S-8077A393 10-32 ASME B18.3 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 316 stainless steel construction and black oxide finish, ideal for harsh industrial environments
- High-strength performance with 70,000 psi tensile strength and 35,000 psi minimum shear strength for reliable load-bearing applications
- Precision Class 3A thread fit ensures tight, secure fastening with minimal backlash in fine-threaded assemblies
- Easy installation and removal with hex drive socket and knurled head for improved grip and torque application
- Dimensional stability with controlled shoulder diameter and length tolerances for consistent alignment in machinery
- Compliance with industry standards including ASME B18.3, RoHS 3, and REACH for safe, regulated use
- Durable Rockwell B79 hardness provides excellent wear resistance and long service life
Professional Applications & Engineering Value
This 10-32 UNF thread shoulder screw in 316 stainless steel with black oxide finish addresses critical engineering needs in precision assemblies. The fine thread design and Class 3A fit deliver secure, vibration-resistant fastening in applications like rotating shafts, pivots, and guides, where alignment accuracy is paramount. The knurled head and hex drive facilitate quick maintenance in tight spaces, while the corrosion-resistant material ensures reliability in moist or chemical-exposed settings such as marine equipment, food processing, and pharmaceutical machinery. Its 1/4" shoulder diameter and 1/8" shoulder length provide stable bearing surfaces, reducing wear on connected components and extending equipment lifespan.
Specification Summary & Compliance
This shoulder screw features a 10-32 UNF fine thread with Class 3A tolerance for precise fit, alongside a shoulder diameter of 1/4" (tolerance: -0.004" to -0.002") and shoulder length of 1/8" (tolerance: -0.005" to 0.005"). Manufactured to ASME B18.3 specifications, it is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, ensuring adherence to environmental and safety regulations for industrial use.
