S-94050A220 1/4"-20 x 2" 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-lasting performance in harsh marine and outdoor environments
- Secure anti-rotation locking provided by the integrated square neck, preventing bolt spin during installation and use
- Wide rounded head profile distributes clamping force effectively and reduces surface damage
- Full threading (1/4"-20 UNC) along the entire 2" length offers versatile fastening depth and maximum grip
- Precision Class 2A thread fit ensures smooth assembly and reliable performance in industrial applications
- Compliance with ASME B18.5 standards guarantees consistent quality, dimensional accuracy, and interchangeability
- RoHS 3 and REACH compliant construction meets stringent environmental and safety regulations for global sourcing
Professional Applications & Engineering Value
These silicon bronze carriage bolts deliver critical engineering value in corrosive environments where standard steel fasteners fail. The marine-grade silicon bronze alloy provides inherent resistance to saltwater, chemicals, and atmospheric corrosion, significantly extending service life in marine hardware, dock construction, and coastal infrastructure. The combination of fully threaded UNC coarse threads and the square neck design solves common industrial challenges: the coarse thread ensures rapid installation and superior holding power in soft materials, while the square neck securely locks into the mating material, preventing rotation during nut tightening—a vital feature for maintenance-free assemblies. This makes them an indispensable corrosion-resistant bolt solution for demanding outdoor and underwater applications.
Specification Summary & Compliance
This 1/4"-20 x 2" carriage bolt features a Class 2A thread fit per unified inch standards, ensuring proper clearance and assembly ease. Manufacturing and dimensional conformance adhere to the ASME B18.5 standard. The product is verified as RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming the absence of restricted hazardous substances and supporting responsible sourcing for industrial and export markets.
