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Double Threaded Lag

Double Threaded Lag

Double Threaded Lag Screws – Stainless Steel & Hanger Bolts

Our double threaded lag screws—also known as hanger bolts or dowel screws—are designed for secure wood-to-metal or wood-to-wood connections without the need for through-bolting. Featuring wood thread on one end and machine thread on the other, these fasteners allow for strong, hidden fixings in timber, metal brackets, or threaded components.

Available in 316 stainless steel for corrosion resistance in outdoor or marine settings, and galvanised steel for structural and general-purpose use, double threaded lag screws are ideal for mounting posts, brackets, cable supports, balustrades, and timber frames.

Key Features of Double Threaded Lag Screws (Hanger Bolts):

  • Dual thread design: wood screw thread + machine (metric or imperial) thread

  • Available in 316 stainless steel

  • Perfect for balustrade systems, timber construction, decking, and fencing

  • Wood thread end installs into timber, machine thread end accepts nut or fitting

  • Used in tensioned cable systems, solar racking, and architectural fixings

  • Rust-resistant and heavy-duty for long-term structural reliability

  • Available in bulk packs or trade quantities, ready for fast shipping

For clean, professional timber-to-threaded component connections, our double threaded lag screws deliver strength, versatility, and durability in every application.