Hillman Zinc-Plated 3/8 × 5-1/2 in Carriage Bolts (50-Pack)
50 per pack
$47.99 /pack
$0.96 per piece · 50 per pack
Orders start at $399. Combine any items to reach it.
Sold by the pack of 50. We round up and set the quantity for you.
- 1 pack · 50 pieces
- $47.99
- Standard delivery
- $49.99 per order
- Sales tax
- Added at checkout
All orders are subject to approval.
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Standard delivery$49.99
Per order, added in your cart. We deliver to the 48 contiguous states.
Availability confirmed by the desk at approval, with your delivery date. Shipping policy · Returns
Goes with
Fasteners
Details & specifications.
From the maker · the maker’s description
Durable zinc-plated steel carriage bolts ideal for wood and metal fastening. Coarse-thread Grade 2 bolts with round heads provide smooth, secure installs in structural and DIY projects.
Streamlined Strength with Polished Simplicity
These zinc-plated carriage bolts bring a refined, industrial clarity to any build—sleek round heads that read as clean, intentional hardware. The crisp metallic finish punctuates wood grains and painted surfaces with a subtle glint. Pair them with matte black brackets for contrast or echo the shine with brushed nickel accents. A small detail that elevates cabinetry, furniture, and architectural moments into a quietly luxurious statement.
Upgrade your projects with durable, zinc-plated Hillman carriage bolts—add this 50-pack to your cart today.
- SKU
- 57187
- Length
- 5-1/2 in
- Per pack
- 50 per pack
- Finish
- Zinc-Plated
- Head
- Round
- Material
- Steel
- Diameter
- 3/8 in
- Thread Type
- Coarse (UNC)
- Grade
- Grade 2
- Unit of Measurement
- SAE
- Packaging Type
- Boxed
- Number in Package
- 50
- Model
- 57187
- Brand
- Hillman
- Product Type
- Carriage Bolt
- Weight
- 7.9 lbs
- Full product name
- Hillman 3/8 in. x 5-1/2 in. Zinc-Plated Steel Carriage Bolt, 50-Pack
Key features
- Zinc-Plated Protection: Corrosion-resistant finish for indoor/outdoor use
- Strong Steel Construction: Grade 2 steel suitable for general fastening applications
- Clean Round Head Design: Smooth, low-profile head for a finished look
- Coarse Threads: Reliable grip in wood and metal with standard SAE threading
- Bulk Value Pack: 50 boxed bolts for jobsite or workshop efficiency
Specifications are provided by the manufacturer. Brand names are trademarks of their owners.
Guide
Choosing the fastener
- 1
Outdoors and treated lumber
Use hot-dip galvanized, stainless or exterior-coated fasteners, and follow the board maker’s fastener recommendation.
- 2
Price per piece
The pack price divided by the pieces in the pack, both as listed.
- 3
Drive
Star (Torx), square, Phillips or hex, as the listing states. Match the bit you carry.
Use standard 3/8 in. coarse-thread (UNC) nuts and washers.