Description
Product Overview
The Lexar Industrial Square Head Bolt is engineered for demanding environments where strength, reliability, and precision are paramount. With a 5/8‑11 thread diameter and a 7‑inch overall length, this bolt delivers a substantial engagement length that maximizes load distribution across mating components. The square head design provides a larger bearing surface compared to traditional hex heads, allowing for higher torque application without stripping the drive socket. Finished in an unplated A307 condition, the bolt retains the natural steel surface, offering excellent weldability and compatibility with a wide range of coatings applied after installation.
Manufactured to ASTM A336 specifications, the bolt meets rigorous standards for tensile strength, impact resistance, and heat treatment. This ensures that each unit can withstand the cyclical stresses typical of heavy‑duty machinery, structural frameworks, and high‑vibration applications. The material composition is selected to balance hardness and ductility, reducing the risk of brittle fracture while maintaining the necessary rigidity for load‑bearing tasks.
Usage
Designed for industrial and scientific settings, this square head bolt excels in applications such as equipment assembly, heavy machinery maintenance, and structural steel construction. Its robust dimensions make it ideal for securing large plates, brackets, and frames where a high clamping force is required. The unplated finish allows the bolt to be easily painted, galvanised, or anodised after installation, giving end‑users flexibility to match specific corrosion‑resistance requirements.
Typical use cases include mounting of conveyor systems, anchoring of hydraulic pistons, and fastening of heavy‑duty gearboxes. The square head provides a stable interface for torque wrenches and impact drivers, reducing the likelihood of slippage during tightening. This bolt is also suitable for retrofit projects where existing components demand a larger head for improved torque transfer without redesigning the surrounding hardware.
Engineers and maintenance professionals appreciate the bolt’s ability to maintain dimensional stability under temperature fluctuations ranging from sub‑freezing conditions to elevated operational heat. Whether used in a manufacturing plant, a processing facility, or an outdoor construction site, the Lexar Square Head Bolt delivers consistent performance, ensuring safety and longevity of the assembled structure.
Why Choose Us
Lexar Industrial has a long‑standing reputation for delivering high‑quality fasteners that meet or exceed industry standards. Our commitment to precision machining, rigorous quality control, and continuous improvement means that each bolt is inspected for thread integrity, head geometry, and material consistency before it leaves the factory. By adhering to ASTM A336 specifications, we guarantee that the mechanical properties of the bolt align with the expectations of engineers who demand reliability under extreme loads.
In addition to product excellence, we provide comprehensive technical support throughout the product lifecycle. Our engineering team is available to assist with selection, installation guidelines, and troubleshooting, ensuring that you achieve optimal results in every application. We also offer flexible order quantities and fast shipping, making it easy for both small workshops and large manufacturers to source the exact number of bolts needed for their projects.
Our after‑sales service includes a straightforward return policy for any defective items, as well as a warranty that covers material and workmanship defects for a period of one year from the date of purchase. This confidence in our product quality reflects our dedication to customer satisfaction and long‑term partnership.
Key Features
- Square head design delivers higher torque capacity and reduces driver slippage.
- Unplated A307 finish provides a clean surface for post‑installation coating or painting.
- Meets ASTM A336 standards for superior tensile strength and impact resistance.
- 7‑inch length and 5/8‑11 thread ensure deep engagement for heavy‑load applications.
- Dedicated technical support and one‑year warranty for peace of mind.
FAQ
What material is the Square Head Bolt made from?
The bolt is fabricated from high‑strength carbon steel that conforms to ASTM A336 specifications, offering a balance of hardness and ductility suitable for demanding industrial applications.
Can this bolt be used in corrosive environments?
Yes. While the bolt is supplied unplated, it can be easily coated with paint, galvanisation, or other protective finishes after installation to enhance corrosion resistance.
Is the square head compatible with standard torque wrenches?
Absolutely. The square head is designed to fit standard square‑drive sockets and impact drivers, providing a secure grip for high‑torque tightening without rounding the head.
What is the recommended torque setting for this bolt?
Torque values depend on the specific application and material being joined. As a general guideline, for a 5/8‑11 thread size in steel, a torque of 70–80 ft‑lb is commonly used, but you should consult your engineering specifications for precise requirements.
Do you offer bulk pricing for large orders?
Yes. Lexar Industrial provides tiered pricing discounts for bulk purchases. Contact our sales team with your quantity requirements to receive a customized quote.
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