{"product_id":"imscrews-5-16-x-2-1-2-hex-head-lag-screws-304-stainless-steel-partially-threaded-heavy-duty-timber-bolts-for-decking-post-framing-5-pcs","title":"IMSCREWS 5\/16  x 2-1\/2  Hex Head Lag Screws, 304 Stainless Steel, Partially Threaded Heavy-Duty Timber Bolts for Decking \u0026 Post Framing, 5   pcs","description":"\"\u003cstrong\u003eIMSCREWS 5\/16 x 2-1\/2 Heavy-Duty Lag Screws - 304 Stainless Steel (5 pcs)\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHeavy-Duty Structural Anchoring\u003c\/strong\u003e\u003cbr\u003eThe 5\/16 diameter offers significant industrial-grade shear strength for critical load-bearing joints. At 2.5 inches, these bolts are the professional choice for joining standard 2x lumber (1.5 thick) to 4x4 posts, ensuring deep penetration and a rock-solid connection for deck railings, gates, and pergolas.\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 beam. This clamping effect ensures a gap-free, permanent joint, eliminating the bridging effect where boards remain loose—a common issue with long full-thread screws.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e304 Stainless Weather Protection\u003c\/strong\u003e\u003cbr\u003eForged from premium 18-8 (304) stainless steel for superior rust resistance in outdoor or humid environments. compatible with \u003cstrong\u003eACQ pressure-treated lumber\u003c\/strong\u003e. Prevents unsightly rust streaks on high-value cedar, redwood, or premium deck framing.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e¡ñ Tools:\u003c\/strong\u003e Fits a standard \u003cstrong\u003e1\/2 hex socket\u003c\/strong\u003e or wrench.\u003cbr\u003e\u003cstrong\u003e¡ñ Pre-drilling:\u003c\/strong\u003e Recommended. Use a 3\/16 bit for softwoods or 7\/32 bit for hardwoods to prevent timber splitting.\u003cbr\u003e\u003cstrong\u003e¡ñ Why 2-1\/2 length?\u003c\/strong\u003e Optimized for passing through 1.5 timber with a deep 1 thread anchor in the base post for maximum stability.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003cbr\u003e- Size: 5\/16 x 2-1\/2 \u003cbr\u003e- Thread: Partially Threaded (Max Clamping)\u003cbr\u003e- Material: 304 Stainless Steel\u003cbr\u003e- Drive: 1\/2 Hex Head\u003cbr\u003e- Qty: 5 pcs\"\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMAXIMUM STRUCTURAL CLAMPING The precision partial thread design allows the shank to bypass the outer beam, pulling lumber together for a rock-solid, gap-free structural joint.\u003c\/li\u003e\n\u003cli\u003eDEEP-ANCHOR STABILITY At 2.5 inches long, these bolts offer superior penetration for securing 2x lumber to structural posts, providing elite withdrawal resistance.\u003c\/li\u003e\n\u003cli\u003ePREMIUM 304 CORROSION SHIELD Forged from 304 (18-8) stainless steel to prevent rust and staining in cedar, redwood, and pressure-treated lumber.\u003c\/li\u003e\n\u003cli\u003eHIGH-TORQUE DRIVE INTERFACE Robust hex head ensures a secure 1\/2  socket fit, delivering steady torque for controlled installation in dense hardwoods.\u003c\/li\u003e\n\u003cli\u003eTECHNICAL INSTALLATION SPEC To ensure structural safety and prevent splitting, pre-drilling a pilot hole (7\/32  for softwoods, 1\/4  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 B0F21BGS8Y\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal SKU:\u003c\/strong\u003e IMS0639\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 5\/16\" x 2-1\/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 5\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IMSCREWS","offers":[{"title":"Default Title","offer_id":57034520952998,"sku":"B0F21BGS8Y","price":8.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0271\/2784\/0903\/files\/41keW3A_9kL_245c5b85-d8c7-41cb-96e3-5e6417ef1a38.jpg?v=1787035611","url":"https:\/\/www.imscrews.com\/products\/imscrews-5-16-x-2-1-2-hex-head-lag-screws-304-stainless-steel-partially-threaded-heavy-duty-timber-bolts-for-decking-post-framing-5-pcs","provider":"IMSCREWS","version":"1.0","type":"link"}