S-99894A411 1/2"-13 x 1 1/2" MS90725-113 Mil. Spec. Medium-Strength Steel Hex Head Screws
Mil. Spec. Medium-Strength Steel Hex 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
- High tensile strength of 120,000 psi ensures reliable performance in demanding industrial applications, reducing the risk of fastener failure.
- Grade 5 steel construction provides excellent durability and load-bearing capacity, ideal for heavy-duty assemblies.
- Cadmium plating offers superior corrosion resistance, extending the screw's service life in harsh environments.
- UNC coarse thread with Class 2A fit allows for quick and easy installation, minimizing assembly time and labor costs.
- External hex drive design enables secure tightening with standard tools, enhancing installation efficiency and preventing stripping.
- Full threading along the 1 1/2" length ensures consistent grip and uniform stress distribution, improving joint integrity.
- Compliance with MS90725-113, RoHS, and REACH standards guarantees safety and environmental responsibility for global supply chains.
Professional Applications & Engineering Value
This Grade 5 steel hex head screw is engineered to address common industrial challenges, such as vibration loosening and corrosion-induced degradation. The cadmium plated finish provides a robust barrier against moisture and chemicals, making it suitable for outdoor machinery, automotive assemblies, and construction equipment. With its UNC coarse thread and Class 2A fit, it ensures precise alignment and secure fastening in high-stress environments, reducing maintenance needs. The external hex drive allows for high torque application, facilitating quick disassembly and reassembly in maintenance-heavy sectors. Ideal for OEM and MRO applications, this screw delivers long-term reliability and cost savings by minimizing downtime and replacement frequency.
Specification Summary & Compliance
This fastener adheres to Class 2A thread fit and UNC coarse thread standards (1/2"-13), ensuring dimensional accuracy and interchangeability. It meets MS90725-113 specifications for consistent quality and performance. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it supports environmentally safe and sustainable industrial practices.
