S-90181A151 6-32 x 3/4" Thumb Screws
Thumb Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Material & Strength
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Key Features & Benefits at a Glance
- Easy manual operation with spade head design for quick tool-free tightening and adjustment
- Superior durability with Rockwell B55 hardness steel resisting wear in frequent-use applications
- High load capacity with 40,000 psi tensile strength for secure fastening in demanding environments
- Reliable thread engagement with Class 2A fit ensuring consistent performance and reduced cross-threading risks
- Versatile coarse threading (UNC) providing excellent grip in various materials and faster installation
- Full thread coverage along the 3/4" length for maximum holding power across the entire fastener
- Right-hand thread orientation following industry standards for intuitive installation and removal
Professional Applications & Engineering Value
This 6-32 UNC thumb screw delivers exceptional engineering value where rapid access and secure fastening are critical. The steel construction with Rockwell B55 hardness provides excellent resistance to deformation, making it ideal for industrial equipment panels, electronic enclosures, and machinery requiring frequent maintenance access. The spade head design offers superior grip for manual operation without tools, while the coarse UNC threading ensures reliable performance in materials where fine threads might strip. With fully threaded coverage and Class 2A thread fit, this thumb screw maintains consistent clamping force and prevents loosening in vibration-prone applications, solving common assembly and maintenance challenges in manufacturing, electronics, and automotive sectors.
Specification Summary & Compliance
This thumb screw features precision 6-32 UNC coarse threads with Class 2A fit for consistent dimensional accuracy. The 0.138" thread diameter and 3/4" length provide standardized compatibility across applications. Manufactured from steel with Rockwell B55 hardness and 40,000 psi tensile strength, this fastener meets industry standards for mechanical performance. The right-hand thread direction and fully threaded construction comply with ASME/ANSI specifications for thumb screw applications.
