S-93897A401 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
- Corrosion-resistant Nylon 6/6 construction eliminates rust and chemical degradation in harsh environments, ensuring long-term reliability.
- Electrical insulating properties prevent current conduction, making it ideal for electronic assemblies and applications requiring isolation.
- Wide operating temperature range from -40°F to 185°F maintains structural integrity and performance in varied thermal conditions.
- 5/32" hex socket drive allows for high-torque installation with standard tools, providing secure fastening and reducing assembly time.
- Precision Class 2A thread fit and 1/4"-20 UNC coarse threads ensure smooth engagement and consistent clamping force.
- Integrated shoulder with standard fit acts as a precise spacer or pivot point, improving alignment and reducing component wear.
- RoHS 3 compliance guarantees environmental safety and meets international regulatory standards for hazardous substances.
Professional Applications & Engineering Value
This Nylon 6/6 plastic shoulder screw is engineered to address common industrial challenges such as galvanic corrosion, electrical shorting, and weight reduction. The 1/4"-20 UNC coarse thread and Class 2A fit provide reliable fastening in plastics and soft materials, while the smooth socket head and hex drive enable efficient installation in confined spaces. Its electrically insulating and corrosion-resistant properties make it indispensable in electronics, machinery, and outdoor equipment, where metal fasteners would fail. The integrated shoulder serves as a durable bearing surface or pivot, reducing the need for additional components and simplifying assembly in automation, conveyor systems, and precision instruments.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent performance. Key dimensions include a 1/4"-20 thread size, 7/16" thread length, and 1/4" shoulder length with standard fit. It is manufactured from Nylon 6/6 plastic and is fully RoHS 3 (2015/863/EU) Compliant, ensuring it meets stringent environmental and safety regulations for industrial use.
