{"product_id":"simpson-hdue-hold-down","title":"Simpson Strong-Tie HDUE Holdown with Strong-Drive SDS Screws","description":"\u003cstyle\u003e\n.pb-wrap{--pb-line:#e1e3e5;--pb-head:#f6f6f7;max-width:100%}\n.pb-wrap .pb-intro{margin-bottom:20px}\n.pb-acc{border:1px solid var(--pb-line);border-radius:8px;margin:0 0 8px;overflow:hidden}\n.pb-acc\u003esummary{cursor:pointer;padding:14px 16px;font-weight:600;line-height:1.35;\n list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}\n.pb-acc\u003esummary::-webkit-details-marker{display:none}\n.pb-acc\u003esummary::marker{content:\"\"}\n.pb-acc\u003esummary::after{content:\"+\";font-size:22px;font-weight:400;line-height:1;flex:0 0 auto}\n.pb-acc[open]\u003esummary::after{content:\"\\2212\"}\n.pb-acc[open]\u003esummary{border-bottom:1px solid var(--pb-line);background:var(--pb-head)}\n.pb-acc\u003esummary:hover{background:var(--pb-head)}\n.pb-acc .pb-body{padding:16px}\n.pb-acc .pb-body\u003e:first-child{margin-top:0}\n.pb-acc .pb-body\u003e:last-child{margin-bottom:0}\n.pb-q{border:0;border-bottom:1px solid var(--pb-line);border-radius:0;margin:0}\n.pb-q:last-child{border-bottom:0}\n.pb-q\u003esummary{padding:12px 0;font-weight:600}\n.pb-q[open]\u003esummary{background:transparent;border-bottom:0}\n.pb-q\u003esummary:hover{background:transparent;text-decoration:underline}\n.pb-q .pb-body{padding:0 0 12px}\n.pb-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}\n.pb-table{width:100%;border-collapse:collapse;font-size:14px;min-width:380px}\n.pb-table th,.pb-table td{border:1px solid var(--pb-line);padding:8px 10px;\n text-align:left;vertical-align:top}\n.pb-table thead th{background:var(--pb-head)}\n.pb-table caption{caption-side:top;text-align:left;font-weight:600;padding:0 0 8px}\n.pb-note{font-size:13px;opacity:.75;margin-top:16px}\n\u003c\/style\u003e\n\u003cdiv class=\"pb-wrap\"\u003e\n\u003ch2\u003eSimpson Strong-Tie HDUE Holdown with Strong-Drive SDS Screws\u003c\/h2\u003e\n\u003cdiv class=\"pb-intro\"\u003e\n\u003cp\u003eThe HDUE is Simpson Strong-Tie's predeflected holdown for resisting overturning in shearwalls, braced wall panels and other lateral force-resisting assemblies. It replaces the discontinued HDU one for one, at higher load in every size.\u003c\/p\u003e\n\u003cp\u003eSix sizes cover 3,790 to 17,685 lb. allowable tension in DF\/SP. The predeflected seat removes seat deflection under load, and on the four larger sizes the screws drive at 45°, so fewer fasteners carry more load. Strong-Drive SDS Heavy-Duty Connector screws are supplied with the holdown.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe anchor bolt is not included.\u003c\/strong\u003e Size it by model: 5\/8 in. for HDUE3 through HDUE7, 7\/8 in. for HDUE9, 1 in. for HDUE13 and HDUE17. The HDUE13 comes with the heavy-hex anchor nut its tabulated loads require.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdetails class=\"pb-acc\"\u003e\n\u003csummary\u003eFeatures and Common Uses\u003c\/summary\u003e\n\u003cdiv class=\"pb-body\"\u003e\n\u003cul\u003e\n\u003cli\u003ePredeflected seat, so the seat does not deflect under load\u003c\/li\u003e\n\u003cli\u003eAngled fastening on the four larger sizes puts screws in tension as well as shear, cutting the screw count\u003c\/li\u003e\n\u003cli\u003eOverlapping back plate raises fastener and shear values and helps stop the post splitting\u003c\/li\u003e\n\u003cli\u003eTeardrop holes spread load more evenly across the fasteners\u003c\/li\u003e\n\u003cli\u003eScrew pattern is set back from the post end to reduce splitting\u003c\/li\u003e\n\u003cli\u003eOne-for-one replacement for the discontinued HDU, at equal or higher capacity\u003c\/li\u003e\n\u003cli\u003eHDUE17 uses a solid aluminum washer and carries 22% more than the HDU14\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCommonly used for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eShearwall and braced wall panel tie-down at the foundation\u003c\/li\u003e\n\u003cli\u003ePost-to-foundation and post-to-post connections between floors\u003c\/li\u003e\n\u003cli\u003eNarrow wall segments in three-storey framing where shearwall area is limited\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"pb-acc\"\u003e\n\u003csummary\u003eSpecifications\u003c\/summary\u003e\n\u003cdiv class=\"pb-body\"\u003e\n\u003cdiv class=\"pb-scroll\"\u003e\n\u003ctable class=\"pb-table\"\u003e\n\u003ccaption\u003eDimensions and Fasteners\u003c\/caption\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\"\u003eModel\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eGa.\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eW\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eH\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eB\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eCL\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSO\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eAnchor Bolt\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eScrews (supplied)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eHDUE3-SDS3\u003c\/th\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e2-7\/8\"\u003c\/td\u003e\n\u003ctd\u003e8-11\/16\"\u003c\/td\u003e\n\u003ctd\u003e3-3\/8\"\u003c\/td\u003e\n\u003ctd\u003e1-1\/4\"\u003c\/td\u003e\n\u003ctd\u003e1-1\/2\"\u003c\/td\u003e\n\u003ctd\u003e5\/8\"\u003c\/td\u003e\n\u003ctd\u003e(7) 1\/4\" x 3\" SDS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eHDUE5-SDS3\u003c\/th\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e2-7\/8\"\u003c\/td\u003e\n\u003ctd\u003e11-5\/16\"\u003c\/td\u003e\n\u003ctd\u003e3-3\/8\"\u003c\/td\u003e\n\u003ctd\u003e1-1\/4\"\u003c\/td\u003e\n\u003ctd\u003e1-1\/2\"\u003c\/td\u003e\n\u003ctd\u003e5\/8\"\u003c\/td\u003e\n\u003ctd\u003e(10) 1\/4\" x 3\" SDS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eHDUE7-SDS3\u003c\/th\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e2-7\/8\"\u003c\/td\u003e\n\u003ctd\u003e14-11\/16\"\u003c\/td\u003e\n\u003ctd\u003e3-3\/8\"\u003c\/td\u003e\n\u003ctd\u003e1-1\/4\"\u003c\/td\u003e\n\u003ctd\u003e1-1\/2\"\u003c\/td\u003e\n\u003ctd\u003e5\/8\"\u003c\/td\u003e\n\u003ctd\u003e(13) 1\/4\" x 3\" SDS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eHDUE9-SDS3.5\u003c\/th\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e3\"\u003c\/td\u003e\n\u003ctd\u003e17-3\/8\"\u003c\/td\u003e\n\u003ctd\u003e4-5\/16\"\u003c\/td\u003e\n\u003ctd\u003e1-1\/4\"\u003c\/td\u003e\n\u003ctd\u003e1-1\/2\"\u003c\/td\u003e\n\u003ctd\u003e7\/8\"\u003c\/td\u003e\n\u003ctd\u003e(16) 1\/4\" x 3-1\/2\" SDS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eHDUE13-SDS3.5\u003c\/th\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e3\"\u003c\/td\u003e\n\u003ctd\u003e23-1\/16\"\u003c\/td\u003e\n\u003ctd\u003e4-5\/16\"\u003c\/td\u003e\n\u003ctd\u003e1-1\/4\"\u003c\/td\u003e\n\u003ctd\u003e1-1\/2\"\u003c\/td\u003e\n\u003ctd\u003e1\"\u003c\/td\u003e\n\u003ctd\u003e(23) 1\/4\" x 3-1\/2\" SDS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eHDUE17-SDS4.5\u003c\/th\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e3\"\u003c\/td\u003e\n\u003ctd\u003e27-7\/8\"\u003c\/td\u003e\n\u003ctd\u003e5-3\/16\"\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\"\u003c\/td\u003e\n\u003ctd\u003e1-1\/2\"\u003c\/td\u003e\n\u003ctd\u003e1\"\u003c\/td\u003e\n\u003ctd\u003e(28) 1\/4\" x 4-1\/2\" SDS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pb-scroll\"\u003e\n\u003ctable class=\"pb-table\"\u003e\n\u003ccaption\u003eAllowable Tension Loads (160)\u003c\/caption\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\"\u003eModel\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eMin. Post (T x W)\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDF\/SP\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSPF\/HF\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDeflection at load\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eHDUE3-SDS3\u003c\/th\u003e\n\u003ctd\u003e3\" x 3-1\/2\"\u003c\/td\u003e\n\u003ctd\u003e3,790 lb.\u003c\/td\u003e\n\u003ctd\u003e3,340 lb.\u003c\/td\u003e\n\u003ctd\u003e0.127\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eHDUE5-SDS3\u003c\/th\u003e\n\u003ctd\u003e3\" x 3-1\/2\"\u003c\/td\u003e\n\u003ctd\u003e5,375 lb.\u003c\/td\u003e\n\u003ctd\u003e4,700 lb.\u003c\/td\u003e\n\u003ctd\u003e0.146\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eHDUE7-SDS3\u003c\/th\u003e\n\u003ctd\u003e3\" x 3-1\/2\"\u003c\/td\u003e\n\u003ctd\u003e7,015 lb.\u003c\/td\u003e\n\u003ctd\u003e6,030 lb.\u003c\/td\u003e\n\u003ctd\u003e0.154\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eHDUE9-SDS3.5\u003c\/th\u003e\n\u003ctd\u003e3-1\/2\" x 3-1\/2\"\u003c\/td\u003e\n\u003ctd\u003e8,425 lb.\u003c\/td\u003e\n\u003ctd\u003e7,305 lb.\u003c\/td\u003e\n\u003ctd\u003e0.159\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eHDUE9-SDS3.5\u003c\/th\u003e\n\u003ctd\u003e4-1\/2\" x 3-1\/2\"\u003c\/td\u003e\n\u003ctd\u003e9,390 lb.\u003c\/td\u003e\n\u003ctd\u003e7,995 lb.\u003c\/td\u003e\n\u003ctd\u003e0.134\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eHDUE13-SDS3.5\u003c\/th\u003e\n\u003ctd\u003e5-1\/2\" x 3-1\/2\"\u003c\/td\u003e\n\u003ctd\u003e11,900 lb.\u003c\/td\u003e\n\u003ctd\u003e10,215 lb.\u003c\/td\u003e\n\u003ctd\u003e0.164\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eHDUE13-SDS3.5\u003c\/th\u003e\n\u003ctd\u003e7-1\/4\" x 3-1\/2\"\u003c\/td\u003e\n\u003ctd\u003e12,950 lb.\u003c\/td\u003e\n\u003ctd\u003e11,030 lb.\u003c\/td\u003e\n\u003ctd\u003e0.145\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eHDUE17-SDS4.5\u003c\/th\u003e\n\u003ctd\u003e5-1\/2\" x 3-1\/2\"\u003c\/td\u003e\n\u003ctd\u003e16,040 lb.\u003c\/td\u003e\n\u003ctd\u003e13,545 lb.\u003c\/td\u003e\n\u003ctd\u003e0.094\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eHDUE17-SDS4.5\u003c\/th\u003e\n\u003ctd\u003e5-1\/2\" x 5-1\/2\"\u003c\/td\u003e\n\u003ctd\u003e17,685 lb.\u003c\/td\u003e\n\u003ctd\u003e14,775 lb.\u003c\/td\u003e\n\u003ctd\u003e0.111\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp class=\"pb-note\"\u003eLoads are increased for wind or earthquake with no further increase allowed, and assume every specified fastener is used. Finish is G90 galvanized. Figures from Simpson Strong-Tie flier F-C-HDUE25.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"pb-acc\"\u003e\n\u003csummary\u003eHow to Install\u003c\/summary\u003e\n\u003cdiv class=\"pb-body\"\u003e\n\u003col\u003e\n\u003cli\u003eCheck the post against the load table. The tabulated load depends on post size, and a smaller post than listed carries less.\u003c\/li\u003e\n\u003cli\u003eSlide the holdown over the anchor bolt with the seat bearing on the sill or bearing plate and the back plate flat against the post.\u003c\/li\u003e\n\u003cli\u003eDrive every specified SDS screw. No pilot hole is needed. On the HDUE9, HDUE13 and HDUE17, use the angled tabs so the screws enter at 45 degrees.\u003c\/li\u003e\n\u003cli\u003eFit the washer and nut and tighten snug. Use the heavy-hex nut supplied with the HDUE13.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp class=\"pb-note\"\u003eTwo holdowns on opposite faces of the same member can double the tabulated load if the member meets the minimum thickness shown, otherwise offset them so the screws do not interfere. The designer specifies anchor bolt type, length and embedment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"pb-acc\"\u003e\n\u003csummary\u003eFrequently Asked Questions\u003c\/summary\u003e\n\u003cdiv class=\"pb-body\"\u003e\n\u003cdetails class=\"pb-acc pb-q\"\u003e\n\u003csummary\u003eAre the screws included?\u003c\/summary\u003e\n\u003cdiv class=\"pb-body\"\u003e\n\u003cp\u003eYes. Strong-Drive SDS Heavy-Duty Connector screws are supplied with the holdown. The anchor bolt is not, and neither is the nut except on the HDUE13, which ships with its heavy-hex nut.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"pb-acc pb-q\"\u003e\n\u003csummary\u003eWhat size anchor bolt do I need?\u003c\/summary\u003e\n\u003cdiv class=\"pb-body\"\u003e\n\u003cp\u003e5\/8 in. for the HDUE3, HDUE5 and HDUE7. 7\/8 in. for the HDUE9. 1 in. for the HDUE13 and HDUE17. Some tabulated loads exceed the tensile strength of a standard Grade 36 rod, so have the anchor checked by your designer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"pb-acc pb-q\"\u003e\n\u003csummary\u003eWhich HDUE replaces my HDU?\u003c\/summary\u003e\n\u003cdiv class=\"pb-body\"\u003e\n\u003cp\u003eHDU2 to HDUE3, HDU4 to HDUE5, HDU5 and HDU8 to HDUE7, HDU8 on a 3-1\/2 in. post to HDUE9, HDU11 to HDUE13, HDU14 to HDUE17. Every one of these is equal or higher capacity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"pb-acc pb-q\"\u003e\n\u003csummary\u003eDo I need to predrill for the SDS screws?\u003c\/summary\u003e\n\u003cdiv class=\"pb-body\"\u003e\n\u003cp\u003eNo. Strong-Drive SDS screws drive straight into the post without a pilot hole.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"pb-acc pb-q\"\u003e\n\u003csummary\u003eCan I use two on the same post?\u003c\/summary\u003e\n\u003cdiv class=\"pb-body\"\u003e\n\u003cp\u003eYes. Holdowns on opposite faces can double the tabulated load if the member is at least the minimum thickness listed. If it is thinner, offset them vertically so the screws do not meet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Simpson Strong-Tie","offers":[{"title":"HDUE3-SDS3","offer_id":54847756435775,"sku":"HDUE3-SDS3","price":55.36,"currency_code":"CAD","in_stock":true},{"title":"HDUE5-SDS3","offer_id":54847756468543,"sku":"HDUE5-SDS3","price":61.28,"currency_code":"CAD","in_stock":true},{"title":"HDUE7-SDS3","offer_id":54847756501311,"sku":"HDUE7-SDS3","price":100.94,"currency_code":"CAD","in_stock":true},{"title":"HDUE9-SDS3.5","offer_id":54847756534079,"sku":"HDUE9-SDS3.5","price":114.25,"currency_code":"CAD","in_stock":true},{"title":"HDUE13-SDS3.5","offer_id":54847756566847,"sku":"HDUE13-SDS3.5","price":184.96,"currency_code":"CAD","in_stock":true},{"title":"HDUE17-SDS4.5","offer_id":54847756599615,"sku":"HDUE17-SDS4.5","price":205.17,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0685\/4901\/7919\/files\/hdue3sds3.jpg?v=1778093413","url":"https:\/\/griffbuildingsupplies.com\/products\/simpson-hdue-hold-down","provider":"Griff Building Supplies","version":"1.0","type":"link"}