S-90269A134 M4 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and chemical exposure.
• Precise component alignment ensured by the 25mm shoulder with controlled diameter tolerance for smooth bearing or bushing fit.
• High-strength fastening delivers 70,000 psi tensile strength and 35,000 psi shear strength for reliable load-bearing applications.
• Secure, tamper-resistant drive with a 2.5 mm hex socket and knurled head for enhanced grip and torque application.
• Dimensional accuracy with Class 5g6g thread fit and coarse M4 x 0.7mm thread for quick assembly and vibration resistance.
• Consistent mechanical performance from Rockwell B79 hardness, providing excellent durability and wear resistance.
• Global compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated industries.

Professional Applications & Engineering Value

This M4 shoulder screw is engineered to address critical alignment and mounting challenges in precision assemblies. The 316 stainless steel material offers exceptional resistance to corrosion and oxidation, making it suitable for marine, chemical processing, and food-grade equipment. The 25mm shoulder length acts as a precise pivot or spacer, eliminating the need for additional components and reducing assembly time in machinery, robotics, and conveyor systems. The hex socket drive and knurled head provide secure, high-torque installation without slippage, while the coarse metric thread ensures rapid engagement and resistance to loosening under dynamic loads. This design delivers reliable performance in high-stress environments, enhancing the longevity and accuracy of your industrial applications.

Specification Summary & Compliance

This shoulder screw features an M4 x 0.7mm coarse metric thread with a Class 5g6g fit for standard tolerance. The shoulder diameter is 5 mm with a tolerance of -0.072 to -0.01 mm, and the shoulder length is 25 mm with a 0 to 0.25 mm tolerance. It is manufactured from 316 stainless steel with a Rockwell B79 hardness and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards.