S-91241A809 M4 x 12 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 corrosion resistance with 18-8 stainless steel and passivated finish, ensuring long-term reliability in harsh environments.
- Enhanced vibration resistance through the integrated 410 stainless steel spring lock washer, preventing loosening under dynamic loads.
- High mechanical strength with 70,000 psi tensile strength and Rockwell B80 hardness for demanding industrial applications.
- Precise, reliable threading with Class 6g fit and coarse M4 x 0.7mm thread, enabling quick assembly and secure fastening.
- Optimized drive engagement via Phillips No. 2 drive and pan head design, reducing cam-out and improving installation efficiency.
- Full regulatory compliance with ASME B18.13, RoHS 3, and REACH, ensuring safety and environmental standards are met.
- Versatile industrial suitability due to fully threaded design and durable materials, ideal for machinery, electronics, and automotive assemblies.
Professional Applications & Engineering Value
This M4 metric screw with 18-8 stainless steel construction and passivated finish addresses critical industrial challenges, such as corrosion-induced failure and vibration loosening. The inclusion of a spring lock washer made from 410 stainless steel provides consistent clamping force, essential for equipment subjected to dynamic stresses. Its coarse thread and Class 6g tolerance ensure rapid, precise installation in metals and plastics, reducing assembly time while maintaining joint integrity. Commonly used in industrial machinery, automotive components, and electronic enclosures, this pan head Phillips screw delivers reliable performance where corrosion-resistant fastening and regulatory adherence are paramount.
Specification Summary & Compliance
The screw features a Class 6g thread fit per metric standards, with dimensions of M4 x 0.7mm pitch and 12mm length. Manufacturing and quality adhere to ASME B18.13 specifications, ensuring dimensional accuracy and performance consistency. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of hazardous substances and supporting sustainable procurement practices.
