S-90941A113 4-40 x 1/2" ASME B18.3 Titanium Button Head Hex-Drive Screws
Titanium Button Head Hex-Drive 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
- Exceptional strength-to-weight ratio with Grade 5 Titanium construction, providing superior durability without adding unnecessary bulk to assemblies
- High tensile strength of 130,000 psi ensures reliable performance under extreme mechanical stress and vibration
- Rockwell C36 hardness rating delivers excellent wear resistance and maintains thread integrity through repeated installations
- Fully threaded UNC coarse pattern enables faster installation and superior grip in various materials
- Class 2A thread fit guarantees precise dimensional accuracy for consistent, secure fastening operations
- 1/16" hex drive with rounded button head combines easy installation with a low-profile, aesthetically pleasing finish
- Comprehensive regulatory compliance including ASME B18.3, RoHS 3, and REACH ensures suitability for global industrial applications
Professional Applications & Engineering Value
These Grade 5 Titanium rounded head screws deliver critical advantages in demanding environments where corrosion resistance, high strength-to-weight ratios, and thermal stability are paramount. The 4-40 UNC coarse thread configuration provides excellent holding power in softer materials and enables rapid assembly in production environments. With 130,000 psi tensile strength and Rockwell C36 hardness, these hex drive screws maintain integrity in high-vibration applications common in aerospace, medical equipment, and precision instrumentation. The fully threaded design ensures maximum engagement depth, while the rounded button head profile offers both aesthetic appeal and reduced snag potential in confined spaces.
Specification Summary & Compliance
Manufactured to precise Class 2A thread fit tolerances with 4-40 UNC coarse thread specifications. These 1/2" length screws comply with ASME B18.3 manufacturing standards and meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring both dimensional accuracy and regulatory compliance for global industrial applications.
