S-97345A159 4-40 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
- Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and extended service life.
- High-strength performance offering 70,000 psi tensile strength and 35,000 psi shear strength for reliable, heavy-duty fastening.
- Precise Class 3A thread fit ensures tight tolerances and secure assembly, reducing the risk of loosening under vibration.
- Easy installation and removal with a 5/64" hex socket drive and knurled head for improved grip and torque application.
- Durable shoulder design provides stable bearing surfaces and accurate alignment in machinery and pivoting applications.
- Compliance with environmental standards, including RoHS 3 and REACH, meeting global regulatory requirements for safe use.
- Coarse UNC threads enable quick assembly and are less prone to clogging in demanding conditions.
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address critical challenges in precision assembly and corrosive environments. The Class 3A thread fit and UNC coarse thread design ensure reliable engagement and resistance to vibration, making it suitable for industrial machinery, automotive systems, and electronic enclosures. The knurled head and hex socket drive facilitate easy handling and high-torque installation, while the shoulder diameter and length provide exact positioning for rotating parts. With high tensile and shear strength, it supports demanding applications where failure is not an option, enhancing equipment durability and reducing maintenance needs.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 3A precision fit for optimal thread engagement. Dimensions include a thread size of 4-40, shoulder diameter of 1/8" with tight tolerances, and thread length of 5/32". It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and suitable for global industrial use.
