S-95942A123 M5 x 20 mm Left-Hand-Thread Stainless Steel Button Head Hex-Drive Screws
Left-Hand-Thread Stainless Steel Button Head Hex-Drive 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 from 18-8 stainless steel construction, ideal for harsh industrial environments
- Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B85 hardness for reliable performance
- Secure left-hand threading prevents loosening in counter-rotating applications and machinery
- Precise Class 6g thread fit ensures consistent engagement and vibration resistance
- Convenient 3mm hex drive allows for easy installation with standard tools in confined spaces
- Fully threaded 20mm length provides maximum grip and load distribution along the entire fastener
- Regulatory compliance with RoHS 3 and REACH standards for environmentally responsible manufacturing
Professional Applications & Engineering Value
This M5 left-hand thread metric screw delivers critical engineering solutions where standard right-hand threads would loosen under reverse rotation. The 18-8 stainless steel construction provides excellent corrosion resistance for demanding environments including marine, food processing, and chemical applications. The 0.8mm coarse pitch threading combined with Class 6g tolerance ensures rapid assembly and secure fastening in vibration-prone equipment. The rounded button head design with 3mm hex drive offers a low-profile finish while enabling high-torque installation. These industrial fasteners are engineered to maintain integrity in machinery, rotating assemblies, and specialized equipment requiring left-hand thread security.
Specification Summary & Compliance
This metric screw features M5 x 0.8mm coarse thread with Class 6g thread fit per ISO standards, ensuring precise dimensional accuracy. The fully threaded 20mm length provides complete engagement capability. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental responsibility and material safety. The rounded head profile with 9.5mm diameter and 2.75mm height maintains standard dimensions for consistent application across industrial fastener systems.
