S-8077A299 3/8"-16 ASME B18.3 Shoulder Screws
Shoulder Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance with 316 stainless steel and black oxide finish, ideal for harsh industrial and marine environments
- Exceptional mechanical strength delivering 70,000 psi tensile and 35,000 psi shear strength for heavy-duty applications
- Precise alignment and smooth rotation ensured by the knurled head and standard shoulder fit with tight tolerances
- High thread reliability with Class 3A UNC coarse threads for secure fastening in high-vibration settings
- Easy installation and removal using the 1/4" hex drive socket head, reducing assembly time
- Compliance with industry standards including ASME B18.3, RoHS, and REACH for quality assurance and environmental safety
- Durable performance backed by Rockwell B79 hardness, ensuring long service life under demanding conditions
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw with black oxide finish addresses critical engineering challenges in machinery, automotive, and marine sectors where corrosion and high stress are concerns. The 3/8"-16 UNC thread with Class 3A fit provides secure, vibration-resistant connections, while the precise shoulder diameter and length facilitate accurate component alignment and rotational movement. Its knurled head enhances grip during manual adjustments, and the hex drive allows for efficient torque application. Ideal for pivots, axles, and spacers, this fastener ensures reliability in industrial applications, reducing maintenance needs and downtime.
Specification Summary & Compliance
This shoulder screw adheres to ASME B18.3 specifications, with Class 3A thread fit and tolerances for shoulder diameter (-0.004" to -0.002") and length (-0.005" to 0.005"). It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental and safety standards. Manufactured from 316 stainless steel with a black oxide finish, it offers consistent performance in corrosive settings, backed by mechanical properties including 70,000 psi tensile strength and Rockwell B79 hardness.
