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FASTENERS Cup Head Nuts and Bolts HARDWARE

Cup head nuts and bolts are specialized fasteners designed for various applications, particularly in woodworking and construction. Featuring a domed head and a square neck, these fasteners, often referred to as carriage bolts, are ideal for situations where a smooth head is preferred or where the head cannot be easily accessed for tightening. The square neck prevents the bolt from turning when the nut is tightened, ensuring a secure fit. These fasteners are commonly used in timber applications, making them perfect for decks, furniture, and other structures requiring strong and reliable connections.
Available in a range of sizes and materials, cup head nuts and bolts come in both metric (diameter M6 to M24 and lengths from 18mm to 600mm) and imperial measurements (diameter 1/4" to 1/2" and lengths from 3/4" to 18"). They are manufactured from high-strength materials with finishes such as plain, zinc-plated, or hot-dip galvanized for enhanced corrosion resistance. This variety allows builders and contractors to select the right fastener based on specific project requirements and environmental conditions.
The versatility of cup head nuts and bolts makes them suitable for a wide array of construction projects. Their design facilitates easy installation, while their robust construction ensures long-lasting performance under various loads. Whether you are constructing outdoor furniture or building a sturdy deck, cup head nuts and bolts provide the strength and reliability needed for successful assembly. With compliance with relevant standards such as AS 1390 and AS 2451, these fasteners ensure safety and durability in every application.**

M10 x 75mm Hot Dip Galvanised Cup Head Bolts & Nuts

Original price $1.35 - Original price $1.35
Original price
$1.35
$1.35 - $1.35
Current price $1.35

M10 x 75mm Hot Dip Galvanised Cup Head Bolts & Nuts are ideal for structural timber connections and outdoor construction projects. Manufactured...

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Original price $1.35 - Original price $1.35
Original price
$1.35
$1.35 - $1.35
Current price $1.35

M10 x 100mm Hot Dip Galvanised Cup Head Bolts & Nuts

Original price $1.20 - Original price $1.20
Original price
$1.20
$1.20 - $1.20
Current price $1.20

M10 x 100mm Hot Dip Galvanised Cup Head Bolts & Nuts are engineered for strong and secure timber connections in outdoor and structural applicat...

View full details
Original price $1.20 - Original price $1.20
Original price
$1.20
$1.20 - $1.20
Current price $1.20

M10 x 130mm Hot Dip Galvanised Cup Head Bolts & Nuts

Original price $1.43 - Original price $1.43
Original price
$1.43
$1.43 - $1.43
Current price $1.43

M10 x 130mm Hot Dip Galvanised Cup Head Bolts & Nuts are built for serious strength in outdoor timber construction. With a long 130mm shaft and...

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Original price $1.43 - Original price $1.43
Original price
$1.43
$1.43 - $1.43
Current price $1.43

M10 x 150mm Hot Dip Galvanised Cup Head Bolts & Nuts

Original price $1.59 - Original price $1.59
Original price
$1.59
$1.59 - $1.59
Current price $1.59

M10 x 150mm Hot Dip Galvanised Cup Head Bolts & Nuts are ideal for deep timber connections where strength and corrosion resistance are essentia...

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Original price $1.59 - Original price $1.59
Original price
$1.59
$1.59 - $1.59
Current price $1.59

M10 x 180mm Hot Dip Galvanised Cup Head Bolts & Nuts

Original price $1.88 - Original price $1.88
Original price
$1.88
$1.88 - $1.88
Current price $1.88

M10 x 180mm Hot Dip Galvanised Cup Head Bolts & Nuts are engineered for deep, secure timber fastening in large-scale outdoor construction. With...

View full details
Original price $1.88 - Original price $1.88
Original price
$1.88
$1.88 - $1.88
Current price $1.88

M10 x 200mm Hot Dip Galvanised Cup Head Bolts & Nuts

Original price $2.05 - Original price $2.05
Original price
$2.05
$2.05 - $2.05
Current price $2.05

M10 x 200mm Hot Dip Galvanised Cup Head Bolts & Nuts are designed for maximum hold in thick timber and structural applications. The extended 20...

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Original price $2.05 - Original price $2.05
Original price
$2.05
$2.05 - $2.05
Current price $2.05

M10 x 260mm Hot Dip Galvanised Cup Head Bolts & Nuts

Original price $4.10 - Original price $4.10
Original price
$4.10
$4.10 - $4.10
Current price $4.10

M10 x 260mm Hot Dip Galvanised Cup Head Bolts & Nuts are the go-to solution for securing thick timber in large-scale outdoor and structural pro...

View full details
Original price $4.10 - Original price $4.10
Original price
$4.10
$4.10 - $4.10
Current price $4.10

M10 x 300mm Hot Dip Galvanised Cup Head Bolts & Nuts

Original price $4.42 - Original price $4.42
Original price
$4.42
$4.42 - $4.42
Current price $4.42

M10 x 300mm Hot Dip Galvanised Cup Head Bolts & Nuts are built for the most demanding timber construction jobs. With a full 300mm length, they’...

View full details
Original price $4.42 - Original price $4.42
Original price
$4.42
$4.42 - $4.42
Current price $4.42

M12 x 75mm Hot Dip Galvanised Cup Head Bolts & Nuts

Original price $1.57 - Original price $1.57
Original price
$1.57
$1.57 - $1.57
Current price $1.57

M12 x 75mm Hot Dip Galvanised Cup Head Bolts & Nuts are ideal for strong, secure timber fixings in outdoor and structural applications. Featuri...

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Original price $1.57 - Original price $1.57
Original price
$1.57
$1.57 - $1.57
Current price $1.57
Sold out

M12 x 100mm Hot Dip Galvanised Cup Head Bolts & Nuts

Original price $1.82 - Original price $1.82
Original price
$1.82
$1.82 - $1.82
Current price $1.82

M12 x 100mm Hot Dip Galvanised Cup Head Bolts & Nuts are designed for heavy-duty timber connections in outdoor and structural applications. Wit...

View full details
Original price $1.82 - Original price $1.82
Original price
$1.82
$1.82 - $1.82
Current price $1.82

M12 x 130mm Hot Dip Galvanised Cup Head Bolts & Nuts

Original price $2.18 - Original price $2.18
Original price
$2.18
$2.18 - $2.18
Current price $2.18

M12 x 130mm Hot Dip Galvanised Cup Head Bolts & Nuts are perfect for securing thick timber in demanding outdoor environments. With a strong 12m...

View full details
Original price $2.18 - Original price $2.18
Original price
$2.18
$2.18 - $2.18
Current price $2.18

M12 x 150mm Hot Dip Galvanised Cup Head Bolts & Nuts

Original price $2.43 - Original price $2.43
Original price
$2.43
$2.43 - $2.43
Current price $2.43

M12 x 150mm Hot Dip Galvanised Cup Head Bolts & Nuts are engineered for superior strength and durability in outdoor timber construction. Ideal ...

View full details
Original price $2.43 - Original price $2.43
Original price
$2.43
$2.43 - $2.43
Current price $2.43

M12 x 180mm Hot Dip Galvanised Cup Head Bolts & Nuts

Original price $2.73 - Original price $2.73
Original price
$2.73
$2.73 - $2.73
Current price $2.73

M12 x 180mm Hot Dip Galvanised Cup Head Bolts & Nuts are built for deep, heavy-duty timber connections in outdoor and structural applications. ...

View full details
Original price $2.73 - Original price $2.73
Original price
$2.73
$2.73 - $2.73
Current price $2.73

M12 x 200mm Hot Dip Galvanised Cup Head Bolts & Nuts

Original price $2.93 - Original price $2.93
Original price
$2.93
$2.93 - $2.93
Current price $2.93

M12 x 200mm Hot Dip Galvanised Cup Head Bolts & Nuts are designed for the toughest timber construction tasks. With a full 200mm length and stro...

View full details
Original price $2.93 - Original price $2.93
Original price
$2.93
$2.93 - $2.93
Current price $2.93

M12 x 260mm Hot Dip Galvanised Cup Head Bolts & Nuts

Original price $5.75 - Original price $5.75
Original price
$5.75
$5.75 - $5.75
Current price $5.75

M12 x 260mm Hot Dip Galvanised Cup Head Bolts & Nuts are built for deep anchoring in large-scale timber construction. With a long 260mm reach a...

View full details
Original price $5.75 - Original price $5.75
Original price
$5.75
$5.75 - $5.75
Current price $5.75

M12 x 300mm Hot Dip Galvanised Cup Head Bolts & Nuts

Original price $6.85 - Original price $6.85
Original price
$6.85
$6.85 - $6.85
Current price $6.85

M12 x 300mm Hot Dip Galvanised Cup Head Bolts & Nuts are engineered for the most demanding timber joinery applications. With an extra-long 300m...

View full details
Original price $6.85 - Original price $6.85
Original price
$6.85
$6.85 - $6.85
Current price $6.85

M16 x 75mm Hot Dip Galvanised Cup Head Bolts & Nuts

Original price $2.64 - Original price $2.64
Original price
$2.64
$2.64 - $2.64
Current price $2.64

M16 x 75mm Hot Dip Galvanised Cup Head Bolts & Nuts are heavy-duty fasteners designed for structural timber connections that demand superior st...

View full details
Original price $2.64 - Original price $2.64
Original price
$2.64
$2.64 - $2.64
Current price $2.64

M16 x 100mm Hot Dip Galvanised Cup Head Bolts & Nuts

Original price $3.52 - Original price $3.52
Original price
$3.52
$3.52 - $3.52
Current price $3.52

M16 x 100mm Hot Dip Galvanised Cup Head Bolts & Nuts are built for heavy-duty timber construction where extra strength and durability are essen...

View full details
Original price $3.52 - Original price $3.52
Original price
$3.52
$3.52 - $3.52
Current price $3.52

M16 x 120mm Hot Dip Galvanised Cup Head Bolts & Nuts

Original price $4.10 - Original price $4.10
Original price
$4.10
$4.10 - $4.10
Current price $4.10

M16 x 120mm Hot Dip Galvanised Cup Head Bolts & Nuts are engineered for strong, long-lasting timber connections in outdoor and structural appli...

View full details
Original price $4.10 - Original price $4.10
Original price
$4.10
$4.10 - $4.10
Current price $4.10

M16 x 150mm Hot Dip Galvanised Cup Head Bolts & Nuts

Original price $4.96 - Original price $4.96
Original price
$4.96
$4.96 - $4.96
Current price $4.96

M16 x 150mm Hot Dip Galvanised Cup Head Bolts & Nuts are the go-to choice for serious structural timber work. With a strong 16mm diameter and e...

View full details
Original price $4.96 - Original price $4.96
Original price
$4.96
$4.96 - $4.96
Current price $4.96

M16 x 180mm Hot Dip Galvanised Cup Head Bolts & Nuts

Original price $5.82 - Original price $5.82
Original price
$5.82
$5.82 - $5.82
Current price $5.82

M16 x 180mm Hot Dip Galvanised Cup Head Bolts & Nuts are designed for high-strength timber connections in large-scale outdoor and structural bu...

View full details
Original price $5.82 - Original price $5.82
Original price
$5.82
$5.82 - $5.82
Current price $5.82

M16 x 200mm Hot Dip Galvanised Cup Head Bolts & Nuts

Original price $6.53 - Original price $6.53
Original price
$6.53
$6.53 - $6.53
Current price $6.53

M16 x 200mm Hot Dip Galvanised Cup Head Bolts & Nuts are built for maximum strength in deep timber connections. With a heavy-duty 16mm diameter...

View full details
Original price $6.53 - Original price $6.53
Original price
$6.53
$6.53 - $6.53
Current price $6.53

M16 x 260mm Hot Dip Galvanised Cup Head Bolts & Nuts

Original price $8.69 - Original price $8.69
Original price
$8.69
$8.69 - $8.69
Current price $8.69

M16 x 260mm Hot Dip Galvanised Cup Head Bolts & Nuts are designed for deep, high-strength timber fixing in structural and outdoor applications....

View full details
Original price $8.69 - Original price $8.69
Original price
$8.69
$8.69 - $8.69
Current price $8.69

M16 x 300mm Hot Dip Galvanised Cup Head Bolts & Nuts

Original price $10.13 - Original price $10.13
Original price
$10.13
$10.13 - $10.13
Current price $10.13

M16 x 300mm Hot Dip Galvanised Cup Head Bolts & Nuts are engineered for the most demanding timber construction jobs. With an extra-long 300mm l...

View full details
Original price $10.13 - Original price $10.13
Original price
$10.13
$10.13 - $10.13
Current price $10.13

M16 x 360mm Hot Dip Galvanised Cup Head Bolts & Nuts

Original price $12.15 - Original price $12.15
Original price
$12.15
$12.15 - $12.15
Current price $12.15

M16 x 360mm Hot Dip Galvanised Cup Head Bolts & Nuts are built for deep, heavy-duty timber fastening in large-scale construction projects. With...

View full details
Original price $12.15 - Original price $12.15
Original price
$12.15
$12.15 - $12.15
Current price $12.15
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Decking Wood QLD – FAQ & Product Information

At Decking Wood QLD, we offer a wide range of timber, composite, and aluminium decking, batten, and cladding products, along with all the necessary hardware and coating products.

What Timber Species Are Available?

We stock high-quality timber species such as merbau, spotted gum, blackbutt, ironbark, white mahogany, mixed hardwood, Darwin stringybark, grey box, grey ironbark, mix reds, red ironbark, red mahogany, tallowwood, turpentine, jarrah, Western Australian jarrah, bangkirai yellow balau, red bangkirai yellow balau, rosewood, New Guinea rosewood, cypress, cypress pine, silvertop stringybark, Sydney blue gum, Aussie mixed blondes, primelam, magna, durian, kwila, manilkara, kempas, radiata pine, ulin, bangkirai, red tulip oak, blackbean, forest reds, acacia cedar, black wattle, Queensland maple, northern silky oak, silver ash, red silkwood, white tea tree, MGP10 Pine, T2’s and fencing grade pine framing.

What Timber Profiles Do You Offer?

We provide a variety of timber profiles, including decking, screening, battens, posts, handrails, beams, structural laminated beams, step treads, structural pine, and hardwood framing and cladding.

What Composite Decking Brands Are Available?

We carry Modwood composite decking, including Xtreme Guard, Flame Shield, Marina & Natural Range, along with EvaLast composite decking in Infinity & Pioneer, and Trex composite decking, featuring Trex Signature, Trex Transcend Lineage & Trex Transcend Composite Decking Boards.

What Fasteners and Hardware Are Available?

Our selection includes batten screws, threaded rods, coloured screws, decking screws, deck joiners, washers, hex head nuts and bolts, cup head nuts and bolts, and starter bars. Additionally, we offer stair stringers, post supports, post anchors, T-blade post anchors, timber connectors, joist hangers, joist support, fence plates, concrete mix, and rapid set (Bunnings equivalent).

What Timber Coating and Preservation Products Do You Offer?

We stock premium timber applications, such as Intergrain Universal Oil, UltraDeck, Timber Oil, Woca, Timber Stain, Decking Solutions, Wood Putty, Wood Cleaners, Tannin Removal Products, Cutek CD50, Extreme Wood Preservative, and more.

When building a deck, you will need timber battens, batten screws, joists, and decking boards, potentially choosing materials like merbau timber for its durability and aesthetic appeal; don't forget to use wood filler for any imperfections and apply decking oil to enhance and protect the wood, while considering adding wooden planter boxes in rosewood finish to complete the look.

If you have any further questions or need expert advice on selecting the best decking, timber, composite, or fasteners for your project, feel free to contact us!