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Multi-purpose Bulk 5/8"-11 Hex Flange Bolts, Grade 8 Black Phosphate / Oil Holiday Edition [FGNqHfcD]

$43.99 $140.99 -69%

Bulk 5/8"-11 Hex Flange Bolts - High-Grade Durability Discover the excellence of Monster Bolts' Bulk 5/8"-11 Hex Flange Bolts, designed for those who demand the very best in strength and reliability. These Grade 8 black phosphate and oil finished bol

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Bulk 5/8"-11 Hex Flange Bolts - High-Grade Durability

Discover the excellence of Monster Bolts' Bulk 5/8"-11 Hex Flange Bolts, designed for those who demand the very best in strength and reliability. These Grade 8 black phosphate and oil finished bolts are engineered to withstand the toughest conditions, making them perfect for heavy-duty industrial, automotive, and construction projects. With their integrated hex flange design, these bolts ensure optimal load distribution, minimizing the risk of loosening and providing a secure fit. Trust Monster Bolts for superior strength and durability in your applications.

Superior Specifications and High-Tensile Steel

Crafted from premium Grade 8 high tensile strength steel, these hex flange bolts are built to last. The black phosphate and oil finish not only adds a sleek, professional appearance but also offers excellent corrosion resistance, ensuring your bolts remain in top condition even in the most challenging environments. Specifications include a diameter of 5/8" or 0.625", a thread size of 11 TPI, and a 15/16" hex drive for easy installation. These bolts adhere to the stringent ASTM A307 standards, guaranteeing quality and performance.
  • High tensile strength for maximum load-bearing capacity
  • Black phosphate and oil finish for corrosion resistance and aesthetics

Practical Applications and Versatile Use

Whether you're working on a construction project, automotive repairs, or industrial machinery, these hex flange bolts are the ideal solution. Their built-in washer and non-serrated flange design ensure a secure fit and optimal load distribution, making them suitable for a wide range of applications. With their robust construction and corrosion-resistant finish, these bolts are built to last and provide peace of mind. Ideal for professionals and DIY enthusiasts alike, these bolts are the go-to choice for any project that demands reliability and strength.
  • Perfect for heavy-duty industrial, automotive, and construction projects
  • Ensures secure and reliable connections for all applications

What Our Customers Say

January 1, 2026

Absolutely no complaints!

A great item that is very, very dependable.

- Sincere L..

January 1, 2026

Absolutely no complaints!

This is a very smart and a very useful product.

- Pauline D..

January 1, 2026

Absolutely no complaints!

A great product that is very, very reliable.

- Angelina V..

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