S-95345A014 2-56 x 1/4" ASME B18.13 Stainless Steel Pan Head Phillips Screws with Internal-Tooth Lock Washer
Stainless Steel Pan Head Phillips Screws with Internal-Tooth 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
- Superior vibration resistance with integrated internal-tooth lock washer that maintains clamp force in high-stress environments
- Excellent corrosion resistance through 18-8 stainless steel construction and passivated surface treatment
- High tensile strength of 70,000 psi ensures reliable performance in demanding industrial applications
- Quick installation and removal with Phillips No. 1 drive and coarse UNC threads for efficient assembly
- Secure locking action from 410 stainless steel lock washer that prevents loosening under dynamic loads
- Full threading capability provides maximum engagement and holding power throughout the entire length
- Standardized dimensions with rounded pan head profile for consistent performance and compatibility
Professional Applications & Engineering Value
These 2-56 UNC rounded head Phillips screws with integrated internal-tooth lock washers solve critical vibration-induced loosening problems in industrial equipment, electronic enclosures, and machinery assemblies. The 18-8 stainless steel construction combined with passivated finish provides exceptional corrosion resistance in harsh environments, while the coarse thread design ensures rapid installation and reliable holding power. The 410 stainless steel lock washer creates permanent spring tension that maintains clamp force even under extreme vibration, making these fasteners ideal for applications where reliability is paramount. The combination of fully threaded design and Class 2A thread fit guarantees precise engagement and consistent performance across production runs.
Specification Summary & Compliance
These screws feature Class 2A thread fit with UNC coarse threads and are manufactured to ASME B18.13 specifications. The fasteners are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The assembly includes a 1/4" length fully threaded screw with 0.185" OD internal-tooth lock washer, providing a complete vibration-resistant fastening solution meeting industry standards for quality and safety.
