S-90337A324 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 construction and passivated finish, ideal for harsh industrial environments.
- Exceptional strength and durability offering a high tensile strength of 70,000 psi and Rockwell B55 hardness for reliable, long-term performance.
- Precise alignment and secure fit due to the precisely machined 5/16" shoulder diameter with a tight tolerance of -0.001" to 0".
- Easy installation and space-saving design with a low-profile socket head and hex drive, allowing for use in confined spaces.
- Consistent and reliable threading with UNC coarse threads and Class 2A fit, ensuring easy assembly and vibration resistance.
- Compliance with environmental regulations, being RoHS 3 and REACH compliant, making it suitable for global supply chains.
Professional Applications & Engineering Value
This 1/4"-20 UNC shoulder screw is engineered to address critical alignment and mounting challenges in industrial machinery. Made from 18-8 Stainless Steel with a passivated finish, it resists corrosion and wear, extending service life in demanding applications like pivots, guides, and spindles. The low-profile socket head and hex drive facilitate quick installation in tight spaces, while the precise shoulder diameter ensures accurate component positioning, reducing misalignment and improving operational efficiency. Ideal for use in automation, automotive, and heavy equipment, this screw provides reliable performance where precision shoulder screws are essential for minimizing downtime and maintenance costs.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 2A fit for consistent threading and ease of assembly. Key dimensions include a thread size of 1/4"-20, shoulder diameter of 5/16" with tolerance of -0.001" to 0", and shoulder length of 1/4" with tolerance of 0" to 0.002". It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for various industrial sectors.
