S-91694A315 1/2"-13 ASTM A563 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with hot-dipped galvanized steel coating, ideal for harsh industrial environments and outdoor applications.
• Superior load distribution and torque performance due to the extra wide hex profile, reducing the risk of loosening under heavy loads.
• High-strength reliability meeting ASTM A563 Grade DH specifications, ensuring dependable performance in demanding mechanical assemblies.
• Easy installation and compatibility with 1/2"-13 UNC coarse threads and Class 2B fit, providing smooth engagement and reduced cross-threading risks.
• Enhanced durability and longevity from the robust material and external hex drive, allowing for repeated use without degradation.
• Compliance with environmental standards including RoHS 3, making it safe for various industries without harmful substances.
• Optimized for heavy-duty applications such as construction and machinery, thanks to the coarse thread design that resists vibration and shock.

Professional Applications & Engineering Value

This 1/2"-13 UNC hex nut is engineered from hot-dipped galvanized steel to address common industrial challenges like corrosion and mechanical stress. The extra wide profile enhances load distribution, preventing fastener failure in high-vibration settings such as structural frameworks, automotive assemblies, and heavy machinery. Its coarse thread design ensures quick installation and reliable holding power, while the ASTM A563 Grade DH certification guarantees consistent strength for critical applications. Ideal for industrial fasteners in construction, marine, and manufacturing sectors, it combines corrosion resistance with robust performance to extend service life and reduce maintenance costs.

Specification Summary & Compliance

This hex nut features precise Class 2B thread fit and adheres to UNC coarse thread standards with a right-hand direction. Manufactured in compliance with ASTM A563 specifications for Grade DH strength, it includes dimensions of 7/8" width and 31/64" height. The product is RoHS 3 (2015/863/EU) compliant, ensuring it meets environmental regulations for safe use in various industries.