S-91263A951 M16 x 40 mm DIN 7991 Alloy Steel Hex Drive Flat Head Screws
Alloy 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
- Exceptional durability with Class 10.9 strength grade and 120,000 psi tensile strength for reliable performance in high-stress applications
- Superior corrosion resistance through zinc-plated alloy steel construction, extending service life in harsh environments
- Precise installation control with 10mm hex drive and flat head design for flush mounting and secure fastening
- Optimized thread engagement with M16 coarse pitch (2mm) and Class 6g thread fit ensuring quick assembly and vibration resistance
- Full-threaded design providing maximum grip length and load distribution across the entire fastener
- Industry-standard compliance meeting DIN 7991 specifications for consistent quality and interchangeability
- Environmental responsibility with RoHS 3 and REACH compliance for safe use in regulated industries
Professional Applications & Engineering Value
This M16 flat head screw delivers critical engineering solutions for heavy-duty applications where high tensile strength and corrosion resistance are paramount. The zinc-plated alloy steel construction provides essential protection against environmental degradation in construction, manufacturing, and industrial equipment. The fully threaded metric design with coarse 2mm pitch ensures rapid installation and maintains secure connections under vibration and dynamic loads. With its flat head profile and hex drive configuration, it enables flush mounting in countersunk applications while providing superior torque transmission. These Class 10.9 fasteners are engineered to withstand extreme mechanical stresses in structural assemblies, machinery frames, and heavy equipment where failure is not an option.
Specification Summary & Compliance
This metric fastener features precise Class 6g thread fit tolerances with M16 x 2mm coarse thread spacing and right-hand threading. Manufactured to DIN 7991 specifications with Rockwell C32 hardness, it ensures dimensional consistency and mechanical reliability. 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 and chemical safety.
