S-92949A336 6-40 x 3/16" ASME B18.3 Stainless Steel Button Head Hex-Drive Screws
Stainless Steel Button Head Hex-Drive 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 and passivated finish, ideal for harsh industrial environments
- Exceptional tensile strength rated at 70,000 psi ensures reliable performance under high-stress applications
- Precision Class 3A thread fit provides superior engagement and vibration resistance in fine-threaded assemblies
- Optimized hex drive design (5/64") enables secure tool engagement and reduces stripping during installation
- Rounded button head profile offers a low-profile, finished appearance while minimizing snagging hazards
- Full compliance with ASME B18.3 standards guarantees dimensional accuracy and interchangeability
- Environmental regulation compliance with RoHS 3 and REACH ensures safe use across global markets
Professional Applications & Engineering Value
Engineered for precision assemblies requiring reliable fastening solutions, these 6-40 UNF rounded head screws deliver critical performance advantages in industrial applications. The 18-8 stainless steel material combined with passivated finish provides exceptional resistance to corrosion and chemical exposure, making them ideal for electronics, machinery, and outdoor equipment. The fine thread spacing and Class 3A thread fit ensure secure fastening in thin materials and vibration-prone environments, while the hex drive style prevents cam-out during high-torque installations. These button head screws are particularly valuable in applications where space constraints and aesthetic considerations are important, offering both mechanical reliability and clean visual integration.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications with Class 3A thread tolerance for precision fit. Features UNF fine thread (6-40) with right-hand threading and full threading along the 3/16" length. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Hardness rated at Rockwell B55 with dimensional accuracy maintained throughout production.
