S-91241A810 M4 x 16 mm ASME B18.13 Stainless Steel Pan Head Phillips Screws with Spring Lock Washer
Stainless Steel Pan Head Phillips Screws with Spring Lock Washer
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Washer & Nut
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior vibration resistance with an integrated 410 stainless steel spring lock washer, preventing loosening in dynamic applications.
- Excellent corrosion resistance from 18-8 stainless steel construction and a passivated finish, ensuring long-term durability in harsh environments.
- High mechanical strength with a tensile strength of 70,000 psi and Rockwell B80 hardness for reliable performance under load.
- Easy and secure installation using a standard No. 2 Phillips drive and a rounded pan head design for straightforward torque application.
- Precise and reliable threading with a fully threaded M4 x 0.7mm coarse thread and Class 6g fit, ensuring consistent engagement and holding power.
- Compliance with industry standards including ASME B18.13, RoHS 3, and REACH, guaranteeing quality and environmental safety for professional use.
- Versatile fastening solution combining a screw and lock washer in one unit, reducing assembly time and improving joint integrity.
Professional Applications & Engineering Value
This M4 rounded head screw is engineered to address common industrial challenges such as vibration-induced loosening and corrosion in demanding environments. The combination of 18-8 stainless steel and a passivated finish provides exceptional resistance to rust and chemical exposure, making it ideal for machinery, automotive assemblies, and outdoor equipment. The integrated spring lock washer of 410 stainless steel maintains clamp force under dynamic loads, preventing failures in applications like motor mounts or conveyor systems. With a fully threaded coarse metric thread and Phillips drive, it ensures quick, secure installations, reducing maintenance needs and enhancing operational reliability in mechanical and structural fastening tasks.
Specification Summary & Compliance
This screw features precise M4 x 0.7mm coarse threads with a Class 6g fit for standard metric tolerances, and is fully threaded for consistent performance. It meets ASME B18.13 specifications for dimensional accuracy and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global industrial use.
