S-94361A376 1/2"-20 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
- Exceptional load-bearing capacity with 140,000 psi tensile strength, ideal for high-stress industrial assemblies.
- Superior corrosion resistance from the black oxide finish, extending service life in harsh environments.
- Precise thread engagement with Class 3A UNF fine threads, ensuring reliable, vibration-resistant connections.
- Secure installation and removal via the 5/16" hex drive and knurled head, providing excellent grip and torque transmission.
- Accurate component alignment due to the 5/8" shoulder diameter with tight tolerances, minimizing assembly play.
- High durability from alloy steel construction and Rockwell C32 hardness, resisting wear and deformation.
- Compliance with environmental regulations, meeting RoHS 3 and REACH standards for safe, global use.
Professional Applications & Engineering Value
This alloy steel shoulder screw is engineered to address critical alignment and strength challenges in precision machinery. The 1/2"-20 UNF fine thread with Class 3A fit provides superior resistance to loosening under dynamic loads, making it ideal for applications like rotating shafts, pivoting mechanisms, and automated equipment. The black oxide finish enhances corrosion resistance, while the knurled socket head and hex drive ensure secure installation in confined spaces. With a robust shoulder diameter of 5/8" and controlled tolerances, it maintains exact component positioning, reducing wear and improving operational reliability in industrial settings.
Specification Summary & Compliance
This shoulder screw adheres to UNF thread standards with a Class 3A thread fit for high precision. Key dimensions include a shoulder diameter of 5/8" (tolerance: -0.004" to -0.002") and shoulder length of 1-1/2" (tolerance: -0.005" to 0.005"). It is manufactured from alloy steel with a tensile strength of 140,000 psi and hardness of Rockwell C32. The product is RoHS 3 (2015/863/EU) compliant under exemption 6(a) and REACH (EC 1907/2006) compliant, ensuring environmental safety.
