S-94050A335 5/16"-18 x 3" ASME B18.5 Carriage Bolts
Carriage Bolts
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Basic Information
Head Parameters
Neck & Shank Parameters
Dimension Parameters
Thread Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Exceptional corrosion resistance for long service life in harsh environments thanks to marine-grade silicon bronze construction
- Superior anti-rotation performance ensured by the integrated square neck that prevents spinning during installation
- Reliable coarse threading with UNC 5/16"-18 pattern provides excellent grip and faster assembly in various materials
- Wide, rounded head design offers superior bearing surface and reduces risk of surface damage
- Full threading along the 3" length allows for maximum adjustability and secure fastening at any point
- Precision Class 2A thread fit ensures consistent performance and compatibility with standard nuts
- Regulatory compliance ready meeting ASME B18.5 standards and environmental regulations for global industrial use
Professional Applications & Engineering Value
This silicon bronze carriage bolt delivers critical performance advantages in demanding applications where corrosion resistance and vibration resistance are paramount. The square neck design mechanically locks into installation materials, eliminating rotation during tightening - a crucial feature for wood-to-metal connections and structural assemblies. With its UNC coarse thread and fully threaded 3" length, it provides superior pull-out resistance in soft materials and allows for flexible positioning. The marine-grade silicon bronze composition offers exceptional resistance to saltwater corrosion, making it ideal for marine applications, coastal structures, and industrial environments exposed to moisture and chemicals. The rounded head profile distributes clamping force evenly while the right-hand thread ensures standard tool compatibility for efficient installation.
Specification Summary & Compliance
This carriage bolt features precision Class 2A thread fit with UNC 5/16"-18 coarse threading and meets ASME B18.5 dimensional standards. The bolt maintains a screw diameter of 0.313" with a 0.719" head diameter and 3" full length. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures suitability for regulated industrial markets and international supply chains.
