S-95942A117 M4 x 12 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
- Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
- Reliable reverse-thread security with left-hand threading to prevent loosening in counter-rotating applications
- High-strength performance delivering 80,000 psi tensile strength and Rockwell B85 hardness for demanding loads
- Secure tool engagement via 2.5mm hex drive, preventing cam-out during installation in confined spaces
- Precision thread fit with Class 6g tolerance ensuring consistent mating with standard metric nuts
- Low-profile rounded head design providing flush mounting while maintaining high torque capability
- Full regulatory compliance meeting RoHS 3 and REACH standards for global industrial applications
Professional Applications & Engineering Value
Engineered for precision applications requiring reverse-thread security, these M4 left-hand metric screws solve critical fastening challenges in rotating machinery and specialized equipment. The 18-8 stainless steel construction delivers superior corrosion resistance in demanding environments, while the coarse 0.7mm pitch threading ensures rapid assembly and vibration resistance. The button head profile with hex drive combines low-profile aesthetics with high torque transmission, making these industrial screws ideal for applications where space constraints and counter-rotation prevention are paramount. Fully threaded design provides consistent clamping force across the entire 12mm length, offering reliable performance in precision mechanical assemblies and maintenance applications.
Specification Summary & Compliance
Manufactured to precise metric thread standards with Class 6g thread fit tolerance, these left-hand button head screws maintain dimensional accuracy for consistent performance. The coarse thread spacing (0.7mm pitch) ensures compatibility with standard metric components. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations guarantees environmental safety and unrestricted use in industrial applications worldwide.
