S-92196A123 4-40 x 3" ASME B18.3 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 18-8 Stainless Steel construction, ideal for harsh environments and long-term reliability
- High tensile strength of 70,000 psi ensures secure, vibration-resistant fastening in demanding applications
- Precision Class 3A thread fit guarantees consistent engagement and reduces the risk of cross-threading during assembly
- Coarse 4-40 UNC threads provide faster installation and better performance in softer materials or where debris is present
- Hex socket drive design allows for high torque application and easy access in confined spaces
- Compliance with ASME B18.3, RoHS 3, and REACH ensures product quality, safety, and environmental responsibility
- Partially threaded shank offers flexibility for precise clamping and positioning in assembled components
Professional Applications & Engineering Value
Engineered for precision industrial assemblies, these 18-8 Stainless Steel Socket Head Cap Screws address critical challenges in machinery, automotive, and electronics sectors. The 4-40 UNC coarse thread design resists loosening under vibration while enabling rapid installation. With a Rockwell B70 hardness and 70,000 psi tensile strength, they withstand high stress without stripping or shearing. The hex drive and standard socket head profile facilitate secure tool engagement in tight spaces, reducing assembly time and improving worker safety. Their corrosion-resistant properties make them suitable for outdoor equipment, marine applications, and chemical processing environments where durability is paramount.
Specification Summary & Compliance
This Socket Head Cap Screw features a 4-40 UNC thread with Class 3A fit for superior dimensional accuracy, a minimum thread length of 3/4", and an overall length of 3". Manufactured in accordance with ASME B18.3 specifications, it ensures interchangeability and reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to strict environmental and safety standards for global industrial use.
