S-91273A823 M8 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 corrosion resistance with 18-8 stainless steel construction and black oxide finish, ideal for harsh industrial environments
- Precise component alignment with 25mm shoulder length and tight diameter tolerance for accurate assembly and reduced wear
- High-strength performance delivering 70,000 psi tensile strength and 35,000 psi shear strength for demanding applications
- Secure installation and removal with 4mm hex socket drive and knurled head for superior torque transmission and grip
- Reliable thread engagement with Class 5g6g metric coarse threads ensuring consistent fastening in high-vibration settings
- Enhanced durability from Rockwell B55 hardness, providing excellent resistance to deformation under load
- Global compliance assurance meeting RoHS 3 and REACH regulations for safe use in international markets
Professional Applications & Engineering Value
This M8 shoulder screw is engineered to address critical alignment and durability challenges in industrial applications. The 25mm shoulder length provides precise locating and pivot functions in machinery, reducing misalignment and component wear. Manufactured from 18-8 stainless steel with a black oxide finish, it offers superior corrosion resistance in moist or chemically exposed environments. The Class 5g6g thread fit and coarse 1.25mm pitch ensure quick assembly and reliable performance in high-vibration systems like automotive jigs, conveyor systems, and robotic arms. Combined with a knurled head and hex socket drive, it enables secure handling and efficient maintenance cycles, making it an essential precision shoulder bolt for OEMs and maintenance teams.
Specification Summary & Compliance
This M8x1.25 shoulder screw features precision metric threads with Class 5g6g fit and a shoulder diameter tolerance of -0.04 to -0.01 mm for exact alignment. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental and safety standards are met for industrial use worldwide.
