Marine Construction

Portland Bolt and its acquisition, Northwest Bolt, have been leading suppliers of marine fasteners and hardware since the early 1900’s. We manufacture hot-dip galvanized and stainless steel bolts for the construction of docks, marinas, ports, and other marine related projects.

We have supplied marine projects on both coasts as well as overseas in Japan, China, Korea, and Pakistan. Follow the link for a list of some of the high profile marine projects for which Portland Bolt has supplied fasteners. Portland Bolt’s ability to manufacture and galvanize marine construction fasteners all within our own facility allows us to provide the highest quality fasteners in the industry and meet the most demanding delivery schedules.

Learn more about marine fasteners on our specialized microsite marineconstructionbolts.com.

Common Products

Hex Bolts

Hex bolts are a commonly used construction fastener. We manufacture hex head bolts up to 2-1/2" in diameter.

Hex Lag Screw

Hex lag screws are used in wood projects. We can provide hex lag screws up to 1-1/2" in diameter.

Square Head Bolts

Square head machine bolts were the industry standard prior to hex bolts gaining prominence. We manufacture square bolts up to 2" in diameter.

Timber Bolts

Timber bolts have been an industry standard in timber and marine construction for decades. Timber bolts are available up to 1-1/2" in diameter.

90° Anchor Bolt

90° Anchor Bolt

Right angle bend anchor bolts are the one of the most common fastener for connecting steel to concrete.

Plates

Portland Bolt can punch and shear flat bar up to 1" thick. Angle assemblies with multiple holes are also available.

Malleable Iron Washers

Malleable cast iron round washers are used in dock and wood construction.

Ogee Washers

Ogee refers to the curved shape of this large, cast iron washer. They are typically used in dock and timber construction.

Round Plate Washers

Round plate washers are simply a low carbon steel, oversized cut washer designed to provide a larger bearing surface than an F844 washer.

Shear Plates

The shear plate wood connector is intended primarily for wood-to-steel or wood-to-wood connections.

Split Rings

The split ring wood connector is a device for transmitting loads between two pieces of wood.

Anchor Rods

A number of anchor rod configurations are available in a variety of material grades.

We are the Industry Experts

It's no secret that we are known as experts in the fastener industry and have been since 1912. Our devotion to customer service, quality products, and on-time deliveries have propelled us to success since our inception.

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