S-94035A222 1/4"-20 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 and passivated finish, ideal for harsh industrial environments.
- Exceptional strength and durability from 70,000 psi tensile strength and Rockwell B55 hardness for reliable, long-term performance.
- Precise component alignment ensured by the accurate shoulder diameter and minimal length tolerance (-0.001" to 0.002").
- Easy installation and high torque capability with the hex socket drive design, reducing tool slippage.
- Secure and stable fastening provided by the Class 2A thread fit and coarse 1/4-20 UNC threading.
- Compliance with global environmental standards including RoHS 3 and REACH, ensuring safe and sustainable use.
- Versatile right-hand thread suitable for a wide range of machinery and assembly applications.
Professional Applications & Engineering Value
This stainless steel shoulder screw is engineered to address critical alignment and wear issues in precision assemblies. The 1-1/2" shoulder length and precise shoulder fit act as a dependable pivot or spacer, minimizing misalignment in rotating parts like gears, pulleys, and linkages. Made from 18-8 stainless steel with a passivated finish, it resists corrosion in demanding environments, from food processing equipment to outdoor machinery. The hex socket head allows for compact installation in tight spaces, while the coarse 1/4-20 UNC thread ensures quick assembly and high vibration resistance. Its 70,000 psi tensile strength and Rockwell B55 hardness provide the durability needed for high-stress industrial applications, reducing maintenance downtime and enhancing operational reliability.
Specification Summary & Compliance
This shoulder screw features a Class 2A thread fit for consistent engagement and a shoulder diameter tolerance of -0.001" to 0" for precise alignment. It adheres to UNC thread standards and is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free of hazardous substances and suitable for global industrial use.
