S-90318A780 M4 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction for extended service life in harsh industrial environments
• Precise component alignment through controlled 5mm shoulder diameter and 6mm shoulder length with tight tolerances
• Reliable thread engagement ensured by Class 6g thread fit for secure fastening in demanding applications
• High-strength performance with 70,000 psi tensile strength and 35,000 psi shear strength for critical load-bearing applications
• Space-saving low-profile design featuring ultra-low socket head for applications with limited clearance
• Secure installation with 2.5mm hex drive providing positive torque transmission and reduced stripping risk
• Environmental compliance meeting RoHS 3 and REACH regulations for safe use across regulated industries

Professional Applications & Engineering Value

This precision shoulder screw delivers exceptional engineering value in applications requiring exact component positioning and alignment. The 316 stainless steel construction provides outstanding corrosion resistance, making it ideal for chemical processing, marine, and food industry applications where moisture and corrosive agents are present. The Class 6g thread fit ensures reliable engagement in metric threaded components, while the precisely machined shoulder with controlled diameter and length tolerances enables accurate location of mating parts in assemblies. The socket head design with 2.5mm hex drive allows for secure installation in confined spaces, reducing the risk of tool slippage and damage to the fastener. This combination of features solves critical alignment challenges in machinery, precision instruments, and automated equipment where dimensional accuracy is paramount for optimal performance.

Specification Summary & Compliance

This M4 x 0.7mm shoulder screw features Class 6g thread fit per metric standards with precise shoulder dimensions (5mm diameter with -0.025 to 0 mm tolerance, 6mm length with 0 to 0.05 mm tolerance). Manufactured from 316 stainless steel with Rockwell B70 hardness, the fastener delivers 70,000 psi tensile strength and 35,000 psi minimum shear strength. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.