S-91518A160 M5 x 16 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 for extended service life in harsh environments
- Reliable left-hand thread engagement for specialized applications requiring reverse-threading security and safety
- Precise Class 6g thread fit ensuring consistent mating with nuts and threaded components for vibration-resistant assemblies
- High-strength performance with 70,000 psi tensile strength and Rockwell B70 hardness for demanding mechanical loads
- Streamlined installation featuring 3mm hex drive and 90° countersink angle for flush mounting and efficient tool engagement
- Full thread coverage along the 16mm length providing maximum grip and load distribution in assembled components
- Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial applications
Professional Applications & Engineering Value
Engineered for specialized industrial scenarios where standard right-hand thread direction poses safety or functional risks, these left hand metric flat head screws provide critical reverse-threading solutions. The 18-8 stainless steel material combined with passivated finish delivers exceptional resistance to corrosion and chemical exposure, making them ideal for marine equipment, food processing machinery, and outdoor industrial applications. The M5x0.8 coarse thread with Class 6g thread fit maintains precise tolerances while the 90° countersink angle and flat head profile enable seamless flush mounting in precision machinery, automotive components, and electrical enclosures where protrusion-free surfaces are mandatory.
Specification Summary & Compliance
This metric flat head screw features M5x0.8 coarse thread spacing with Class 6g thread fit per ISO metric standards, ensuring dimensional accuracy and interchangeability. The 16mm length is fully threaded for maximum engagement, while the 3mm hex drive provides secure tool mating. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and material transparency for industrial procurement requirements.
