S-91319A203 M5 ASME B18.3.3M, ISO 7379 Shoulder Screws
Shoulder 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
- Vibration-resistant locking with nylon pellet thread locker that maintains integrity from -50° to 250° F, preventing loosening in dynamic applications
- Exceptional load-bearing capacity with 150,000 psi tensile strength and 84,000 psi shear strength for demanding industrial environments
- Precision shoulder alignment with 6mm diameter and 12mm length providing accurate component positioning and reduced assembly stress
- Enhanced grip and corrosion resistance through knurled head texture and black oxide finish for secure handling and durability
- Reliable metric threading with M5x0.8 coarse pitch and Class 5g6g fit ensuring consistent engagement and interchangeability
- Industry-standard compliance meeting ASME B18.3.3M and ISO 7379 specifications for quality assurance across global applications
- Secure hex drive operation with 3mm drive size enabling efficient installation and removal in confined spaces
Professional Applications & Engineering Value
This M5 shoulder screw delivers critical engineering solutions where precision alignment and vibration resistance are paramount. The alloy steel construction with black oxide finish provides superior corrosion protection in harsh environments while maintaining Rockwell C32 hardness for long-term performance. The integrated nylon pellet thread locker prevents accidental loosening in high-vibration machinery, automotive assemblies, and precision equipment. The 12mm shoulder length with tight diameter tolerance ensures exact component spacing in rotating mechanisms, bearing mounts, and linkage systems. With coarse metric threading (M5x0.8) and hex drive design, installation efficiency is maximized while maintaining the structural integrity required for industrial automation and manufacturing applications.
Specification Summary & Compliance
Manufactured to Class 5g6g thread fit standards with shoulder diameter tolerance of -0.049 to -0.01 mm and shoulder length tolerance of 0 to 0.25 mm. Complies with ASME B18.3.3M and ISO 7379 specifications for dimensional accuracy. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards, ensuring safe use across regulated industries.
