S-92356A597 5/16"-18 x 3 1/2" ASME B18.5 Carriage Bolts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and outdoor applications
• Enhanced anti-rotation security provided by the square neck design, preventing bolt spinning during installation and use
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads and mechanical stress
• Excellent durability with Rockwell B55 hardness, maintaining structural integrity through repeated use
• Easy installation and removal with fully threaded UNC coarse threading and right-hand direction
• Precise Class 2A thread fit guarantees consistent engagement and reduces the risk of cross-threading
• Wide rounded head profile distributes clamping force evenly and provides a finished appearance

Professional Applications & Engineering Value

These 18-8 stainless steel carriage bolts deliver exceptional engineering value in demanding industrial settings where corrosion resistance and mechanical reliability are paramount. The combination of fully threaded UNC coarse threading and square neck design addresses critical installation challenges by preventing rotation during tightening, making them ideal for structural connections in wood-to-metal applications, machinery assembly, and construction frameworks. The 3-1/2" length and 5/16"-18 thread size provide versatile fastening solutions for medium to heavy-duty applications, while the rounded head with wide profile ensures secure clamping without surface damage. These industrial carriage bolts maintain performance in environments exposed to moisture, chemicals, and temperature variations, offering long-term reliability for engineering projects requiring consistent fastening integrity.

Specification Summary & Compliance

This carriage bolt features precision Class 2A thread fit with UNC coarse threading (5/16"-18) and right-hand direction, manufactured to exact dimensional requirements. The product meets ASME B18.5 specifications for carriage bolts and demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial applications while maintaining consistent quality standards.