{"product_id":"imscrews-3-8-x-4-1-2-hex-head-lag-screws-304-stainless-steel-18-8-partially-threaded-heavy-duty-wood-bolts-for-structural-framing-10pcs","title":"IMSCREWS 3\/8  x 4-1\/2  Hex Head Lag Screws, 304 Stainless Steel (18-8), Partially Threaded Heavy Duty Wood Bolts for Structural Framing, 10pcs","description":"\"\u003cstrong\u003eIMSCREWS 3\/8 x 4-1\/2 Heavy-Duty Lag Screws - 304 Stainless Steel (10 pcs)\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eIndustrial-Grade Structural Penetration\u003c\/strong\u003e\u003cbr\u003eWhen projects demand the highest level of structural integrity, these 4.5-inch bolts deliver. The thick 3\/8 diameter provides massive shear resistance, making this 10-piece pack the professional choice for securing extra-thick timber beams, heavy-duty landscaping ties, or large structural brackets to 6x6 posts where deep anchoring is non-negotiable.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eVise-Like Clamping Power\u003c\/strong\u003e\u003cbr\u003eOur \u003cstrong\u003epartially threaded shank\u003c\/strong\u003e features a smooth upper section that allows the bolt to pull the outer timber tightly against the support structure. This creates a gap-free, rock-solid joint, eliminating the bridging effect common in extra-long full-thread screws for a high-tension, professional-grade finish.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e304 Stainless Weather Protection\u003c\/strong\u003e\u003cbr\u003eForged from premium 18-8 (304) stainless steel for elite rust protection in outdoor and humid environments. compatible with \u003cstrong\u003eACQ pressure-treated lumber\u003c\/strong\u003e. Prevents unsightly rust streaks and maintains structural safety on high-value cedar, redwood, or premium structural framing.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e¡ñ Tools:\u003c\/strong\u003e Fits a standard \u003cstrong\u003e9\/16 hex socket\u003c\/strong\u003e or wrench.\u003cbr\u003e\u003cstrong\u003e¡ñ Pre-drilling:\u003c\/strong\u003e Mandatory for this extreme length and diameter. Use a 1\/4 bit for softwoods or 5\/16 bit for hardwoods to prevent timber splitting.\u003cbr\u003e\u003cstrong\u003e¡ñ Why 4-1\/2 length?\u003c\/strong\u003e Optimized for passing through 2.5 or 3 timber while maintaining a massive 1.5 + thread anchor in the base post.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003cbr\u003e- Size: 3\/8 x 4-1\/2 \u003cbr\u003e- Thread: Partially Threaded (Max Clamping)\u003cbr\u003e- Material: 304 Stainless Steel\u003cbr\u003e- Drive: 9\/16 Hex Head\u003cbr\u003e- Qty: 10 pcs\"\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMAXIMUM CLAMPING FORCE The partial thread allows the smooth shank to bypass outer layers, drawing thick timber together for a gap-free, rock-solid joint.\u003c\/li\u003e\n\u003cli\u003eDEEP-REACH ANCHORING Strategically sized for penetrating multi-layer beams (up to 3  thick) and anchoring deeply into structural posts with elite 3\/8  shear resistance.\u003c\/li\u003e\n\u003cli\u003e304 EXTERIOR DEFENSE Forged from premium 304 (18-8) stainless steel to endure humid timber cores and prevent rust staining in cedar, redwood, or ACQ lumber.\u003c\/li\u003e\n\u003cli\u003eSTABLE TORQUE DELIVERY Precision hex head ensures a secure 9\/16  socket fit, delivering maximum torque for controlled installation in dense hardwoods.\u003c\/li\u003e\n\u003cli\u003e[TECHNICAL SPECIFICATION] To ensure structural safety and prevent splitting, pre-drilling a deep pilot hole (1\/4  for softwoods, 9\/32  for hardwoods) is mandatory.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eASIN:\u003c\/strong\u003e B0F21CKN9Y\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal SKU:\u003c\/strong\u003e IMS0683\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 3\/8\" x 4-1\/2\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Style:\u003c\/strong\u003e Hex\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 10\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IMSCREWS","offers":[{"title":"Default Title","offer_id":57034569318566,"sku":"B0F21CKN9Y","price":16.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0271\/2784\/0903\/files\/5127F26r8IL_f7eeeb80-d17f-4ee9-8ea0-f0410dbc3487.jpg?v=1787035668","url":"https:\/\/www.imscrews.com\/products\/imscrews-3-8-x-4-1-2-hex-head-lag-screws-304-stainless-steel-18-8-partially-threaded-heavy-duty-wood-bolts-for-structural-framing-10pcs","provider":"IMSCREWS","version":"1.0","type":"link"}