S-90306A338 1/2"-13 x 2" Left-Hand Threaded 18-8 Stainless Steel Hex Head Screws
Left-Hand Threaded 18-8 Stainless 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
- Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
- Superior tensile strength rated at 70,000 psi for reliable performance under heavy loads
- Left-hand threading provides secure fastening in applications where right-hand threads may loosen from rotational forces
- Full 2" threading ensures maximum grip length and superior holding power across the entire fastener
- Class 2A thread fit offers optimal clearance for easy assembly while maintaining secure connections
- External hex drive design allows for high-torque installation with standard wrenching tools
- Comprehensive compliance with RoHS 3 and REACH regulations for environmentally responsible manufacturing
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these left-hand thread hex head screws provide critical solutions where reverse-threading requirements prevent loosening from counter-rotational forces. The 18-8 stainless steel composition delivers excellent corrosion resistance in challenging environments while maintaining Rockwell B70 hardness for durability. The 1/2"-13 UNC coarse threading with Class 2A fit ensures reliable engagement in various materials, from machinery components to structural assemblies. The external hex drive facilitates high-torque installation, making these fully threaded screws ideal for maintenance applications, rotating equipment, and industrial machinery where vibration resistance is paramount.
Specification Summary & Compliance
This heavy-duty hex head screw features precise 1/2"-13 UNC left-hand threads with Class 2A thread fit tolerance, ensuring proper clearance and engagement. Manufactured from 18-8 stainless steel with Rockwell B70 hardness and 70,000 psi tensile strength. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest industry standards for hazardous substance restrictions.
