S-90185A147 1/2"-13 x 5" ASME B18.5, SAE J429 Carriage Bolts

Key Features & Benefits at a Glance

• Superior anti-rotation security provided by the integrated square neck, preventing the bolt from turning during installation and ensuring a stable, reliable connection.
• Exceptional strength and durability with a Grade 5 classification, offering a high tensile strength of 120,000 psi for demanding industrial applications.
• Enhanced corrosion resistance from the black-oxide steel finish, extending the bolt's service life in various environmental conditions.
• Wide, rounded carriage head design distributes clamping force effectively and provides a finished appearance, reducing surface damage.
• Reliable and easy installation with fully threaded UNC coarse threads and Class 2A fit, ensuring consistent performance and quick assembly.
• Compliance with major industry standards including ASME B18.5 and SAE J429, guaranteeing quality and interoperability in professional settings.
• Environmentally responsible manufacturing as it is RoHS 3 and REACH compliant, meeting strict regulatory requirements for hazardous substances.

Professional Applications & Engineering Value

This Grade 5 Black-Oxide Steel Carriage Bolt is engineered to address common industrial fastening challenges, such as vibration-induced loosening and corrosion. The square neck design locks securely into materials, providing essential anti-rotation in wood, metal, and structural assemblies. Made from robust steel with a black-oxide coating, it resists rust and wear, making it ideal for outdoor machinery, construction frameworks, and agricultural equipment. The 1/2"-13 UNC coarse thread and fully threaded shank ensure strong grip and easy alignment, reducing installation time while maintaining high tensile strength of 120,000 psi. Its compliance with ASME B18.5 standards ensures reliability in heavy-duty applications, from conveyor systems to trailer manufacturing, where safety and longevity are critical.

Specification Summary & Compliance

This carriage bolt features precise Class 2A thread fit and UNC coarse threading (1/2"-13) for consistent engagement. It adheres to ASME B18.5 and SAE J429 specifications, ensuring dimensional accuracy and performance. The bolt is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming it is free from restricted hazardous substances, suitable for global industrial and environmental standards.