S-92957A220 M4 Shoulder Screws

Key Features & Benefits at a Glance

• Effortless manual installation and removal with knurled thumb head and integrated 2.5mm hex drive for superior grip and tool versatility.
• Exceptional corrosion resistance provided by 18-8 stainless steel construction, ensuring long-term reliability in harsh environments.
• Precise component alignment and secure pivoting enabled by the 12mm shoulder with a tight diameter tolerance for a precise fit.
• High mechanical strength and durability with a Rockwell B83 hardness and 70,000 psi tensile strength to withstand significant loads.
• Reliable and consistent thread engagement guaranteed by the M4 x 0.7mm coarse thread with a Class 6g fit for easy assembly.
• Compliance with stringent environmental regulations, being RoHS 3 and REACH compliant for safe use in regulated industries.
• Raised round head profile for comfortable use and improved accessibility in tight spaces.

Professional Applications & Engineering Value

This M4 shoulder screw is engineered to solve critical alignment and assembly challenges in industrial settings. The 12mm shoulder length with its precise diameter acts as a pivot, axle, or spacer, ensuring components are perfectly aligned without the need for additional parts, which reduces assembly time and potential failure points. Manufactured from 18-8 stainless steel, it offers excellent resistance to rust and corrosion, making it ideal for applications in machinery, electronics, and outdoor equipment where environmental factors are a concern. The combination of the knurled thumb head and hex drive provides a dual-fastening option, allowing for quick manual adjustments or secure torque application with a tool. This makes it a versatile metric thumb screw for maintenance panels, adjustable mechanisms, and frequently disassembled prototypes, enhancing operational efficiency.

Specification Summary & Compliance

This precision shoulder screw features an M4 x 0.7mm coarse metric thread with a Class 6g thread fit for standard tolerance. The shoulder has a diameter of 5 mm with a tolerance of -0.025 to 0 mm and a length of 12 mm with a tolerance of 0 to 0.05 mm, ensuring a precise shoulder fit. The product is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations.