S-92224A220 1/4"-20 x 3/8" ASME B18.6.3 Steel Pan Head Phillips Screws
Steel Pan Head Phillips Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with black oxide steel finish, extending service life in demanding industrial environments
- High tensile strength of 60,000 psi ensures reliable fastening under substantial mechanical loads
- Precision UNC coarse threading with Class 2A fit provides smooth installation and secure hold in various materials
- Rockwell B70 hardness rating maintains thread integrity and prevents stripping during repeated use
- Full threading design allows maximum grip length and uniform stress distribution along the entire fastener
- Phillips No. 3 drive with pan head offers efficient torque transfer and a low-profile, rounded appearance
- Comprehensive regulatory compliance meets ASME B18.6.3, RoHS 3, and REACH standards for global industrial applications
Professional Applications & Engineering Value
Engineered for industrial fastening where reliability and corrosion resistance are critical, these black oxide steel screws excel in machinery assembly, electrical enclosures, and automotive components. The 1/4"-20 UNC coarse thread with Class 2A fit ensures quick installation and vibration resistance, reducing maintenance downtime. With 60,000 psi tensile strength and Rockwell B70 hardness, they withstand high-stress applications without deformation. The pan head Phillips design provides a secure drive interface while maintaining a low profile for space-constrained assemblies. Ideal for OEM and MRO applications requiring ASME B18.6.3 compliant fasteners that meet international environmental standards.
Specification Summary & Compliance
Manufactured to ASME B18.6.3 specifications with Class 2A thread fit tolerance for consistent performance. Features UNC coarse threading (1/4"-20) with full threading along the 3/8" length. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations for hazardous substance restrictions. Material certification available for black oxide steel with specified mechanical properties including 60,000 psi tensile strength and Rockwell B70 hardness.
