Get a strong, reliable fastening solution for construction, landscaping and general outdoor projects with these Zenith M12 x 65mm Hot Dip Galvanised Cup Head Bolts & Nuts.
Designed for fastening timber to timber and timber to metal, these heavy-duty cup head bolts feature a smooth, low-profile domed head and a square neck underneath the head. The square neck bites into the material and helps prevent the bolt from spinning while the nut is tightened.
The hot dip galvanised finish provides high corrosion protection, making these bolts particularly well suited to exterior applications where the fastener may be exposed to weather and moisture.
This listing includes a convenient box of 25 M12 x 65mm bolts with matching nuts, ideal for larger projects, professional trades or keeping workshop stock on hand. Zenith's catalogue identifies the M12 x 65mm hot dip galvanised 25-pack as BSD0065.
Genuine Zenith fasteners
M12 x 65mm metric size
25 bolts per box
Matching hex nuts included
Hot dip galvanised finish
Excellent corrosion protection for exterior applications
Low-profile cup / coach bolt head
Smooth, neat finished appearance
Square neck helps prevent the bolt rotating while tightening
Coarse thread provides strong fastening and grip
Suitable for indoor and outdoor applications
Ideal for timber construction and general building projects
Manufactured to the applicable Australian bolt standard
Brand: Zenith
Product Type: Cup Head Bolt / Coach Bolt
Thread Size: M12
Bolt Length: 65mm
Thread: Metric
Finish: Hot Dip Galvanised
Material: Steel
Property Class: 4.6
Head Style: Low-Profile Domed Cup Head
Neck: Square Neck
Nut Type: Hexagonal Nut
Nuts Included: Yes
Quantity: 25 Bolts + 25 Nuts
Pack Type: Box
Zenith Product Code: BSD0065
Bolt Standard: AS 1390
Application: Interior & Exterior
These versatile M12 cup head bolts are suitable for a wide range of building, maintenance and outdoor fastening jobs, including:
Gates
Fences
Pergolas
Carports
Outdoor furniture
Timber framing
Timber structures
Landscaping projects
Retaining-wall related construction
Brackets and steel plates
Timber-to-timber fastening
Timber-to-metal fastening
General construction
Workshop and DIY projects
Zenith specifically identifies its hot dip galvanised cup head bolts for applications including gates, fences, roofing, pergolas, carports and outdoor furniture.
Unlike a conventional hex-head bolt, the cup head bolt has a rounded, low-profile head. Directly beneath the head is a square section designed to pull into timber and resist rotation.
This makes installation straightforward: insert the bolt through a correctly sized pre-drilled hole, position the nut on the threaded end and tighten from the nut side. As the bolt is tightened, the square neck helps hold the bolt securely in position.
The result is a clean, smooth and professional-looking head on the exposed side of the workpiece.
For outdoor construction, corrosion protection is an important consideration.
These Zenith bolts have a hot dip galvanised coating, providing significantly increased protection against exposure to outdoor elements and helping minimise corrosion. Zenith specifies the finish for both internal and external environments.
This makes them a great choice for projects such as fencing, gates, pergolas and other exterior timber structures.
With a substantial 12mm nominal metric thread diameter, these bolts are designed for applications requiring a solid mechanical connection.
The combination of the cup head, square neck, threaded shaft and matching hex nut creates a dependable through-bolted fastening system where access is available to the rear of the material.
25 × Zenith M12 x 65mm Hot Dip Galvanised Cup Head Bolts
25 × Matching Hex Nuts
Everything required for the basic bolted connection is supplied in the box.
Zenith is a well-established Australian fastener brand offering products for building, construction, trade and DIY applications.
These M12 x 65mm bolts combine a strong steel construction, corrosion-resistant hot dip galvanised finish, anti-rotation square neck and smooth cup head, making them an excellent general-purpose choice for outdoor fastening projects.
Reliable fastening. Clean finish. Exterior-ready protection. Convenient 25-pack.