{"product_id":"imscrews-3-8-x-3-1-2-hex-head-lag-screws-304-stainless-steel-partially-threaded-structural-wood-bolts-10-pcs","title":"IMSCREWS 3\/8  x 3-1\/2  Hex Head Lag Screws, 304 Stainless Steel, Partially Threaded Structural Wood Bolts, 10   pcs","description":"\u003cp\u003e\"\u003cstrong\u003eIMSCREWS 3\/8 x 3-1\/2 Heavy-Duty Lag Screws - 304 Stainless Steel (10 pcs)\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eExtreme Strength for Major Wood Structures\u003c\/strong\u003e\u003cbr\u003eEngineered for safety-critical joints where standard screws fall short. These 3\/8 diameter bolts provide massive shear resistance for structural timber framing, deck ledger boards, and heavy gate posts. The 3.5-inch length is the contractor's choice for deep-core anchoring in 4x4 and 6x6 beams.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eVise-Like Clamping with Partial Threading\u003c\/strong\u003e\u003cbr\u003eOur \u003cstrong\u003epartially threaded shank\u003c\/strong\u003e allows the bolt to pull the outer board tightly against the support post. This creates a gap-free, vise-like connection, eliminating the bridging effect where boards remain loose—a common failure in long full-thread screws. Ideal for creating rigid, professional joints in heavy structural nodes.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e304 Stainless Exterior Defense\u003c\/strong\u003e\u003cbr\u003eForged from premium 18-8 (304) Stainless Steel for ultimate weather protection. compatible with \u003cstrong\u003eACQ pressure-treated lumber\u003c\/strong\u003e, preventing structural decay and 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:\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 diameter. Use a 1\/4 bit for softwoods or 9\/32 bit for hardwoods to prevent splitting.\u003cbr\u003e\u003cstrong\u003e¡ñ Why 3-1\/2 length?\u003c\/strong\u003e Optimized for passing through 1.5 timber (like a 2x4) with a strong 2-inch thread anchor in the base post.\u003cbr\u003e\u003cstrong\u003e¡ñ Resilience:\u003c\/strong\u003e Rated for marine, coastal, and high-humidity environments.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003cbr\u003e- Size: 3\/8 x 3-1\/2 \u003cbr\u003e- Thread: Partially Threaded (Max Clamping)\u003cbr\u003e- Material: 304 Stainless Steel (18-8)\u003cbr\u003e- Drive: 9\/16 Hex Head\u003cbr\u003e- Qty: 10 pcs\"\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eELITE CLAMPING POWER  The partially threaded design ensures the smooth shank stays in the outer board, allowing threads to pull timber members together with immense force for a gap-free joint.\u003c\/li\u003e\n\u003cli\u003eHEAVY-DUTY SHEAR STRENGTH  The robust 3\/8-inch diameter provides industrial-grade lateral load resistance, outperforming thinner fasteners for deck beams, pergolas, and framing.\u003c\/li\u003e\n\u003cli\u003e304 EXTERIOR DEFENSE  Forged from premium 304 (18-8) stainless steel to prevent rust and staining in cedar, redwood, or ACQ pressure-treated lumber projects.\u003c\/li\u003e\n\u003cli\u003eSTABLE TORQUE DRIVE  Features a precision hex head for 9\/16  power sockets, providing stable torque transfer for controlled, slip-free seating in dense timber cores.\u003c\/li\u003e\n\u003cli\u003eTECHNICAL SPECIFICATION  To prevent splitting from this robust 3\/8  bolt, pre-drilling a pilot hole (1\/4  for softwoods, 9\/32  for hardwoods) is mandatory for structural safety.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eASIN:\u003c\/strong\u003e B0F21BVVVH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal SKU:\u003c\/strong\u003e IMS0677\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 3\/8\" x 3-1\/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":57034566434982,"sku":"B0F21BVVVH","price":13.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0271\/2784\/0903\/files\/41keW3A_9kL_bef49691-f7a3-4093-af48-ceb1a4cc769d.jpg?v=1787035663","url":"https:\/\/www.imscrews.com\/ru\/products\/imscrews-3-8-x-3-1-2-hex-head-lag-screws-304-stainless-steel-partially-threaded-structural-wood-bolts-10-pcs","provider":"IMSCREWS","version":"1.0","type":"link"}