S-91801A220 M4 x 16 mm DIN 965 Stainless Steel Phillips Flat Head Screws
Stainless Steel Phillips 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 316 stainless steel material, ideal for harsh environments like marine or chemical processing.
- Enhanced durability and longevity thanks to a passivated finish that provides an extra protective oxide layer against wear and oxidation.
- Reliable fastening performance with a tensile strength of 70,000 psi and Rockwell B80 hardness, ensuring secure connections under stress.
- Easy installation and removal using a Phillips No. 2 drive, designed for efficient assembly with standard tools.
- Precise thread engagement with Class 6g fit and coarse M4x0.7 mm threading, reducing cross-threading risks and improving hold in various materials.
- Flush mounting capability due to the flat head with a 90° countersink angle, allowing for a smooth, unobtrusive surface finish.
- Compliance with international standards including DIN 965, RoHS 3, and REACH, ensuring safety and environmental responsibility.
Professional Applications & Engineering Value
These M4 metric flat head screws are engineered to address common industrial challenges, such as corrosion in aggressive settings and the need for reliable, long-term fastening. Made from 316 stainless steel with a passivated finish, they resist pitting and rust, making them suitable for applications in marine equipment, food processing machinery, and outdoor structures. The fully threaded design and coarse thread pitch ensure strong grip in soft materials or pre-tapped holes, while the Phillips drive facilitates quick installation. By meeting DIN 965 specifications, these screws provide consistent dimensional accuracy, reducing assembly errors and maintenance needs in industrial screw applications.
Specification Summary & Compliance
This product adheres to precise metric dimensions, including a thread size of M4 with a pitch of 0.7 mm and length of 16 mm, conforming to Class 6g thread fit for reliable tolerance. It complies with DIN 965 standards for flat head screws and is certified RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring no hazardous substances and environmental safety in industrial use.
