S-91746A545 8-32 x 1" Thumb Screws

Key Features & Benefits at a Glance

• Effortless manual tightening with a knurled round head for superior grip in high-vibration or gloved-hand applications
• Exceptional corrosion resistance thanks to 18-8 stainless steel construction, ideal for harsh or outdoor environments
• Quick and reliable installation with UNC coarse threading and Class 2A thread fit for smooth engagement and reduced cross-threading risk
• High mechanical strength with 80,000 psi tensile strength and Rockwell B85 hardness for durable, long-lasting fastening
• Space-saving narrow profile design allows use in confined areas where standard tools can't reach
• Secure partial threading ensures precise clamping force control without over-tightening on sensitive components
• Compliant with industry regulations including RoHS 3 and REACH for safe use in electronic and consumer products

Professional Applications & Engineering Value

This 8-32 UNC thumb screw in 18-8 stainless steel is engineered to solve common industrial challenges like tool-free assembly and corrosion-induced failure. The knurled round head provides excellent torque application without specialized tools, making it ideal for frequent access panels, electronic enclosures, and machinery guards. Its coarse thread design accelerates installation in soft materials or blind holes, while the narrow profile fits tight spaces in aerospace, automotive, and telecom equipment. The material's inherent corrosion resistance ensures reliability in humid, chemical, or marine environments, reducing maintenance cycles and downtime. Combined with partial threading, it offers controlled clamping for sensitive instrumentation, preventing damage to threaded inserts or delicate substrates.

Specification Summary & Compliance

This thumb screw features precise Class 2A thread fit per UNC standards, ensuring consistent engagement and interchangeability. Dimensions include a 1" length, 8-32 thread size with coarse spacing, and a 0.25" head diameter. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and material traceability. Manufactured to meet general industry tolerances for thumb screws, it provides reliable performance in applications requiring manual adjustment and corrosion-resistant properties.