S-92480A868 4-40 x 3/4" ASME B18.6.3 Brass Phillips Flat Head Screws
Brass Phillips Flat Head 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 from brass construction ensures long-term reliability in harsh industrial environments
- Exceptional 50,000 psi tensile strength provides reliable fastening performance for demanding applications
- Precision Class 2A thread fit guarantees smooth installation and secure connections every time
- Fully threaded design offers maximum grip length and consistent holding power throughout the fastener
- 82° countersink angle enables flush mounting for clean, professional finishes in assembled products
- Phillips No. 1 drive ensures efficient installation with common tools while minimizing cam-out risks
- Comprehensive compliance with ASME B18.6.3, RoHS 3, and REACH standards meets rigorous industrial requirements
Professional Applications & Engineering Value
These 4-40 UNC brass flat head screws deliver exceptional engineering value through their combination of corrosion-resistant brass material and precision Class 2A thread fit. The fully threaded coarse spacing design provides superior pull-out resistance in softer materials while the 82° countersink angle creates seamless flush mounting for applications where surface smoothness is critical. The Rockwell B50 hardness rating ensures durability against wear and deformation, making these Phillips drive screws ideal for electronics enclosures, marine components, and industrial equipment where reliable fastening and environmental resistance are paramount. Their compliance with international standards guarantees consistent performance across manufacturing and maintenance operations.
Specification Summary & Compliance
These flat head screws feature precision 4-40 UNC coarse threads with Class 2A thread fit for optimal assembly tolerance. Manufacturing adheres to ASME B18.6.3 specifications ensuring dimensional accuracy and performance reliability. The screws are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making them suitable for global industrial applications requiring strict material safety standards. The combination of right-hand threading and standardized Phillips No. 1 drive ensures compatibility with common installation tools and procedures.
