S-90276A101 3-48 x 1" ASME B18.6.3 Steel Round Head Slotted Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with zinc-plated steel construction, extending service life in industrial environments
• Superior load-bearing capacity from 60,000 psi tensile strength, ensuring reliable performance under stress
• Optimized thread engagement with Class 2A coarse UNC threads for faster assembly and reduced cross-threading risks
• Consistent driving performance through standard slotted drive and rounded head profile
• Full-length threading provides maximum grip and distribution of clamping force
• Industry-standard compliance with ASME B18.6.3 specifications for dimensional accuracy
• Environmental regulation adherence meeting RoHS 3 and REACH requirements for safe usage

Professional Applications & Engineering Value

These 3-48 UNC zinc-plated steel rounded head slotted screws deliver critical reliability where vibration resistance and corrosion protection are paramount. The coarse thread design enables rapid installation in soft materials and prevents stripping in high-cycle assembly lines. With Rockwell B69 hardness and fully threaded construction, they maintain clamping force in machinery, electrical enclosures, and automotive components subjected to dynamic loads. The slotted drive system offers compatibility with standard tools while the rounded head profile minimizes snagging hazards. Ideal for OEM manufacturing and MRO applications requiring ASME B18.6.3 compliant fasteners that balance strength with regulatory compliance.

Specification Summary & Compliance

Precision-manufactured to Class 2A thread fit tolerances with unified coarse (UNC) 3-48 threading. Meets dimensional requirements per ASME B18.6.3 standard. Material certifications include RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance for restricted substance control. Right-hand thread orientation with standard rounded head profile ensures interchangeability across industrial applications.