S-99607A263 M2.5 x 4 mm Thumb Screws
Thumb Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Enhanced manual operation with knurled round head design for superior grip and tool-free installation/removal
- Excellent corrosion resistance from 18-8 stainless steel construction, ideal for demanding industrial environments
- Reliable mechanical performance with 80,000 psi tensile strength and Rockwell B85 hardness for durable fastening
- Precision thread engagement with Class 6g fit and coarse 0.45 mm pitch ensuring secure connections
- Optimized collar design featuring flared collar for improved load distribution and seating stability
- Full thread coverage along the 4 mm length maximizes engagement in various material thicknesses
- Regulatory compliance with RoHS 3 and REACH standards for safe use across multiple industries
Professional Applications & Engineering Value
This M2.5 thumb screw delivers exceptional value in applications requiring frequent adjustments or quick access panels. The 18-8 stainless steel composition provides superior corrosion resistance compared to carbon steel alternatives, making it ideal for electronics enclosures, medical devices, and outdoor equipment where environmental exposure is a concern. The knurled round head with flared collar design ensures positive grip even with gloved hands, while the fully threaded construction and Class 6g thread fit maintain consistent clamping force across repeated operations. The coarse thread pitch enables faster installation in softer materials and plastic housings, reducing assembly time in high-volume production environments.
Specification Summary & Compliance
This metric thumb screw features M2.5 x 0.45 mm coarse threads with Class 6g tolerance for precision fit. The fastener maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety standards are met. Manufacturing specifications include right-hand metric thread standards, 4 mm length, and complete threading throughout the shank. The flared collar design (5 mm diameter, 3.5 mm height) provides enhanced bearing surface for improved mechanical performance in industrial applications.
