S-93595A220 1/4"-28 x 7/8" ASTM B456 18-8 Stainless Steel Socket Head Screws
18-8 Stainless Steel Socket Head 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 chrome-plated 18-8 stainless steel construction, ideal for harsh industrial environments
- Precise thread engagement with Class 3A fit ensuring reliable, vibration-resistant connections in critical assemblies
- High tensile strength of 70,000 psi provides exceptional load-bearing capacity for demanding applications
- Fine UNF thread design offers improved adjustment accuracy and better resistance to loosening under dynamic loads
- Standard hex socket drive allows for high-torque installation with common tools while maintaining clean aesthetics
- Full threading along 7/8" length enables maximum flexibility in component positioning and clamping force distribution
- Comprehensive compliance with ASTM B456, RoHS 3 and REACH ensures material quality and environmental responsibility
Professional Applications & Engineering Value
Engineered for precision assemblies requiring reliable fastening under demanding conditions, this socket head cap screw combines the corrosion resistance of chrome plated 18-8 stainless steel with the accuracy of Class 3A thread fit. The 1/4"-28 UNF fine thread configuration provides superior vibration resistance in machinery, automotive, and aerospace applications where maintaining clamp load is critical. The 3/16" hex drive socket enables high-torque installation in confined spaces while preventing tool slippage. With Rockwell B70 hardness and 70,000 psi tensile strength, this fastener maintains integrity in high-stress environments, solving common challenges of fastener failure, corrosion-induced seizure, and assembly inaccessibility.
Specification Summary & Compliance
This socket head cap screw features precision Class 3A thread fit with 1/4"-28 UNF fine threads in right-hand direction, manufactured to ASTM B456 specifications. The inch-system dimensional accuracy includes 3/8" head diameter and 7/8" fully threaded length. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) ensures environmental responsibility and material safety standards are met for industrial applications worldwide.
