S-92012A508 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
- Enhanced Durability: Alloy steel construction with Rockwell C32 hardness ensures long-lasting performance in demanding industrial environments.
- Superior Corrosion Resistance: Black oxide finish provides reliable protection against rust and wear, extending service life.
- Precise Alignment: 1/8" shoulder diameter with tight tolerances (-0.001" to 0") guarantees accurate component positioning and reduced vibration.
- High Tensile Strength: 140,000 psi rating supports heavy-duty applications, preventing failure under stress.
- Easy Installation: Hex socket drive (5/64") allows for secure, tool-friendly fastening in confined spaces.
- Reliable Thread Engagement: UNC coarse threads with Class 2A fit ensure consistent, vibration-resistant connections.
- Compliance Assurance: Meets RoHS 3 and REACH standards, making it safe for regulated industries.
Professional Applications & Engineering Value
This 4-40 UNC shoulder screw is engineered to address critical alignment and stability challenges in machinery, automation, and precision assemblies. The alloy steel material, combined with a black oxide finish, resists corrosion and wear in harsh conditions, while the precise 1/8" shoulder diameter with minimal tolerances ensures exact component spacing and reduces misalignment. The socket head with hex drive facilitates easy installation in tight spaces, and the coarse UNC threads provide quick, secure fastening. Ideal for pivots, guides, and rotating parts in industrial equipment, this screw enhances operational reliability and minimizes maintenance needs.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent engagement. Dimensions include a shoulder diameter of 1/8" (tolerance: -0.001" to 0") and shoulder length of 1" (tolerance: 0" to 0.002"), ensuring precision in manufacturing. It is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally safe and regulated industrial use.
