S-97424A650 1/4"-80 x 1 1/2" Thumb Screws

Key Features & Benefits at a Glance

• Superior grip and comfortable operation with black Acetal plastic knurled head design
• Precise thread engagement and vibration resistance thanks to Class 3A ultra fine thread fit
• Excellent corrosion resistance and durability from 18-8 stainless steel construction
• Easy alignment and reduced surface damage with ball tip design for smooth insertion
• High tensile strength reliability supporting up to 60,000 psi in demanding applications
• Enhanced temperature resistance with head rated for maximum 180°F operating conditions
• Regulatory compliance assurance meeting RoHS 3 and REACH environmental standards

Professional Applications & Engineering Value

This 1/4"-80 ultra fine thread thumb screw delivers exceptional performance in precision assembly applications where frequent adjustments are required. The 18-8 stainless steel construction provides reliable corrosion resistance in industrial environments, while the black Acetal plastic knurled head offers superior grip even with gloves or oily conditions. The Class 3A thread fit ensures precise engagement in delicate equipment, and the ball tip design prevents damage to mating surfaces during repeated installations. Ideal for electronic enclosures, optical instruments, and laboratory equipment requiring both manual operation convenience and high-strength performance.

Specification Summary & Compliance

This thumb screw features 1/4"-80 UNS ultra fine threads with Class 3A thread fit for precision applications. The fully threaded design and right-hand thread direction provide consistent engagement. Manufactured to comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental compliance for industrial use. The combination of 18-8 stainless steel shaft and Acetal plastic head delivers optimal performance within specified temperature and strength parameters.