S-98621A122 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 wear resistance with TiCN coating, extending service life in high-friction applications
- Excellent corrosion resistance from 18-8 stainless steel construction, ideal for harsh environments
- Precise alignment and positioning with controlled shoulder diameter and length tolerances for stable component mounting
- High-strength performance supporting up to 70,000 psi tensile strength and Rockwell B55 hardness for demanding loads
- Reliable thread engagement with Class 6g metric coarse threads ensuring consistent fastening in industrial assemblies
- Secure tamper-resistant drive using 2.5 mm hex socket for efficient installation with standard tools
- Compliance with environmental regulations including RoHS 3 and REACH, meeting global manufacturing standards
Professional Applications & Engineering Value
This M4 shoulder screw delivers critical precision for machinery, automation systems, and precision instruments where exact component alignment is essential. The 18-8 stainless steel base material provides inherent corrosion resistance, while the TiCN coating significantly enhances surface hardness and reduces galling in dynamic applications. With a Class 6g thread fit and tightly controlled shoulder dimensions, it eliminates play in rotating assemblies, pivots, and linkages, reducing wear and maintenance downtime. The hex socket drive allows for high-torque installation in confined spaces, making it a reliable choice for industrial fastening solutions that demand durability and repeatable performance.
Specification Summary & Compliance
This shoulder screw conforms to metric thread standards with M4x0.7mm coarse threading and Class 6g tolerance. Shoulder diameter is maintained at 5 mm with a tolerance of -0.025 to 0 mm, and shoulder length is 4 mm with 0 to 0.05 mm tolerance for precise fit. The product is manufactured to comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free of restricted hazardous substances for use in global markets.
