S-95345A544 8-32 x 5/8" ASME B18.13 Stainless Steel Pan Head Phillips Screws with External-Tooth Lock Washer
Stainless Steel Pan Head Phillips Screws with External-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 external-tooth lock washer that maintains clamping force in high-motion environments
- Excellent corrosion resistance through 18-8 stainless steel construction and passivated finish for extended service life
- High tensile strength of 70,000 psi ensures reliable performance in demanding industrial applications
- Quick installation and removal with No. 2 Phillips drive and standard pan head design
- Secure fastening in coarse materials using UNC 8-32 coarse threads with Class 2A fit for optimal engagement
- Dual-material protection with matching passivated finishes on both screw and 410 stainless steel washer
- Full thread engagement capability with completely threaded shank for maximum holding power
Professional Applications & Engineering Value
These rounded head Phillips screws with integrated lock washers solve critical vibration-induced loosening problems in industrial machinery, electrical enclosures, and automotive assemblies. The 18-8 stainless steel construction combined with passivated finish provides exceptional corrosion resistance in harsh environments, while the external-tooth lock washer bites into mating surfaces to prevent rotational movement. The UNC 8-32 coarse thread configuration ensures rapid installation and reliable performance in softer materials or applications requiring frequent maintenance. With fully threaded design and 70,000 psi tensile strength, these fasteners deliver consistent clamping force across the entire engagement length, making them ideal for vibration-resistant applications where reliability is paramount.
Specification Summary & Compliance
This 8-32 x 5/8" rounded head screw features Class 2A thread fit tolerance and UNC coarse threading for optimal performance. Manufactured to ASME B18.13 specifications, the fastener system includes full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards. The complete assembly—including the 410 stainless steel external-tooth lock washer—maintains dimensional accuracy and material integrity according to industry standards for industrial fastening applications.
