Product Overview
The STANLEY National N179-176 is a 5/16" x 5" carriage bolt, manufactured from durable steel and finished with a zinc plating and satin black paint. This fastener is specifically designed for use with National's 858 Heavy-Duty Ornamental Strap Hinge and 859 Heavy Duty Ornamental T-Hinge, providing a secure and aesthetically matching connection.
- Manufactured from high-quality steel for strength and durability.
- Features a zinc-plated finish with a satin black paint for corrosion resistance and appearance.
- Optimized for secure attachment with National's 858 Heavy-Duty Ornamental Strap Hinge and 859 Heavy Duty Ornamental T-Hinge.
Installation
Carriage bolts are designed for fastening wood to wood, or wood to metal, where the square neck under the domed head prevents the bolt from turning once it is seated. The N179-176 bolt is intended for specific hinge applications.
- Prepare the Mounting Surface: Ensure the surfaces to be joined are clean, flat, and properly aligned. For wood applications, pre-drill holes slightly larger than the bolt's shank diameter but smaller than the head to allow the square neck to seat firmly.
- Insert the Bolt: Pass the carriage bolt through the pre-drilled holes from the side where the domed head is desired. Gently tap the head with a mallet if necessary to fully seat the square neck into the material, preventing rotation during tightening.
- Attach Hinge (if applicable): If using with National's 858 Heavy-Duty Ornamental Strap Hinge or 859 Heavy Duty Ornamental T-Hinge, align the hinge holes with the bolt and pass the bolt through.
- Secure with Nut: Thread a compatible nut (not included) onto the exposed threaded end of the carriage bolt. Use a washer under the nut to distribute the load and prevent damage to the material.
- Tighten: Hand-tighten the nut initially, then use a wrench to tighten securely. Avoid over-tightening, which can strip threads or damage the material. The square neck should prevent the bolt from spinning.
Usage
The N179-176 carriage bolt is designed for applications requiring a strong, secure, and tamper-resistant fastening. Its smooth, domed head provides a finished appearance and reduces the risk of snagging or injury, making it suitable for visible installations. The square neck ensures the bolt remains stationary during tightening, which is particularly useful when access to the bolt head is limited.
Always ensure the bolt length is appropriate for the materials being joined, allowing sufficient thread engagement for the nut and washer.
Maintenance
Carriage bolts generally require minimal maintenance. Regular inspection is recommended to ensure the integrity of the fastening.
- Visual Inspection: Periodically check the bolt and surrounding materials for any signs of loosening, corrosion, or damage.
- Tightness Check: If accessible, verify that the nut remains securely tightened. Re-tighten if any looseness is detected, but do not over-tighten.
- Corrosion: While the zinc plating and satin black finish offer corrosion resistance, extreme conditions may lead to wear. If rust appears, consider cleaning and applying a rust-inhibiting coating if the application allows.
Troubleshooting
Most issues with carriage bolts relate to improper installation or selection.
- Bolt Spins During Tightening: This indicates the square neck is not properly seated. Remove the nut, ensure the pre-drilled hole is correctly sized, and gently tap the bolt head to fully embed the square neck into the material before re-tightening.
- Bolt Not Long Enough: Ensure the bolt length is sufficient to pass through all materials and allow for adequate thread engagement with the nut and washer. If not, a longer bolt is required.
- Threads Stripped: Over-tightening can strip the threads on the bolt or nut. Replace both the bolt and nut if threads are damaged.
- Corrosion: If corrosion is excessive, the bolt's structural integrity may be compromised. Replace corroded bolts with new ones to maintain safety and strength.
Specifications
| Attribute | Detail |
|---|---|
| Model Number | N179-176 |
| Brand | STANLEY National |
| Size | 5/16" x 5" |
| Item Diameter | 0.31 Inches |
| Thread Size | 5/16 |
| Fastener Type | Carriage Bolt |
| Head Type | Carriage (Domed) |
| Head Style | Hex (referring to the nut, but the bolt head is domed) |
| Material | Alloy Steel, Zinc |
| Metal Type | Zinc-Plated Alloy Steel |
| Exterior Finish | Zinc Plated with Satin Black Painted Finish |
| Color | Black |
| Manufacturer Grade | Grade 8 8 |
| Item Hardness | Grade 8 |
| Thread Type | UNC (Unified National Coarse) |
| Thread Style | Right Hand |
| Measurement System | Inch |
| Item Weight | 6 ounces |
| Item Package Quantity | 1 |
| UPC | 038613179172 |
| Manufacturer | Stanley National |
Warranty Information
Specific warranty information for the STANLEY National N179-176 carriage bolt is not provided in the available product data. For details regarding product warranties, please refer to the official STANLEY National website or contact their customer support directly.
Customer Support
Customer support contact details for the STANLEY National N179-176 carriage bolt are not provided in the available product data. For assistance, please visit the official STANLEY National website or consult the retailer from whom the product was purchased.
