S-92210A085 2-56 x 3/4" ASME B18.3 Stainless Steel Hex Drive Flat Head Screws
Stainless Steel Hex Drive Flat 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 and passivated finish for extended service life in harsh environments
- High tensile strength of 70,000 psi ensures reliable fastening performance under demanding mechanical loads
- Precision Class 3A thread fit provides superior engagement and vibration resistance in critical assemblies
- Hex drive design (0.050") enables secure tool engagement and efficient installation in confined spaces
- 82° countersink angle allows for flush mounting with standard chamfered holes
- Full threading along 3/4" length offers maximum grip range and adjustment flexibility
- Compliance with ASME B18.3 standards guarantees dimensional accuracy and interchangeability
Professional Applications & Engineering Value
These 2-56 UNC flat head screws deliver exceptional engineering value in precision assemblies where corrosion resistance and reliable fastening are critical. The 18-8 stainless steel material combined with passivated finish provides superior protection against chemical exposure and environmental degradation, making them ideal for industrial equipment, electronic enclosures, and marine applications. The hex drive design ensures positive torque transmission while the Class 3A thread fit maintains precise alignment in vibration-prone environments. With coarse thread spacing and right-hand threading, these screws offer quick installation and secure holding power in metal, plastic, and composite materials.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications with Class 3A thread fit for precision dimensional control. Features UNC coarse threads with 2-56 size, 0.086" thread diameter, and standard 82° flat head profile. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Mechanical properties include Rockwell B55 hardness and 70,000 psi tensile strength for consistent performance in industrial fastening applications.
