S-90251A179 10-32 x 1/4" ASME B18.3 Set Screws
Set Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance in harsh environments thanks to premium 316 stainless steel construction
- Permanent, vibration-resistant locking ensured by the integrated nylon patch, eliminating the need for separate threadlockers
- Reliable performance under extreme temperatures with a locking element that remains effective from -50°F to 250°F
- Exceptional thread engagement and holding power delivered by the 10-32 UNF fine thread with a precise Class 3A fit
- Secure installation in confined spaces enabled by the compact, headless design and 3/32" hex drive
- Enhanced grip and minimal surface damage from the cup tip, providing superior clamping force
- Guaranteed mechanical strength and durability with a Rockwell B80 hardness rating
Professional Applications & Engineering Value
This 316 Stainless Steel Set Screw is engineered to solve critical challenges in precision assembly and machinery. The combination of UNF 10-32 fine threads and a Class 3A thread fit ensures zero backlash and superior resistance to loosening under dynamic loads, making it ideal for permanent locking applications in automotive, aerospace, and marine components. The nylon patch locking system provides a chemical-free, maintenance-free securing method that withstands temperature fluctuations and harsh chemicals, while the headless design and cup tip allow for flush mounting and excellent torque transmission without damaging the mating surface. This fastener delivers long-term reliability in corrosive or high-vibration environments where failure is not an option.
Specification Summary & Compliance
This set screw adheres to the dimensional and mechanical requirements of ASME B18.3. The 10-32 UNF thread features a fine thread spacing and a high-precision Class 3A thread fit for superior accuracy. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets the latest environmental and safety standards for industrial use.
