S-90281A340 5/16"-18 x 4 1/2" DIN 939 Setup Studs
Setup Studs
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Basic Information
Dimension Parameters
Thread Parameters
End A Parameters
End B Parameters
Material & Strength Parameters
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Key Features & Benefits at a Glance
- Enhanced corrosion resistance with black-oxide steel finish, extending component life in demanding industrial environments
- Precise thread engagement with Class 2A fit ensures reliable, vibration-resistant connections in critical assemblies
- High tensile strength rating of 125,000 psi provides exceptional load-bearing capacity for heavy-duty applications
- Dual-end threading design enables efficient setup and alignment in machinery and fixture applications
- Standardized dimensions per DIN 939 ensure consistent performance and interchangeability in European machinery
- Superior hardness (Rockwell C22) maintains thread integrity under repeated installation cycles
- Environmental compliance with RoHS 3 and REACH regulations meets global manufacturing standards
Professional Applications & Engineering Value
These black-oxide steel setup studs address critical alignment and mounting challenges in precision industrial equipment. The 5/16"-18 threading on both ends with Class 2A thread fit provides exceptional dimensional accuracy for jigs, fixtures, and machinery setup where repeated assembly/disassembly is required. The DIN 939 compliance ensures compatibility with European engineering standards, while the 125,000 psi tensile strength and Rockwell C22 hardness prevent thread deformation under high clamping loads. Ideal for CNC machinery, automotive fixtures, and precision manufacturing systems, these studs deliver reliable performance in applications demanding exact positioning and structural integrity.
Specification Summary & Compliance
Manufactured to DIN 939 specifications with Class 2A thread fit tolerance ensuring precise engagement. The 4 1/2" length features 1 1/8" threaded sections on both ends with 5/16"-18 unified thread form. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting international standards for hazardous substance restrictions. Mechanical properties include minimum 125,000 psi tensile strength and Rockwell C22 hardness, validating performance for industrial fastener applications.
