► Lag Screws

Lag Screws – Heavy-Duty Fasteners for Wood & Timber Lag screws are essential for securing heavy timber, structural framing, & outdoor construction elements. These rugged fasteners are built to anchor deep into wood & engineered lumber, making them ideal for decks, retaining walls, & load-bearing frames. We supply a wide...

Lag Screws – Heavy-Duty Fasteners for Wood & Timber

Lag screws are essential for securing heavy timber, structural framing, & outdoor construction elements. These rugged fasteners are built to anchor deep into wood & engineered lumber, making them ideal for decks, retaining walls, & load-bearing frames. We supply a wide range of lag screws with hex heads & coarse threads, compatible with both hand & power driving tools. Choose from corrosion-resistant finishes like galvanised or stainless steel to suit indoor & outdoor jobs.

What’s in This Collection:
► Galvanised lag screws for structural framing
► Stainless steel lag bolts for outdoor use
► Heavy-duty timber fasteners with hex heads
► Sizes from 6mm to 16mm diameter, various lengths

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  • Alco - HEX HEAD COACH SCREW GALV 10mm x 75mm PK 15 | ALCGSHC1075
    Alco - 10mm x 75mm Hex Head Coach Screw GALV 10pk | ALCGSHC1075
    Alco - Hex Head Coach Screw Galvanised 10mm x 75mm PK 15 | ALCGSHC1075 Built for demanding timber fixing applications, the Alco Hex Head Coach Screws provide dependable strength and long-lasting performance on site. Featuring a galvanised finish for corrosion resistance and a hex...
    $29.44
    $29.44
  • Alco - HEX HEAD COACH SCREW GALV 10mm x 50mm PK 20 | ALCGSHC1050
    Alco - 10mm x 50mm Hex Head Coach Screw GALV 15pk | ALCGSHC1050
    Alco - Hex Head Coach Screw Galvanised 10mm x 50mm PK 20 | ALCGSHC1050 Designed for strong timber fixing, the Alco Hex Head Coach Screws deliver reliable holding power for structural and general construction applications. Manufactured with a galvanised finish for corrosion resistance and...
    $25.15
    $25.15
  • Alco - HEX HEAD COACH SCREW GALV 10mm x 40mm PK 25 | ALCGSHC1040
    Alco - 10mm x 40mm Hex Head Coach Screw GALV 20pk | ALCGSHC1040
    Alco - HEX HEAD COACH SCREW GALV 10mm x 40mm PK 25 | ALCGSHC1040 Built for strong timber fixing, the Alco Hex Head Coach Screws deliver reliable holding power for structural and heavy-duty applications. Manufactured with a galvanised finish, these coach screws offer excellent...
    $28.40
    $28.40

The Fastener That Won’t Let Go

Built to withstand serious load demands, our lag screws are a must-have for structural timber work. Whether you’re framing a house, fixing ledger boards, or securing posts & beams, we’ve got the heavy-duty fasteners that won’t let go.

► Industrial-strength lag bolts for serious holding power

► Galvanised & stainless options for all weather conditions

► Trusted by builders, landscapers & fabricators

Frequently Asked Questions

Do I need to pre-drill holes for lag screws?

Yes—lag screws should be installed in pre-drilled pilot holes to avoid wood splitting & ensure maximum grip.

Are galvanised lag screws suitable for outdoor use?

Absolutely. Our hot-dip galvanised lag screws are designed to resist rust & corrosion, making them ideal for outdoor timber structures.

What’s the difference between a lag bolt & a regular screw?

Lag bolts have thicker shanks & are designed for high-strength load applications, unlike general-purpose screws which are smaller & less durable.

Brands

Alco

Alco
BBI

BBI
Bordo

Bordo
Bremick

Bremick
Hobsons

Hobsons
Macsim

Macsim
Otter

Otter
Torres

Torres
Trax

Trax

► Lag Screws

Lag Screws – Heavy-Duty Fasteners for Wood & Timber

Lag screws are essential for securing heavy timber, structural framing, & outdoor construction elements. These rugged fasteners are built to anchor deep into wood & engineered lumber, making them ideal for decks, retaining walls, & load-bearing frames. We supply a wide range of lag screws with hex heads & coarse threads, compatible with both hand & power driving tools. Choose from corrosion-resistant finishes like galvanised or stainless steel to suit indoor & outdoor jobs.

What’s in This Collection:
► Galvanised lag screws for structural framing
► Stainless steel lag bolts for outdoor use
► Heavy-duty timber fasteners with hex heads
► Sizes from 6mm to 16mm diameter, various lengths