{"product_id":"imscrews-1-4-x-4-hex-head-lag-screws-304-stainless-steel-partially-threaded-structural-bolts-for-deep-timber-framing-5-pcs","title":"IMSCREWS 1\/4  x 4  Hex Head Lag Screws, 304 Stainless Steel, Partially Threaded Structural Bolts for Deep Timber Framing, 5   pcs","description":"\u003cp\u003e\"\u003cstrong\u003eIMSCREWS 1\/4 x 4 Heavy-Duty Lag Screws - 304 Stainless Steel (5 pcs)\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eExtreme Reach for Deep Timber Joints\u003c\/strong\u003e\u003cbr\u003eWhen your project demands deep penetration, these 4-inch lag bolts provide the necessary reach for structural framing. Perfect for securing landscape timbers, heavy fence rails, or attaching components to 4x4 posts. The 1\/4 diameter offers high shear resistance for critical outdoor structural nodes.\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 spin freely in the outer board. This draws the timber members together into a gap-free, rock-solid joint, eliminating the bridging effect where boards remain loose—a common failure in extra-long full-thread screws.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e304 Stainless Exterior Defense\u003c\/strong\u003e\u003cbr\u003eForged from premium 18-8 (304) Stainless Steel for ultimate weather resistance. compatible with \u003cstrong\u003eACQ pressure-treated lumber\u003c\/strong\u003e. It prevents chemical corrosion and eliminates unsightly rust streaks on high-value cedar, redwood, or deck framing.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eTechnical FAQ\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e¡ñ Tools Required:\u003c\/strong\u003e Fits a standard \u003cstrong\u003e7\/16 hex socket\u003c\/strong\u003e or wrench.\u003cbr\u003e\u003cstrong\u003e¡ñ Pre-drilling:\u003c\/strong\u003e Mandatory for this length. Use a 1\/8 bit for softwoods or 3\/16 bit for hardwoods to prevent splitting.\u003cbr\u003e\u003cstrong\u003e¡ñ Why 4 length?\u003c\/strong\u003e Optimized for passing through 2 or 2.5 thick timber with a deep 1.5 + thread anchor in the base post.\u003cbr\u003e\u003cstrong\u003e¡ñ Resilience:\u003c\/strong\u003e Rated for marine, coastal, and high-humidity outdoor use.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003cbr\u003e- Size: 1\/4 x 4 \u003cbr\u003e- Thread: Partially Threaded (Max Clamping)\u003cbr\u003e- Material: 304 Stainless Steel (18-8)\u003cbr\u003e- Drive: 7\/16 Hex Head\u003cbr\u003e- Qty: 5 pcs\"\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMAXIMIZED CLAMPING FORCE  The engineered partial thread allows the smooth shank to bypass the primary timber, focusing the entire thread engagement on the support member to draw the joint together with massive force.\u003c\/li\u003e\n\u003cli\u003eTHERMAL FRICTION CONTROL  By reducing thread contact in the upper shaft, this design lowers driving resistance and heat accumulation, protecting the stainless steel from snapping during deep 4-inch penetrations.\u003c\/li\u003e\n\u003cli\u003eCORE-LEVEL 304 PROTECTION  Forged from premium 304 (18-8) stainless steel to prevent rust in the moisture-prone core of oversized timber. Fully compatible with ACQ pressure-treated lumber.\u003c\/li\u003e\n\u003cli\u003eSTRUCTURAL CORE STRENGTH  The robust 1\/4-inch diameter offers heavy-duty shear resistance, providing a secure, bolt-level hold for deck posts, pergolas, and framing projects.\u003c\/li\u003e\n\u003cli\u003eMANDATORY PRE-DRILLING  To ensure joint integrity and prevent splitting in deep 4-inch drives, pre-drilling a pilot hole (3\/16  for softwoods, 7\/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 B0F21C6X3Z\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal SKU:\u003c\/strong\u003e IMS0624\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 1\/4\" x 4\"\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 5\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IMSCREWS","offers":[{"title":"Default Title","offer_id":57034502471846,"sku":"B0F21C6X3Z","price":5.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0271\/2784\/0903\/files\/5127F26r8IL_56f2d219-e03d-4c2e-bfb9-5d6794131b83.jpg?v=1787035590","url":"https:\/\/www.imscrews.com\/ru\/products\/imscrews-1-4-x-4-hex-head-lag-screws-304-stainless-steel-partially-threaded-structural-bolts-for-deep-timber-framing-5-pcs","provider":"IMSCREWS","version":"1.0","type":"link"}