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Singularity Supplies Carriage Bolts

Best Singularity Supplies Carriage Bolts of 2026

Name: M6 Stainless Steel Cup Square Carriage Bolt Pack
Brand: Singularity Supplies

Corey Phillips

Last Updated: 5 Feb 2026

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Carriage bolts by Singularity Supplies are an essential component for various construction and woodworking projects. These sturdy bolts are designed with a smooth, domed head and a square-shaped neck that prevents them from spinning when tightened. They provide a secure and stable connection, making them ideal for applications that require a strong fastening solution. Whether you're building furniture or constructing a deck, Singularity Supplies carriage bolts are a reliable choice to ensure your project is built to last.

At a Glance: Our Top Picks

#TOP 1

M6 Stainless Steel Cup Square Carriage Bolt Pack

9.9

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#TOP 2

M8 Cup Square Carriage Bolt

9.8

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#TOP 3

M8 Cup Square Carriage Bolt

9.6

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Top 9 Singularity Supplies Carriage Bolts

#TOP 1

M6 Stainless Steel Cup Square Carriage Bolt Pack

Singularity Supplies
HXX-HX-201
M6x80 - A2 (10)

M6 (6mm x 80mm) Cup Square Carriage Bolt (Fully Threaded) - Stainless Steel (A2) (Pack of 10)

The M6 Carriage Bolt Pack offers a reliable fastening solution with its mushroom dome head, ensuring a secure grip. Made from durable stainless steel, these bolts resist corrosion, making them ideal for both indoor and outdoor applications. The square neck design provides a locking mechanism that prevents rotation, giving you peace of mind during installation. With metric measurements, these bolts comply with the ISO 965 standard, ensuring a precise fit for your projects.

9.9

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What We Like

Durable stainless steel material
Secure locking neck design
Corrosion-resistant for longevity
Complies with ISO standards

#TOP 2

M8 Cup Square Carriage Bolt

Singularity Supplies
M8x100 - A2 (10)

M8 (8mm x 100mm) Cup Square Carriage Bolt (Fully Threaded) - Stainless Steel (A2) (Pack of 10)

Features

Material: Stainless Steel
Head Type: Mushroom / Dome
Tolerance: ISO 965 Standard

9.8

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#TOP 3

M8 Cup Square Carriage Bolt

Singularity Supplies
GHHHH-109
M8x90 - A2 (10)

M8 (8mm x 90mm) Cup Square Carriage Bolt (Fully Threaded) - Stainless Steel (A2) (Pack of 10)

Features

Material: Stainless Steel
Head Type: Mushroom / Dome
Tolerance: ISO 965 Standard

9.6

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#TOP 4

M8 Cup Square Carriage Bolt

Singularity Supplies
M8x20 - A2 (10)

M8 (8mm x 20mm) Cup Square Carriage Bolt (Fully Threaded) - Stainless Steel (A2) (Pack of 10)

Features

Material: Stainless Steel
Head Type: Mushroom / Dome
Tolerance: ISO 965 Standard

9.4

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#TOP 5

M5 Stainless Steel Cup Square Carriage Bolt

Singularity Supplies
M5x45 - A2 (10)

M5 (5mm x 45mm) Cup Square Carriage Bolt (Partially Threaded) - Stainless Steel (A2) (Pack of 10)

The Singularity Supplies Carriage Bolt is a reliable choice for your fastening needs. With its mushroom/dome head type, it provides a sleek finish while ensuring a secure grip. Made from stainless steel, it offers excellent corrosion resistance, making it ideal for outdoor use. The square neck design locks into place, preventing any rotation during installation, which adds convenience. Additionally, it meets ISO 965 standards for tolerance, ensuring consistent quality that you can trust.

9.3

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What We Like

Corrosion-resistant stainless steel
Secure square neck design
ISO 965 standard tolerance
Sleek mushroom head type
Pack of 10 for value

#TOP 6

M6 Cup Square Carriage Bolt

Singularity Supplies
HXX-HX-192
M6x55 - A2 (10)

M6 (6mm x 55mm) Cup Square Carriage Bolt (Fully Threaded) - Stainless Steel (A2) (Pack of 10)

Features

Material: Stainless Steel
Head Type: Mushroom / Dome
Tolerance: ISO 965 Standard

9.1

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#TOP 7

M5 Cup Square Carriage Bolt

Singularity Supplies
M5x50 - A2 (20)

M5 (5mm x 50mm) Cup Square Carriage Bolt (Partially Threaded) - Stainless Steel (A2) (Pack of 10)

Features

Material: Stainless Steel
Head Type: Mushroom / Dome
Tolerance: ISO 965 Standard

8.9

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#TOP 8

M6 Cup Square Carriage Bolt

Singularity Supplies
HXX-HX-201
M6x12 - A2 (10)

M6 (6mm x 12mm) Cup Square Carriage Bolt (Fully Threaded) - Stainless Steel (A2) (Pack of 10)

Features

Material: Stainless Steel
Head Type: Mushroom / Dome
Tolerance: ISO 965 Standard

8.9

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#TOP 9

M10 Cup Square Carriage Bolt

Singularity Supplies
M10x25 - A2 (10)

M10 (10mm x 25mm) Cup Square Carriage Bolt (Fully Threaded) - Stainless Steel (A2) (Pack of 10)

Features

Material: Stainless Steel
Head Type: Mushroom / Dome
Tolerance: ISO 965 Standard

8.9

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Editor's Notes

During our Singularity Supplies carriage bolt research, we found 9 Singularity Supplies carriage bolt products and shortlisted 9 quality products. We collected and analyzed 2,714 customer reviews through our big data system to write the Singularity Supplies carriage bolts list. We found that most customers choose Singularity Supplies carriage bolts with an average price of £20.00.

The Singularity Supplies carriage bolts are available for purchase. The top 9 picks range in price from a low of £5.00 to a high of £5.00, find the one that fits your budget.

Written by

Corey Phillips

Corey Philips is an electrician and lighting expert. He graduated from the University of Birmingham in 2012 with a Bachelor's degree in electrical and electronics engineering. Corey is a specialist contractor in lights. He sells and installs and recommends lights and lamp sheds, and other lights accessories. Aside from that, Corey is vast in installing and maintaining electrical appliances like air conditioners, water heaters, and the likes.