S-92356A553 1/4"-20 x 2 3/4" ASME B18.5 Carriage Bolts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction for long-lasting performance in harsh environments
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness for heavy-duty applications
• Reliable anti-rotation performance through square neck design that prevents spinning during installation and use
• Easy installation and removal with coarse UNC threading and Class 2A fit for quick assembly operations
• Full thread engagement capability allowing maximum load distribution across the entire bolt length
• Industry-standard compatibility meeting ASME B18.5 specifications for reliable interchangeability
• Environmental compliance assurance with RoHS 3 and REACH compliance for global market acceptance

Professional Applications & Engineering Value

These 18-8 Stainless Steel carriage bolts deliver exceptional engineering value in demanding industrial applications where corrosion resistance and structural integrity are paramount. The square neck design provides critical anti-rotation performance that prevents loosening in high-vibration environments, making them ideal for heavy machinery assembly, structural framing, and transportation equipment. The fully threaded UNC coarse thread configuration ensures maximum thread engagement and load distribution, while the Class 2A fit guarantees consistent installation torque and clamping force. With their rounded head profile and 2 3/4" length, these fasteners offer both functional reliability and safety in applications requiring smooth, snag-free surfaces.

Specification Summary & Compliance

This 1/4"-20 UNC carriage bolt maintains precise dimensional accuracy with Class 2A thread fit per ASME B18.5 standards, ensuring reliable interchangeability and performance. The manufacturing process adheres to strict quality controls, producing consistent square neck dimensions (0.16" length, 0.26" width) and head specifications (0.594" diameter, 0.145" height). Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms environmental responsibility and global market acceptability, while the right-hand thread direction and coarse thread spacing provide industry-standard compatibility for diverse assembly requirements.