1716420970","url":"https:\/\/www.doorware.com\/products\/3-1-2-x-3-1-2-x-square-corners-spring-hinge-pair-bommer-lb4310-350","provider":"Doorware.com","version":"1.0","type":"link"}