S-98621A121 M3 Shoulder Screws
Shoulder Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
- Enhanced durability and wear resistance from TiCN coating, extending service life in high-friction applications
- Precise alignment and secure positioning ensured by the 4mm shoulder diameter with tight tolerance control
- High mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness for reliable load-bearing performance
- Easy installation and removal using the 2mm hex socket drive, minimizing tool slippage and damage
- Accurate thread engagement with Class 6g metric coarse threads (M3x0.5mm) for consistent fastening
- Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe use in regulated industries
Professional Applications & Engineering Value
This precision shoulder screw delivers exceptional value in applications requiring exact component alignment and rotational stability. The 18-8 stainless steel base material provides excellent corrosion resistance, while the TiCN coating significantly reduces wear in high-cycle operations. The precisely machined 4mm shoulder diameter with controlled tolerances ensures minimal play in assemblies, critical for machinery, automation systems, and precision instruments. The hex socket head allows for compact installation in confined spaces, and the Class 6g metric threads guarantee reliable fastening in dynamic load conditions. These features make it ideal for industrial applications where vibration resistance, alignment accuracy, and long-term reliability are paramount.
Specification Summary & Compliance
This shoulder screw features M3x0.5mm coarse metric threads with Class 6g tolerance for precise fit. The shoulder diameter is maintained at 4mm with a tolerance of -0.025 to 0 mm, and the shoulder length is 25mm with a tolerance of 0 to 0.05 mm, ensuring high dimensional accuracy. Manufactured to industry standards, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety regulations for industrial use.
