{"product_id":"t-h-marine-cmc-top-transom-washer-plate-12-7-8-inch-hole-centers-6061-t6-aluminum","title":"T-H Marine CMC Top Transom Washer Plate, 12-7\/8 Inch Hole Centers, 6061-T6 Aluminum","description":"\u003cp\u003eThe T-H Marine CMC Top Transom Washer Plate is a load-distributing backing plate for transom-mounted tilt and trim units and jack plates. It is machined from strong 3\/8 inch 6061-T6 alloy aluminum, not cast aluminum, giving it the strength to handle the mounting loads of high performance engines without deforming. Bolting this plate against the inside of the transom spreads the clamping load of the mounting bolts across a wider area of fiberglass, so the bolt heads do not dig in, bite into, or crush the transom material over time. This is especially important on boats running powerful engines, where concentrated point loads from bolts alone can crack gelcoat or compress the transom core.\u003c\/p\u003e\u003cp\u003eThis is the top plate in a matched pair, with 12-7\/8 inch hole centers sized to line up with standard tilt and trim and jack plate mounting patterns. A companion CMC Bottom Transom Washer Plate is sold separately under a different part number with 9-7\/8 inch hole centers, so be sure to order the correct plate for the position you are reinforcing. The plate is a simple, purpose-built piece of hardware: no moving parts, no finish to wear off, just a solid aluminum backing plate designed to be installed once and left in place for the life of the transom mounting hardware.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e T-H Marine CMC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 20022\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 3\/8 inch 6061-T6 alloy aluminum (not cast aluminum)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Centers:\u003c\/strong\u003e 12-7\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosition:\u003c\/strong\u003e Top transom washer plate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 733572020022\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1 pound\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eDesigned for transom mounting locations using a 12-7\/8 inch hole center pattern, matching standard CMC tilt and trim units and jack plates.\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the T-H Marine CMC Top Transom Washer Plate used for?\u003c\/strong\u003e It is a backing plate, part number 20022, installed on the inside of a boat transom to spread the clamping load of tilt and trim or jack plate mounting bolts over a wider area so the bolts do not bite into or crush the transom.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is this plate made of?\u003c\/strong\u003e Part number 20022 is machined from 3\/8 inch 6061-T6 alloy aluminum, not cast aluminum, which gives it the strength to handle high performance engine mounting loads without deforming.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the hole centers on this washer plate?\u003c\/strong\u003e The hole centers measure 12-7\/8 inch, matching the mounting pattern of standard CMC tilt and trim units and jack plates.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this the top or bottom transom washer plate?\u003c\/strong\u003e This is the top transom washer plate, part number 20022. A separate CMC Bottom Transom Washer Plate with 9-7\/8 inch hole centers is sold under a different part number, so make sure to order the plate that matches the position you are reinforcing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Top Transom Washer Plate weigh?\u003c\/strong\u003e Part number 20022 weighs 1 pound.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the plate cast or machined aluminum?\u003c\/strong\u003e It is not cast aluminum. The CMC Top Transom Washer Plate, part 20022, is made from strong 3\/8 inch 6061-T6 alloy aluminum for better strength and load distribution.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy would I need a transom washer plate instead of just tightening the mounting bolts directly?\u003c\/strong\u003e Direct bolt tightening without a backing plate concentrates load at each bolt head, which can bite into the transom over time, especially with high performance engines; the CMC Top Transom Washer Plate spreads that load evenly across the transom surface.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this washer plate come with mounting hardware?\u003c\/strong\u003e Part number 20022 is the aluminum washer plate itself; it is used together with the mounting bolts of the tilt and trim unit or jack plate being installed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this fit any jack plate or tilt and trim unit?\u003c\/strong\u003e The CMC Top Transom Washer Plate, part 20022, is sized to a 12-7\/8 inch hole center pattern, matching standard CMC tilt and trim and jack plate mounting.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the T-H Marine CMC Top Transom Washer Plate genuine or aftermarket?\u003c\/strong\u003e Part number 20022 is a genuine T-H Marine CMC component, manufactured to the same 12-7\/8 inch hole center pattern used across CMC's tilt and trim and jack plate mounting hardware.\u003c\/p\u003e","brand":"CMC Marine","offers":[{"title":"Default Title","offer_id":49027442737371,"sku":"T-H-20022","price":38.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/T-H-20022_lg__95106.1651754573.500.750.jpg?v=1785163481","url":"https:\/\/www.goodvibesmarina.com\/products\/t-h-marine-cmc-top-transom-washer-plate-12-7-8-inch-hole-centers-6061-t6-aluminum","provider":"Good Vibes Marina","version":"1.0","type":"link"}