{"product_id":"lcn-4021regallh-left-hand-adjustable-1-5-top-jamb-push-side-mounted-door-closer-with-tbsrt-thru-bolts-689-aluminum-finish","title":"LCN 4021REGALLH Left Hand Adjustable 1-5 Top Jamb Push Side Mounted Door Closer with TBSRT Thru Bolts 689 Aluminum Finish","description":"\u003cp\u003eThis \u003ca href=\"\/companies\/lcn\"\u003eLCN\u003c\/a\u003e 4021 closer mounts on the push side top jamb with left-hand configuration. It controls door swing speed and ensures reliable closing for medium to heavy-duty commercial applications where consistent operation matters for code compliance.\u003c\/p\u003e\n\n\u003cp\u003eThe cast iron body houses a double heat treated steel pinion and forged steel main arm for long-term durability. All weather fluid maintains performance across temperature ranges. Spring size adjusts from 1 through 5 to match door weight and width requirements.\u003c\/p\u003e\n\n\u003cp\u003eThru-bolt mounting with TBSRT hardware provides secure attachment to hollow metal or wood frames. The aluminum finish resists corrosion in exterior applications. Peel and stick templates speed installation layout.\u003c\/p\u003e\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003e4020 Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eANSI Grade\u003c\/th\u003e\n\u003ctd\u003eGrade 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003ePush Side Top Jamb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHanding\u003c\/th\u003e\n\u003ctd\u003eLeft Hand\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003e689 Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpring Size\u003c\/th\u003e\n\u003ctd\u003eAdjustable 1-5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eMeets ANSI\/BHMA A156.4 Grade 1 requirements and carries UL listing for fire-rated door assemblies.\u003c\/p\u003e\n\n\u003cp\u003eSelecting the right spring size depends on door dimensions and weight - reference the \u003ca href=\"\/resources\/guides\/door-closer-selection-guide\"\u003edoor closer selection guide\u003c\/a\u003e for proper sizing. For applications requiring fire door compliance, see \u003ca href=\"\/resources\/building-codes-standards\/ansi-a156-4\/door-closers\"\u003eANSI A156.4 door closer standards\u003c\/a\u003e covering Grade 1 performance criteria.\u003c\/p\u003e","brand":"LCN","offers":[{"title":"Aluminum","offer_id":46266886127793,"sku":"4021REGALLH","price":722.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/0_c96ad39f-abf8-4b27-9e79-49cc4c6f10f9.webp?v=1776151116","url":"https:\/\/shop.usmadesupply.com\/products\/lcn-4021regallh-left-hand-adjustable-1-5-top-jamb-push-side-mounted-door-closer-with-tbsrt-thru-bolts-689-aluminum-finish","provider":"US Made Supply","version":"1.0","type":"link"}