For sturdy, wood-to-wood or wood-to-metal fastenings, a 10-24 carriage bolt is a reliable choice. This guide highlights five well-suited options, explaining who each is best for and why. Ideal buyers include DIY hobbyists, homeowners tackling decking or fencing, and light-industrial projects where a smooth, washer-free head is advantageous.
| Product | Why It’s a Good Fit |
|---|---|
| Hillman 2151 10-24 x 2-Inch Carriage Bolt with Nut, 15-Pack | Best for longer projects needing extra bite in wood or metal; zinc finish resists corrosion. |
| Hillman 2150 10-24 x 1-1/2-Inch Carriage Bolt with Nut, 20-Pack | Better for medium depth joints with ample strength and easier driving tool alignment. |
| Hillman 2152 10-24 x 2-1/2-Inch Carriage Bolt with Nut, 25-Pack | Best for thicker materials or where extra length provides superior holding power. |
| 10-24×1-3/4 Carriage Bolts Stainless Steel 18-8 (25 Pieces) | Best for outdoor or high-moisture environments due to stainless steel. |
| Hillman 2149 10-24 x 1-1/4-Inch Carriage Bolt with Nut, 24-Pack | Best for compact wood-to-wood assemblies with a balanced length. |
Hillman 2151 10-24 x 2-Inch Carriage Bolt with Nut
Brand: Hillman. Features: Carriage bolts are designed to fasten a wooden face to either wood or metal., Flat, smooth head eliminates the need for a washer, Square underside of the head is self-locking to eliminate the need for a driving tool.
Best for: Medium to thick wooden faces or metal-backed panels where a longer bolt provides solid clamping. The self-locking head and lack of washer requirement streamline installation in rough or unfinished surfaces.
Why selected: This length accommodates deeper joints while maintaining a clean head profile, which helps prevent snagging in assemblies. Potential limitation: longer bolts may require pre-drilling guidance for precise alignment.
Hillman 2150 10-24 x 1-1/2-Inch Carriage Bolt with Nut
Brand: Hillman. Features: Carriage bolts are designed to fasten a wooden face to either wood or metal., Flat, smooth head eliminates the need for a washer, Square underside of the head is self-locking to eliminate the need for a driving tool.
Best for: Standard thickness joints where a reliable, easy-to-drive bolt is preferred and a nut secures the joint for steady holding power.
Why selected: The 1-1/2 inch length strikes a balance between grip and ease of installation for common cabinetry or decking tasks. Caution: verify your material thickness to avoid under- or over-penetration.
Hillman 2152 10-24 x 2-1/2-Inch Carriage Bolt with Nut
Brand: Hillman. Features: Carriage bolts are designed to fasten a wooden face to either wood or metal., Flat, smooth head eliminates the need for a washer, Square underside of the head is self-locking to eliminate the need for a driving tool.
Best for: Thick boards or when joining multiple layers where more length provides stronger engagement. Choose this if you need high hold in dense or large panels.
Limitations: Longer bolts may be visible on the exterior; ensure aesthetic considerations align with your project.
10-24 x 1-3/4 Carriage Bolts Stainless Steel 18-8
Brand: Fastener Cart. Features: 18-8 Stainless Steel, QC Inspected, Lot Controlled.
Best for: Outdoor or moisture-prone installations where corrosion resistance is important, such as fencing or garden beds.
Why selected: Stainless steel provides long-term durability in exposure to weather; consider applying a compatible nut and washer if required by your design. Caution: stainless bolts can be harder to drive in through very hard woods without pre-drilling.
Hillman 2149 10-24 x 1-1/4-Inch Carriage Bolt with Nut
Brand: Hillman. Features: Carriage bolts are designed to fasten a wooden face to either wood or metal., Flat, smooth head eliminates the need for a washer, Square underside of the head is self-locking to eliminate the need for a driving tool.
Best for: Shorter joints or lighter-duty connections where compact hardware is advantageous. Better for projects with tight spacing and limited depth.
Limitation: Shorter length may reduce holding power in thicker assemblies; verify material thickness before use.
Buying Guide
Key purchase considerations for 10-24 carriage bolts:
- Material and finish: Zinc-coated bolts resist corrosion in general indoor use; stainless steel (18-8) is superior outdoors or in damp locations.
- Length and diameter: Match bolt length to the total material thickness; ensure a snug fit to maximize clamping force without bottoming out.
- Head shape and fit: Round, flat heads are washer-free in many applications; the square neck helps prevent rotation during installation.
- Quantity and packaging: Bulk packs reduce per-unit cost; consider whether you need nuts and washers included.
- Compatibility: Ensure you have corresponding nuts and, if needed, washers; some bolts include nuts in the package while others do not.
FAQ
- What is a carriage bolt used for?
The bolt’s square neck prevents turning when tightened, making it ideal for wooden joints where a nut is used on the opposite side. - When should I choose stainless steel over zinc?
Choose stainless steel for outdoor or high-moisture environments to resist rust and staining. - How do I determine the correct length?
Measure total material thickness plus clearance for nut engagement; opt for a bolt that penetrates at least halfway into the underlying material for strength. - Do these come with nuts?
Some listings include nuts; verify the product description to confirm whether nuts are included. - Can I use these for metal-to-metal joints?
Carriage bolts work best when one surface is wood or a softer substrate; for metal-to-metal, consider thread engagement and the need for pre-drilled holes or eccentric locking solutions.