S-90289A190 8-32 x 1/4" ASME B18.3 Set Screws
Set Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance with Black-Oxide coating, extending service life in harsh industrial environments
- Exceptional holding power through serrated locking design that prevents loosening under vibration
- Precise thread engagement with Class 3A fit ensuring reliable, secure fastening in critical applications
- High-strength performance from alloy steel construction with Rockwell C45 hardness for durable, long-term use
- Space-saving headless design allowing flush mounting where clearance is limited
- Secure installation with cup tip that concentrates clamping force and prevents component damage
- Easy installation and removal using standard 5/64" hex tools for efficient maintenance
Professional Applications & Engineering Value
This 8-32 UNC set screw delivers exceptional engineering value for industrial applications requiring reliable, vibration-resistant fastening. The Black-Oxide Alloy Steel construction provides superior corrosion protection while maintaining the Rockwell C45 hardness needed for high-strength applications. The combination of serrations locking and cup tip design solves critical challenges in machinery, automotive, and equipment manufacturing where vibration-induced loosening can compromise safety and performance. The coarse UNC thread ensures quick installation and reliable holding in various materials, while the headless configuration enables use in space-constrained assemblies. These industrial set screws are engineered to maintain precise alignment and clamping force in demanding environments, reducing maintenance frequency and improving overall system reliability.
Specification Summary & Compliance
This set screw features precision 8-32 UNC Class 3A thread fit with coarse thread spacing and right-hand thread direction, manufactured to exacting dimensional standards. The product complies with ASME B18.3 specifications for dimensional accuracy and performance requirements. Environmental and safety compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring safe use across industrial applications. The Rockwell C45 hardness rating guarantees consistent mechanical properties and durability under load.
