S-98057A531 10-32 x 1/4" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh environments and extended service life
• Precise, secure fastening ensured by the fine 10-32 UNF thread and Class 2A fit, minimizing the risk of loosening under vibration
• Excellent torque transmission and minimal part slippage from the slotted drive and cup point tip design
• Reliable mechanical strength with a Rockwell B80 hardness, providing dependable performance in demanding applications
• Space-saving headless design allows for flush mounting in assemblies where protruding fastener heads are not feasible
• Guaranteed quality and interchangeability through compliance with the stringent ASME B18.3 standard
• Safe for regulated industries as they are fully RoHS 3 and REACH compliant, containing no hazardous substances

Professional Applications & Engineering Value

This 10-32 UNF set screw is engineered to solve critical challenges in precision assembly and machinery. Manufactured from 316 Stainless Steel, it offers exceptional resistance to chemicals and corrosion, making it a top choice for applications in marine, chemical processing, and food-grade equipment. The headless, slotted design with a cup point provides a low-profile solution that digs into the shaft material, preventing rotational slippage and ensuring a permanent, secure lock for gears, pulleys, and collars. The fine UNF thread and Class 2A fit deliver superior clamping force and vibration resistance in tight spaces, a common engineering requirement. This combination of material and design directly addresses the industrial need for durable, reliable, and compliant fasteners in high-stakes environments.

Specification Summary & Compliance

This set screw features a 10-32 UNF thread with a Class 2A tolerance for precise fit and a length of 1/4 inch. It is manufactured in accordance with the ASME B18.3 specification. The product is confirmed to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring it meets strict environmental and safety regulations for hazardous substances.