S-99607A236 1/4"-20 x 7/8" Thumb Screws

Key Features & Benefits at a Glance

• Enhanced manual grip and torque application with knurled round head and flared collar design for slip-resistant operation
• Superior corrosion resistance and durability thanks to 18-8 stainless steel construction with Rockwell B85 hardness
• High load-bearing capacity with 80,000 psi tensile strength for demanding industrial applications
• Quick and secure fastening with UNC coarse threads and Class 2A fit ensuring reliable engagement
• Full-length threading provides maximum holding power along the entire 7/8" length
• Right-hand thread direction offers standard, intuitive installation for operators
• Compliance with environmental regulations including RoHS 3 and REACH for global market acceptance

Professional Applications & Engineering Value

These 1/4"-20 thumb screws deliver exceptional value in applications requiring frequent manual adjustments without tools. The 18-8 stainless steel construction provides excellent corrosion resistance in harsh environments, while the knurled head texture and flared collar design prevent finger slippage during tightening operations. The UNC coarse threads enable rapid installation in machinery, electronic enclosures, and assembly fixtures where vibration resistance is critical. With fully threaded design and Class 2A thread fit, these thumb screws maintain consistent clamping force in production equipment, test fixtures, and access panels that require regular maintenance access.

Specification Summary & Compliance

This thumb screw features precise 1/4"-20 UNC coarse threads with Class 2A thread fit for standard industrial applications. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental compliance for global distribution. The 7/8" length and fully threaded configuration provide consistent performance across the entire fastener length.