S-90403A835 10-24 x 1" ASME B18.13 Steel Pan Head Phillips Screws with Internal-Tooth Lock Washer
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 corrosion resistance with zinc-plated steel construction, extending service life in harsh industrial environments
- Enhanced vibration resistance from the integrated internal-tooth lock washer, preventing loosening under dynamic loads
- High tensile strength of 60,000 psi ensures reliable fastening for demanding applications without failure
- Easy installation and removal with Phillips No. 2 drive and fully threaded coarse UNC design for quick assembly
- Consistent thread engagement due to Class 2A thread fit, reducing cross-threading risks and improving reliability
- Broad industrial compliance meeting ASME B18.13 standards, RoHS 3, and REACH for global supply chain compatibility
- Optimized load distribution with pan head design and lock washer, minimizing surface damage and improving joint integrity
Professional Applications & Engineering Value
These zinc-plated steel pan head screws with internal-tooth lock washers are engineered to solve common industrial challenges like vibration-induced loosening and corrosion in machinery, electrical enclosures, and automotive assemblies. The coarse UNC threads and Class 2A fit enable rapid installation in sheet metal, plastics, and soft materials, while the 60,000 psi tensile strength and Rockwell B69 hardness provide durable, high-load fastening. Ideal for rounded head screw applications requiring secure, reusable connections, they reduce maintenance downtime and ensure long-term performance in compliance with ASME B18.13 and environmental regulations.
Specification Summary & Compliance
This screw features a 10-24 UNC coarse thread with Class 2A thread fit for precise tolerance, fully threaded for maximum grip. It complies with ASME B18.13 manufacturing standards and is RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring safety and environmental responsibility. Dimensions include a 1" length, 0.373" head diameter, and integrated zinc-plated steel lock washer for consistent performance.
