S-94355A548 1/4"-20 x 1" 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 with 18-8 stainless steel construction, ideal for harsh industrial environments
- Exceptional thread precision with UNC Class 3A fit ensuring reliable, vibration-resistant fastening
- High mechanical strength backed by Rockwell B80 hardness for long-term durability under load
- Optimized drive efficiency through hex drive design enabling secure tool engagement and torque transmission
- Secure component positioning with flat tip design providing maximum surface contact and minimal slippage
- Industry-standard compliance meeting ASME B18.3 specifications for guaranteed interchangeability
- Environmental responsibility with full RoHS 3 and REACH compliance for safe usage in regulated applications
Professional Applications & Engineering Value
Engineered for precision fastening in demanding industrial settings, this 1/4"-20 UNC Class 3A set screw delivers critical performance advantages. The 18-8 stainless steel composition provides inherent corrosion resistance, eliminating failure risks in moist or chemical-exposed environments. Its coarse thread spacing and Class 3A thread fit create superior holding power against vibrational loosening in machinery, automotive assemblies, and precision equipment. The headless hex drive design allows flush mounting in confined spaces while maintaining high torque capability. Combined with the flat tip configuration, it ensures maximum grip on shaft surfaces, preventing component drift in pulley systems, couplings, and rotating assemblies where positional accuracy is paramount.
Specification Summary & Compliance
This set screw maintains UNC Class 3A thread tolerances with 1/4"-20 coarse thread specification and 1" length. Manufacturing conforms to ASME B18.3 standards for dimensional consistency and mechanical properties. The product is certified RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting international environmental regulations for hazardous substance restrictions.
