S-94035A198 5/16"-18 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 18-8 Stainless Steel construction and passivated finish, ideal for harsh industrial environments.
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness for reliable performance under high stress.
- Precise alignment and pivot function due to the 3/8" shoulder diameter with a precise fit tolerance, minimizing assembly play.
- Easy installation and high torque transmission enabled by the hex socket drive and 3/16" drive size for secure fastening.
- Wide compatibility and reliable threading with UNC coarse 5/16"-18 right-hand threads and Class 2A fit for consistent engagement.
- Durable, smooth head profile that reduces friction and wear in moving parts and rotating assemblies.
- Compliant with global environmental standards including RoHS 3 and REACH, ensuring safe and sustainable use.
Professional Applications & Engineering Value
This 18-8 Stainless Steel shoulder screw is engineered to address critical alignment and durability challenges in mechanical systems. The precise shoulder diameter and fit tolerance provide a stable pivot or locating point, essential in machinery, automation, and rotating assemblies where minimal radial play is required. The UNC coarse thread and Class 2A fit ensure quick assembly and reliable fastening, while the passivated finish enhances corrosion resistance, extending service life in demanding conditions. Its socket head design with a hex drive allows for high torque application in confined spaces, making it a versatile choice for OEMs and maintenance teams seeking robust, precision shoulder screws for industrial applications.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy. The shoulder features a diameter of 3/8" with a tight tolerance of -0.001" to 0", and a shoulder length of 7/8" with a 0" to 0.002" tolerance, ensuring precise assembly. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming its suitability for regulated industries and environmentally conscious procurement.
