Spool Bolt

Product Description：

The Hot Dip Galvanized ASTM A153 Spool Bolt is a critical fastening component used in pole line hardware and overhead line fittings. This ASTM A153 galvanized spool bolt is specifically designed to securely mount spool insulators and related accessories on utility poles, ensuring reliable mechanical support for power distribution and telecommunication lines.

Manufactured from high-quality carbon steel and finished with hot dip galvanization in accordance with ASTM A153, this hot dip galvanized spool bolt provides excellent corrosion resistance, making it suitable for long-term outdoor use in harsh environments such as coastal areas, high humidity regions, and industrial zones.

Product Advantages：

1. ASTM A153 hot dip galvanized coating

2. Heavy duty steel construction

3. Secure mounting for spool insulators

4. Excellent resistance to rust and weathering

5. Stable performance under mechanical load

6. Compatible with standard pole line hardware

7. Long service life with minimal maintenance
   

Application Scenarios：

1. Utility pole spool insulator installation

2. Overhead power distribution lines

3. Telecommunication pole line systems

4. Rural and urban electrical infrastructure projects

5. Substation auxiliary line support structures

How to Apply ：

• Select the correct hot dip galvanized ASTM A153 spool bolt according to pole type and spool insulator size.

• Insert the spool bolt through the mounting hole of the spool insulator.

• Position the bolt securely on the pole surface or crossarm.

• Tighten with matching nut and washer to ensure firm fixation.

• Inspect the installation to confirm alignment and load stability.

Parameter:

Safety & Quality Assurance：

1. Manufactured from certified steel materials

2. Hot dip galvanized strictly to ASTM A153 standard

3. Dimensional and mechanical strength inspection

4. Corrosion resistance tested for outdoor use

5. Consistent quality for utility-grade applications
   

FAQ：

Q1: What is a spool bolt used for?

A1: It is used to mount spool insulators and related hardware on utility poles.

Q2: Does this spool bolt comply with ASTM standards?

A2: Yes, it is hot dip galvanized according to ASTM A153.

Q3: Is the spool bolt suitable for outdoor installation?

A3: Yes, the galvanized coating provides excellent corrosion protection.

Q4: Can it be used in coastal or high-humidity areas?

A4: Yes, it is designed for harsh outdoor environments.

Q5: Does the spool bolt support long-term mechanical load?

A5: Yes, it offers stable performance under continuous load.