S-91440A503 10-32 x 3/8" ASME B18.6.3 Steel Round Head Combination Phillips/Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
• Enhanced installation flexibility through dual Phillips/Slotted No. 2 drive options accommodating various tool types
• Reliable thread engagement with Class 2A thread fit ensuring consistent fastening performance in precision applications
• Optimized load distribution from rounded head design that minimizes surface damage while providing secure clamping force
• High mechanical strength delivering 60,000 psi tensile strength and Rockwell B70 hardness for critical fastening requirements
• Precision fine threading with 10-32 UNF configuration enabling superior vibration resistance in dynamic applications
• Full regulatory compliance meeting ASME B18.6.3 manufacturing standards and environmental regulations including RoHS 3 and REACH

Professional Applications & Engineering Value

Engineered for industrial applications where vibration resistance and corrosion protection are paramount, these 10-32 UNF zinc-plated steel screws solve critical fastening challenges in machinery assembly, electrical enclosures, and precision equipment. The combination of fine threading and Class 2A thread fit ensures secure fastening in thin materials and high-vibration environments, while the rounded head profile distributes clamping force evenly without damaging sensitive surfaces. The dual drive system accommodates both Phillips and slotted drivers, providing installation flexibility for maintenance and production scenarios. With full threading along the entire 3/8" length, these screws deliver maximum engagement depth for superior holding power in critical industrial applications.

Specification Summary & Compliance

Manufactured to exacting ASME B18.6.3 standards with precision Class 2A thread fit tolerances for consistent performance. The 10-32 UNF fine thread configuration provides superior engagement in metal and engineered materials. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures safe use across global markets. Mechanical properties include 60,000 psi tensile strength and Rockwell B70 hardness for demanding industrial applications.