3/4 Inch Square Head Bolt

Product Description：

The 3/4” Galvanized Square Head Machine Bolt – ASTM A153 is a durable fastener engineered for outdoor construction, power utility installations, wood structures, and steel frameworks. Its square head design provides strong wrench engagement, while the hot-dip galvanized coating conforms to ASTM A153, offering long-lasting protection against moisture, rust, and harsh environmental conditions.

Product Advantages:

1. Corrosion-Resistant Finish: Hot dip galvanization provides long-lasting outdoor durability.

2. Strong and Reliable: 3/4 inch diameter ensures high mechanical strength and load-bearing.

3. Secure Fit: Square head design allows easy grip with standard tools, minimizing slippage.

4. Standard Compliant: Fully meets ASTM A153 for structural and environmental performance.

Application Scenarios：

1. Utility Pole Hardware & Crossarm Assembly:The bolt passes through crossarm brackets, pole plates, or hardware fittings; nuts are tightened to secure components firmly.

2. Outdoor Timber Structures:Inserted into pre-drilled holes; the square head prevents slipping while the nut secures beams or boards.

3. Steel Frame and Equipment Mounting:Used to anchor steel components; the galvanized surface resists corrosion caused by long-term exposure.

4. Outdoor Infrastructure & Public Utility Projects:Applied in bridges, guardrails, utility brackets, and municipal installations requiring high-strength galvanized fasteners.

5. Marine, Humid, and High-Corrosion Environments:The ASTM A153 coating protects the bolt against salt spray and chemical exposure.
   

Parameter:

Safety & Quality Assurance：

Every bolt is rigorously tested for mechanical strength, coating thickness, and threading precision,ensuring reliable performance even in extreme weather conditions.

FAQ：

Q1: What material is the bolt made from?

A1: High-strength carbon steel.

Q2:Does the square head improve tool grip?

A2:Yes, it provides stable wrench engagement.

Q3: Is this bolt suitable for long-term outdoor use?

A3: Yes, thanks to the ASTM A153 hot-dip galvanized coating.