{"product_id":"atb-m2100c-l-shape-steel-mounting-brackets-for-c-frame-grade-8-hardware-set-of-2","title":"ATB M2100C L-Shape Steel Mounting Brackets for C-Frame, Grade 8 Hardware, Set of 2","description":"\u003cp\u003eThe ATB M2100C is a pair of fixed L-shape steel brackets for hanging an underbody or utility box from a C-frame truck or trailer. Each bracket is 28\" tall and 25\" deep, made from 3\/16 gauge steel with a welded angled cross support, and ATB rates the set at 500 lb. The steel is zinc epoxy primed and finished in a baked black powder coat, and Grade 8 hardware is included.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2 M2100C L-shape steel brackets (left and right)\u003c\/li\u003e\n\u003cli\u003eGrade 8 mounting hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e3\/16 Gauge Steel\u003c\/strong\u003e\u003cbr\u003eATB builds the M2100C from 3\/16 gauge steel, a bracket it calls super heavy duty, with a welded angled cross support.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e500 lb Load Rating\u003c\/strong\u003e\u003cbr\u003eATB rates the M2100C set for C-frame mount applications up to 500 lb.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e28\" x 25\" L-Shape\u003c\/strong\u003e\u003cbr\u003eEach L-shaped bracket is 28\" tall and 25\" deep, and the pair weighs 42 lb.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGrade 8 Hardware\u003c\/strong\u003e\u003cbr\u003eThe set comes with Grade 8 hardware for fastening the brackets to the frame.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePredrilled Brackets\u003c\/strong\u003e\u003cbr\u003eThe brackets have predrilled holes for easier mounting, and rubber strips go between bracket and frame.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePrimer And Powder Coat\u003c\/strong\u003e\u003cbr\u003eA zinc epoxy primer and a baked black powder topcoat protect the steel.\u003c\/p\u003e\n\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cdiv style=\"background:#faf7f7;border-left:4px solid #ba232a;border-radius:0 8px 8px 0;padding:14px 16px;margin:12px 0;\"\u003e\u003cp style=\"margin:0;\"\u003eHow to choose: the M2100C suits boxes up to 500 lb loaded on a C-frame. Check that your box sits within the 25\" bracket depth and that the frame has room for 28\" tall brackets below the deck. You will drill two 9\/16\" holes per bracket in the frame web unless it is already predrilled.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cb\u003eFits:\u003c\/b\u003e C-channel truck and trailer frames; boxes up to 500 lb loaded\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eApplication:\u003c\/b\u003e C-frame mount\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eBrand:\u003c\/b\u003e ATB\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePart Number:\u003c\/b\u003e M2100C\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eType:\u003c\/b\u003e L-shape mounting brackets, set of 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial:\u003c\/b\u003e 3\/16 gauge steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSize:\u003c\/b\u003e 28\" H x 25\" D\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLoad Rating:\u003c\/b\u003e 500 lb max\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWeight:\u003c\/b\u003e 42 lb per set\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFinish:\u003c\/b\u003e Black powder coat over zinc epoxy primer\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHardware:\u003c\/b\u003e Grade 8, included\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMade in:\u003c\/b\u003e USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eTime:\u003c\/b\u003e About 1.5 hours · \u003cb\u003eWhat's involved:\u003c\/b\u003e Bolts to the C-frame web through two 9\/16\" holes per bracket, with rubber strips between bracket and frame; no welding · \u003cb\u003eTools:\u003c\/b\u003e 3\/4\" ratchet wrench; 3\/4\" wrench; Tape measure; Drill with 9\/16\" bit; Utility knife; Blocks\u003c\/p\u003e\n\u003cp\u003eHere's the short version. Follow ATB's install sheet (below) for your truck's exact positions and hardware.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eCheck all parts against the parts list and look over the frame area to make sure there is room for the box.\u003c\/li\u003e\n\u003cli\u003eTake the brackets to the frame and raise them on a jack or wood blocks to the height and width where they will mount. If the frame is already predrilled, skip to step 4.\u003c\/li\u003e\n\u003cli\u003eMark the bracket hole pattern on the frame, spacing the holes as far apart vertically as the frame height allows. Remove the brackets and drill two 9\/16\" holes per bracket, following the truck maker's manual for frame drilling.\u003c\/li\u003e\n\u003cli\u003eApply the 3\" rubber strips to the brackets, cut the bolt holes in the rubber with a utility knife and set the brackets back on the frame.\u003c\/li\u003e\n\u003cli\u003eInsert the bolts with the large heavy washers from the bracket side through the bracket and the frame, add a flat washer and lock nut on the back of the frame, and tighten all nuts securely.\u003c\/li\u003e\n\u003cli\u003eNever drill the top or bottom flange of the frame and never weld the brackets to the frame.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eResources\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0805\/4784\/0244\/files\/atb-m2100c-installation-instructions.pdf?v=1793715301\" target=\"_blank\" rel=\"noopener\"\u003eATB ATB-M2100C installation sheet (PDF)\u003c\/a\u003e, ATB's own step-by-step guide.\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eWarranty, Shipping \u0026amp; Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty.\u003c\/strong\u003e ATB covers its standard truck boxes with a 60-month (5-year) limited warranty for the original purchaser; it is not transferable.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor a warranty claim, contact us with your order number and photos and we will work it through with ATB.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eShipping.\u003c\/strong\u003e Ships by freight from the ATB factory in Blanchard, ND; lift-gate delivery available.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAlaska, Hawaii and Canada: contact us for a freight quote before you order.\u003c\/li\u003e\n\u003cli\u003eWe email your tracking details as soon as it ships.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInspect on delivery.\u003c\/strong\u003e Check the box when the freight arrives, before the driver leaves: look over the lids, doors, corners and welds for dents, scratches or shipping damage. Note any damage on the delivery receipt and send us photos. Check it as soon as it arrives.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLook for crushed ends, punctures or tears in the carton.\u003c\/li\u003e\n\u003cli\u003eIf something looks wrong, take photos of the box and the parts (and if a driver asks you to sign, note the damage on the receipt).\u003c\/li\u003e\n\u003cli\u003eOpen the box and check the parts against the parts list before you install.\u003c\/li\u003e\n\u003cli\u003eEmail \u003ca href=\"mailto:support@prestigetruck.com\"\u003esupport@prestigetruck.com\u003c\/a\u003e right away with your order number, a short note and photos. We send a replacement or a full refund at no cost to you.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e30-day returns.\u003c\/strong\u003e Return it within 30 days of delivery, unused, in the original packaging, with proof of purchase.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEmail \u003ca href=\"mailto:support@prestigetruck.com\"\u003esupport@prestigetruck.com\u003c\/a\u003e with your order number. We reply within 1-2 business days with instructions.\u003c\/li\u003e\n\u003cli\u003eDamaged, defective or wrong item: we send a prepaid label or arrange a pickup.\u003c\/li\u003e\n\u003cli\u003eChanged your mind: you pay return shipping. No restocking fee.\u003c\/li\u003e\n\u003cli\u003eRefunds go back to your original payment method within 7 business days of approval. See our \u003ca href=\"https:\/\/prestigetruck.com\/policies\/refund-policy\"\u003ereturns policy\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAbout ATB\u003c\/h3\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:24px;align-items:flex-start;margin:6px 0 4px;\"\u003e\n\u003cdiv style=\"flex:0 0 150px;max-width:150px;border:2px solid #14161a;padding:12px 8px;text-align:center;font:700 22px\/1 Rajdhani,'Arial Narrow',sans-serif;color:#b3121f;\"\u003eATB\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 340px;min-width:240px;\"\u003e\u003cp\u003eAmerican Truckboxes (ATB) builds aluminum and steel truck boxes, tanks and storage in Blanchard, North Dakota, and has done so for more than 25 years, by its own account. Its range covers pickup crossover, side-mount, chest and drawer boxes, service-truck boxes and packs, fuel tanks, and heavy-truck and trailer boxes.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#faf7f7;border-left:4px solid #b3121f;border-radius:0 8px 8px 0;padding:14px 16px;margin:16px 0 0;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eAuthorized ATB dealer.\u003c\/strong\u003e Prestige Truck is an authorized ATB dealer: every box on this page is built by ATB to the part number shown.\u003c\/p\u003e\u003c\/div\u003e","brand":"American Truckboxes","offers":[{"title":"Default Title","offer_id":68033044185332,"sku":"M2100C","price":221.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0805\/4784\/0244\/files\/atb-tb39013-tb-product-36969.jpg?v=1793716207","url":"https:\/\/prestigetruck.com\/products\/atb-m2100c-l-shape-steel-mounting-brackets-for-c-frame-grade-8-hardware-set-of-2","provider":"Prestige Truck","version":"1.0","type":"link"}