Double Arming Bolt

Product Description：

The Hot Dip Galvanized to ASTM A153 Double Arming Bolt is a heavy-duty fastener designed for securing double crossarms and related fittings on utility poles. Manufactured from high-strength steel and hot dip galvanized in accordance with ASTM A153, this double arming bolt provides excellent corrosion resistance and long-term reliability in outdoor power distribution environments.

This ASTM A153 galvanized double arming bolt is widely used in overhead line construction to ensure stable alignment and firm connection of pole line hardware under mechanical load and harsh weather conditions.

Product Advantages:

1. Hot dip galvanized to ASTM A153 for superior corrosion resistance

2. High-strength steel for heavy mechanical loads

3. Designed for double crossarm installations

4. Secure and stable fastening for pole line hardware

5. Suitable for long-term outdoor exposure

6. Compatible with standard utility pole fittings
   

Application Scenarios：

The Double Arming Bolt is widely applied in power transmission and distribution projects. It is ideal for connecting crossarms to utility poles, especially in overhead line systems. Thanks to its corrosion-resistant coating and strong mechanical properties, it performs reliably in environments such as:

1. Overhead power distribution pole lines

2. Double crossarm installations on utility poles

3. Transmission and distribution line construction projects

4. Pole line reinforcement and structural upgrading

5. Outdoor electrical infrastructure systems

How to Apply ：

• Position the ASTM A153 double arming bolt through the aligned holes of the double crossarms and pole hardware.

• Install washers and nuts on both sides to ensure even load distribution.

• Tighten the bolt securely to achieve a firm and stable connection.

• Inspect alignment and fastening condition after installation.

• Use with other galvanized pole line hardware for best corrosion protection.

Parameter:

Other lengths and 1 inch diameter machine bolts are available. 304 & 316 Stainless Steel square machining bolts are available per the request. When you need Square Machine Bolts,refer to above our catalog. We offer them in a full selection of sizes, provide the length, diameter or part number to get a quote on these bolts, leave your message, or send us an email. You can also call us to get answers to your questions and place your order.

Safety & Quality Assurance：

1. Manufactured from selected high-strength steel materials

2. Hot dip galvanized strictly according to ASTM A153

3. Mechanical strength and coating quality inspected before shipment

4. Consistent quality suitable for utility-grade applications

5. Designed for long service life in outdoor environments

FAQ：

Q1: What is a double arming bolt used for?

A1: It is used to secure double crossarms and related hardware on utility poles.

Q2: Is this double arming bolt hot dip galvanized?

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

Q3: Is it suitable for outdoor use?

A3: Yes, it is designed for long-term outdoor power line applications.

Q4: Can it be used with standard pole line hardware?

A4: Yes, it is compatible with standard utility pole fittings.

Q5: Does the bolt require special maintenance?

A5: No, minimal maintenance is required under normal conditions.

Other lengths and 1 inch diameter machine bolts are available. 304 & 316 Stainless Steel square machining bolts are available per the request. When you need Square Machine Bolts,refer to above our catalog. We offer them in a full selection of sizes, provide the length, diameter or part number to get a quote on these bolts, leave your message, or send us an email. You can also call us to get answers to your questions and place your order.