S-90401A827 10-32 x 3/8" Hex Head Screws with Lock Washer
Hex Head Screws with Lock Washer
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Washer & Nut
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Vibration-resistant secure fastening with integrated external-tooth lock washer prevents loosening under dynamic loads
- Superior corrosion protection through zinc-plated steel construction ensures longevity in harsh industrial environments
- High-strength performance with 60,000 psi tensile strength and Rockwell B70 hardness withstands heavy mechanical stress
- Precision thread engagement with Class 2A fit and UNF fine threads provides reliable, consistent clamping force
- Quick installation capability through external hex drive design allows efficient assembly with standard tools
- Full-threaded design maximizes grip length and distributes load evenly across the entire fastener
- Regulatory compliance assurance meets RoHS 3 and REACH standards for global industrial applications
Professional Applications & Engineering Value
These 10-32 UNF hex head screws with integrated external-tooth lock washers solve critical vibration-induced loosening problems in industrial machinery, automotive assemblies, and electrical enclosures. The zinc-plated steel construction provides essential corrosion resistance for demanding environments, while the fine UNF threads and Class 2A fit ensure precise alignment and consistent torque transmission. The combination of 60,000 psi tensile strength and Rockwell B70 hardness makes these fasteners ideal for applications requiring reliable performance under mechanical stress, with the lock washer permanently attached to eliminate separate component handling during assembly operations.
Specification Summary & Compliance
Manufactured to precise inch system dimensions with Class 2A thread fit tolerance and UNF (Unified National Fine) thread standard. Features include 10-32 thread size, 3/8" length, fully threaded design, and external hex drive configuration. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial markets and restricted substance requirements.
