S-99607A277 M4 x 12 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
- Superior hand-tightening grip with knurled round head design for secure tool-free operation in tight spaces
- Excellent corrosion resistance from 18-8 stainless steel construction, ideal for demanding industrial environments
- Reliable thread engagement with Class 6g metric coarse threads ensuring consistent fastening performance
- Enhanced load distribution through flared collar design that prevents surface damage during installation
- High mechanical strength with 80,000 psi tensile strength and Rockwell B85 hardness for long-term durability
- Full-threaded versatility allowing installation at any point along the 12mm length for flexible positioning
- Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe use across industries
Professional Applications & Engineering Value
This M4 thumb screw delivers exceptional value in applications requiring frequent adjustments or tool-free maintenance. The 18-8 stainless steel construction provides reliable corrosion resistance for electronics enclosures, machinery guards, and laboratory equipment exposed to moisture or chemicals. The knurled head texture combined with the flared collar design creates a secure anti-slip surface while distributing clamping force to prevent damage to sensitive materials. With its coarse thread pitch and Class 6g thread fit, this fully threaded fastener ensures quick installation and removal cycles, reducing maintenance downtime in industrial assembly lines, automation systems, and precision instrument manufacturing where repeated access is necessary.
Specification Summary & Compliance
This metric thumb screw features M4 x 0.7 mm coarse threads with Class 6g thread fit tolerance according to ISO metric standards. The fastener maintains precise dimensional accuracy with 11mm head diameter, 4mm head height, and 12mm overall length. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and chemical substance restrictions are met for global industrial applications.
