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Ships within 48 hours · Estimated delivery Sep 20 - Sep 25
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Description
Hillman 3/8 in. x 3-1/2 in. Zinc-Plated Steel Carriage Bolt, Coarse Thread, 50-PackHillman 3 8 in. x 3 1 2 in. Zinc Plated Carriage Bolts (50) Durable zinc plated steel carriage bolts for fastening wood to wood or metal. Coarse thread, round head design with square neck resists spinning and installs cleanly for a semi flush finish. Key Features: Rugged Construction: Zinc plated steel provides corrosion resistance for indoor and general purpose use Secure Hold: Square neck under the round head locks into wood to prevent turning
Hillman 3/8 in. x 3-1/2 in. Zinc-Plated Carriage Bolts (50)
Durable zinc-plated steel carriage bolts for fastening wood to wood or metal. Coarse-thread, round-head design with square neck resists spinning and installs cleanly for a semi-flush finish.
Key Features:
- Rugged Construction: Zinc-plated steel provides corrosion resistance for indoor and general-purpose use
- Secure Hold: Square neck under the round head locks into wood to prevent turning during tightening
- Clean Finish: Low-profile dome head eliminates the need for a washer in many applications
- Coarse Thread: SAE coarse thread for quick assembly and strong grip
- Project-Ready Pack: 50-piece box in 3/8 in. diameter by 3-1/2 in. length
Specifications Table:
| Specification | Details |
|---|---|
| Diameter | 3/8 inch |
| Length | 3-1/2 inch |
| Material | Steel |
| Finish | Zinc Plated |
| Thread Type | Coarse (SAE) |
| Head Style | Round head with square neck (carriage bolt) |
| Package Quantity | 50 |
| Brand | Hillman |
| Item/SKU | 240174 |
Frequently Asked Questions (FAQ):
Q: What materials can these carriage bolts fasten?
A: They are commonly used to fasten wood to wood or wood to metal frames.
Q: Are nuts and washers included?
A: No, this listing is for carriage bolts only; purchase compatible 3/8 in. nuts and washers separately if needed.
Q: Are these suitable for outdoor use?
A: Zinc plating offers basic rust resistance but is best for interior or sheltered applications; consider hot-dip galvanized or stainless for harsh outdoor environments.
Q: What thread type do they have?
A: SAE coarse thread.
Q: What is the grade and material?
A: Made from steel; grade information varies by source—use for general-purpose fastening.
Polished Utility with a Clean, Minimal Profile
The rounded dome of this carriage bolt brings a subtle, tailored finish to built-ins and custom millwork. I love the way the square neck tucks in, keeping the face pristine while delivering a firm, no-spin hold. Style it on bench slats or garden gate frames for a refined, hardware-as-detail moment. It’s the quiet, functional luxury that completes a thoughtfully crafted piece.
Equip your next build with these zinc-plated carriage bolts and enjoy a clean look with reliable holding power—add the 50-pack to your cart now.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy