S-90269A131 M4 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and chemical exposure
• Precise component alignment enabled by the 5mm shoulder diameter with tight tolerance control for reduced assembly vibration
• High mechanical strength with 70,000 psi tensile strength and Rockwell B79 hardness for reliable performance under load
• Secure tamper-resistant fastening through the knurled socket head design, providing enhanced grip during installation
• Consistent thread engagement with Class 5g6g metric coarse threads ensuring reliable mating with nuts and threaded holes
• Streamlined maintenance with RoHS 3 and REACH compliance, meeting stringent international environmental regulations
• Easy installation in confined spaces using standard 2.5mm hex tools, reducing assembly time and labor costs

Professional Applications & Engineering Value

This M4 shoulder screw delivers critical engineering value in precision assembly applications where component alignment and corrosion resistance are paramount. The 316 stainless steel material provides exceptional protection against corrosive agents in marine, chemical processing, and food manufacturing environments. The 12mm shoulder length acts as a precise locating dowel, eliminating component slippage in rotating assemblies, machinery guides, and bearing retention systems. Combined with the Class 5g6g thread fit and coarse 0.7mm pitch, this fastener ensures rapid assembly while maintaining vibration resistance in high-stress applications. The hex socket drive with knurled head texture offers superior torque transmission, making it ideal for automated assembly systems and maintenance-critical equipment.

Specification Summary & Compliance

This precision shoulder screw features M4 x 0.7mm coarse pitch threads with Class 5g6g tolerance per metric standards. Critical dimensions include shoulder diameter (5mm with -0.072 to -0.01 mm tolerance) and shoulder length (12mm with 0 to 0.25 mm tolerance) for precise fitment. Manufactured from 316 stainless steel with Rockwell B79 hardness, 70,000 psi tensile strength, and 35,000 psi minimum shear strength. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial use.