S-90402A527 10-24 x 3/8" ASME B18.13 Steel Pan Head Phillips Screws with External-Tooth Lock Washer
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 washers that maintain secure fastening under dynamic loads
- High tensile strength of 60,000 psi ensures reliable performance in demanding industrial applications
- Corrosion-resistant zinc-plated steel construction provides durable protection in various environmental conditions
- Class 2A UNC coarse threads enable quick installation and excellent holding power in a wide range of materials
- Phillips pan head design offers convenient driving and a low-profile appearance for streamlined assemblies
- Full threading allows for maximum engagement and consistent clamping force throughout the fastener length
- Rockwell B69 hardness maintains structural integrity and prevents deformation during installation and service
Professional Applications & Engineering Value
These zinc-plated steel screws with external-tooth lock washers deliver exceptional engineering value by solving critical vibration-induced loosening problems in industrial equipment, machinery, and automotive assemblies. The combination of 60,000 psi tensile strength and Rockwell B69 hardness ensures these fasteners withstand high stress conditions while maintaining their structural integrity. The UNC coarse threads provide excellent grip in various materials, from metals to plastics, making them ideal for production lines requiring rapid assembly. The Phillips drive system enables efficient installation with standard tools, while the integrated locking mechanism eliminates the need for separate anti-vibration components, reducing inventory complexity and installation time in manufacturing environments.
Specification Summary & Compliance
These 10-24 x 3/8" zinc-plated steel Phillips pan head screws feature Class 2A thread fit tolerance for consistent performance and UNC coarse threads measuring 0.19" in diameter. The fasteners are manufactured to ASME B18.13 specifications and comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring they meet industry standards for quality and environmental responsibility.
