S-91259A162 6-32 ASTM A574 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
- Exceptional load-bearing capacity with 140,000 psi tensile strength and 84,000 psi shear strength for reliable performance in demanding applications.
- Superior corrosion resistance provided by the black oxide finish, extending service life in harsh industrial environments.
- Precision thread engagement with Class 3A fit and UNC coarse thread ensuring secure fastening and vibration resistance.
- High durability from Rockwell C32 hardness alloy steel, maintaining structural integrity under repeated stress.
- Easy installation and removal with 3/32" hex socket drive, allowing efficient assembly in confined spaces.
- Accurate shoulder positioning with controlled diameter and length tolerances for consistent component alignment.
- Compliance with industry standards including ASTM A574, RoHS 3, and REACH for guaranteed quality and environmental safety.
Professional Applications & Engineering Value
These alloy steel shoulder screws with black oxide finish are engineered to address critical alignment and wear issues in precision assemblies. The 6-32 UNC coarse thread and Class 3A thread fit provide secure fastening in high-vibration environments like robotics, automotive fixtures, and machinery. The smooth shoulder with tight tolerances ensures accurate pivot points and bearing surfaces, reducing component wear. With 140,000 psi tensile strength, they handle heavy dynamic loads without failure, making them ideal for industrial applications requiring durability and corrosion resistance. The hex drive design facilitates quick maintenance in space-constrained setups.
Specification Summary & Compliance
This shoulder screw features a 6-32 UNC thread with Class 3A fit and coarse spacing for reliable engagement. Dimensions include a shoulder diameter of 5/32" (tolerance: -0.004" to -0.002") and shoulder length of 3/8" (tolerance: -0.005" to 0.005") for precise assembly. Manufactured to ASTM A574 specifications, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental and safety standards are upheld.
