S-90211A362 5/8"-11 x 1 3/4" SAE J429 Left-Hand Threaded High-Strength Steel Hex Head Screws
Left-Hand Threaded High-Strength Steel Hex Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Maximum load-bearing capacity with 150,000 psi tensile strength and Grade 8 classification for demanding industrial applications
- Superior corrosion resistance provided by zinc yellow-chromate plating, extending service life in harsh environments
- Precise thread engagement with Class 3A fit and UNC coarse threading ensuring reliable fastening in left-hand applications
- Enhanced installation efficiency through external hex drive design that accommodates standard tools and high torque requirements
- Consistent hardness performance with Rockwell C33 rating maintaining structural integrity under repeated stress
- Full threading coverage along the 1 3/4" length provides maximum grip and load distribution
- Industry-standard compliance with SAE J429 specifications guaranteeing quality and interchangeability
Professional Applications & Engineering Value
This Grade 8 hex head screw delivers exceptional engineering value for machinery, equipment assembly, and structural applications requiring left-hand threading. The steel construction with Rockwell C33 hardness prevents deformation under high vibration and load conditions, while the zinc yellow-chromate plating provides critical corrosion protection in industrial environments. The UNC coarse thread with Class 3A fit ensures rapid installation and secure fastening in applications where counter-clockwise rotation provides tightening action. The external hex drive accommodates high torque applications common in maintenance, manufacturing, and heavy equipment sectors, making it ideal for situations requiring disassembly of rotating components or specialized fastening configurations.
Specification Summary & Compliance
This fastener features precision 5/8"-11 UNC coarse threads with Class 3A thread fit for superior dimensional accuracy. The 1 3/4" length is fully threaded for maximum utility. Manufactured from high-strength steel with Rockwell C33 hardness and 150,000 psi tensile strength, this screw complies with SAE J429 specifications for Grade 8 fasteners. The zinc yellow-chromate plating meets industry standards for corrosion resistance while maintaining the mechanical properties required for heavy-duty applications.
