5/8 galvanized lag bolt hex head heavy duty wood fastener angled view
5/8 galvanized lag bolt hex head heavy duty wood fastener angled view
5/8 lag bolt galvanized steel full length view hex head screw
5/8 lag bolt galvanized steel full length view hex head screw
5/8 galvanized lag bolt hex head heavy duty wood fastener angled view
5/8 lag bolt galvanized steel full length view hex head screw

5/8 Lag Bolts – Heavy-Duty Galvanized Steel Fasteners

✔ 100% satisfaction guarantee

$45 - $352
/

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For applications where sheer structural load demands a bigger fastener, our 5/8 lag bolts are the professional's answer. Manufactured by Hillman Paulin and finished with a hot-dip galvanized coating, these hex lag bolts are built for timber framing, heavy deck construction, retaining wall anchoring, and any build where a smaller fastener simply won't cut it. Trusted by contractors throughout Ontario for their strength and corrosion resistance.

Hillman Paulin – 5/8" Hex Lag Bolts (Steel Galvanized) are heavy-duty fasteners designed for strong, secure connections in wood and structural applications. Made from durable galvanized steel, these hex-head lag bolts provide excellent resistance to rust and corrosion, making them ideal for both indoor and outdoor use.

Their robust construction ensures a reliable hold in projects like deck building, framing, fencing, and heavy equipment mounting. The hex head allows easy installation with a wrench or socket, while the threaded design delivers maximum grip and stability. These lag bolts are perfect for professionals and DIY enthusiasts who need strength, longevity, and performance.

Built for Heavy Structural Loads Across Ontario

The 5/8 diameter means more thread contact, greater shear capacity, and a holding strength that contractors rely on for demanding structural jobs. Whether you're working on commercial timber frames, heavy pergola builds, or large retaining structures, these bolts deliver the mechanical performance the job requires.

5/8 galvanized lag bolt hex head heavy duty wood fastener angled view
5/8 Lag Bolts – Heavy-Duty Galvanized Steel Fasteners
$45 - $352
5/8 galvanized lag bolt hex head heavy duty wood fastener angled view
3-1/2" in / 25 pcs
$45 /each
5/8 galvanized lag bolt hex head heavy duty wood fastener angled view
3-1/2" in / 50 pcs
$85 /each
5/8 galvanized lag bolt hex head heavy duty wood fastener angled view
3-1/2" in / 100 pcs
$165 /each
5/8 lag bolt galvanized steel full length view hex head screw
5" in / 25 pcs
$68 /each
5/8 lag bolt galvanized steel full length view hex head screw
5" in / 50 pcs
$128 /each
5/8 lag bolt galvanized steel full length view hex head screw
5" in / 100 pcs
$240 /each
5/8 lag bolt galvanized steel full length view hex head screw
6" in / 25 pcs
$90 /each
5/8 lag bolt galvanized steel full length view hex head screw
6" in / 50 pcs
$182 /each
5/8 lag bolt galvanized steel full length view hex head screw
6" in / 100 pcs
$352 /each
Total:

Hillman Paulin — Built to Trade Standards

Every Hillman Paulin fastener is manufactured to meet the performance standards that Canadian trade professionals expect — consistent dimensions, clean threads, and reliable coating quality batch after batch.

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