S-91273A365 M4 Shoulder Screws
Shoulder Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments.
- Enhanced torque transmission and slip resistance due to the knurled hex socket head design.
- Precise component alignment and pivot points enabled by the 9mm shoulder with controlled diameter tolerance.
- High mechanical strength and durability from Rockwell B55 hardness and 70,000 psi tensile strength.
- Reliable and secure coarse thread engagement with the M4 x 0.7mm thread and Class 5g6g fit for consistent performance.
- Broad application compatibility in machinery and assemblies requiring a right-hand metric thread.
- Compliance with major environmental regulations including RoHS 3 and REACH for global market access.
Professional Applications & Engineering Value
This M4 shoulder screw is engineered to solve critical alignment and fastening challenges in industrial applications. The 18-8 Stainless Steel material provides excellent resistance to rust and corrosion, extending service life in demanding conditions. The integral 9mm shoulder ensures precise location of parts like gears, pulleys, and linkages, reducing wear and misalignment. The coarse thread (0.7mm pitch) allows for quicker assembly and stronger holding power in softer materials or where vibration is a concern. Combined with a hex socket drive and knurled head, it offers secure, tool-friendly installation in confined spaces, making it a reliable choice for automation equipment, precision instruments, and heavy-duty machinery.
Specification Summary & Compliance
This precision shoulder screw adheres to Metric standards with an M4 thread size and 0.7mm coarse pitch. Thread fit is Class 5g6g, ensuring consistent engagement and interchangeability. The shoulder diameter tolerance is -0.04 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, guaranteeing high dimensional accuracy. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming it is free of restricted hazardous substances for safe use in various industries.
