S-90585A841 5/8"-11 x 3" 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 in harsh environments thanks to 316 stainless steel construction with passivated finish
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness for heavy-duty applications
- Precise Class 3A thread fit ensures reliable engagement and vibration resistance in critical assemblies
- Full threading along 3" length provides maximum grip and load distribution across entire fastener
- Standard 82° countersink angle allows for flush mounting in various materials and applications
- Hex drive design (3/8") enables high-torque installation and removal with standard tools
- Comprehensive regulatory compliance meets ASME B18.3, RoHS 3, and REACH standards for global industrial use
Professional Applications & Engineering Value
Engineered for demanding industrial environments where corrosion resistance and mechanical integrity are paramount, these 316 stainless steel flat head screws deliver exceptional performance in chemical processing, marine applications, and food processing equipment. The combination of Class 3A thread fit and coarse UNC threading provides superior vibration resistance and quick assembly in high-stress applications. The passivated finish enhances the natural corrosion resistance of 316 stainless steel, making these fully threaded screws ideal for applications exposed to chlorides, acids, and extreme weather conditions. The 82° countersink angle and flat head design ensure flush mounting while the hex drive accommodates high installation torque requirements.
Specification Summary & Compliance
Manufactured to precision Class 3A thread fit with UNC coarse threading (5/8"-11) and compliant with ASME B18.3 specifications. These flat head screws feature complete RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental responsibility and global market acceptance. Dimensional accuracy is maintained with head diameter tolerance of -0.076" to 0" and standardized 82° countersink angle profile.
