S-91518A180 M6 x 20 mm Left-Hand-Thread Stainless Steel Hex-Drive Flat Head Screws
Left-Hand-Thread Stainless Steel Hex-Drive Flat 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
- Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments
- Enhanced assembly precision through Class 6g thread fit, ensuring reliable fastening in demanding applications
- High-strength performance delivering 70,000 psi tensile strength and Rockwell B70 hardness for durable, long-lasting connections
- Efficient installation and removal with 4mm hex drive and left-hand thread direction for specialized assembly requirements
- Optimal flush mounting thanks to the standard flat head profile and 90° countersink angle, providing a clean, secure finish
- Full regulatory compliance with RoHS 3 and REACH standards, ensuring safety and environmental responsibility in global markets
- Versatile fully threaded design for maximum grip and uniform load distribution across the entire 20mm length
Professional Applications & Engineering Value
Engineered for precision and durability, these M6 left-hand thread flat head screws address critical challenges in industrial assembly where reverse-thread mechanisms prevent loosening from counter-clockwise motion. The 18-8 stainless steel material, combined with a passivated finish, provides exceptional resistance to corrosion and oxidation, making them suitable for automotive, machinery, and outdoor equipment applications. The 4mm hex drive ensures secure tool engagement, reducing slippage during high-torque installations. With a coarse 1mm thread pitch and Class 6g thread fit, these screws offer quick assembly and reliable performance in vibration-prone environments, minimizing maintenance needs and downtime.
Specification Summary & Compliance
This product features a Metric M6 x 1mm thread with Class 6g tolerance for precise fit, left-hand thread direction, and fully threaded 20mm length. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards for industrial use.
