S-97713A143 M20 DIN 609 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
- Enhanced load-bearing capability with a 21mm shoulder diameter providing precise alignment and reduced wear in rotating assemblies
- Superior tensile strength of 120,000 psi ensures reliable performance under high-stress industrial conditions
- Rockwell C20 hardness delivers excellent durability and resistance to deformation in demanding applications
- Class 6g thread fit guarantees consistent, vibration-resistant fastening with standard metric components
- External hex drive design allows for high-torque installation and easy maintenance with common tools
- Full RoHS 3 and REACH compliance meets stringent environmental regulations for global industrial use
- DIN 609 certification ensures dimensional accuracy and interchangeability in European machinery applications
Professional Applications & Engineering Value
This M20x2.5 shoulder screw solves critical alignment challenges in industrial machinery where precise rotational clearances are essential. The 105.5mm shoulder length acts as a built-in spacer, eliminating the need for additional bushings in conveyor systems, robotic arms, and precision gear assemblies. Manufactured from high-strength steel with coarse metric threading, it maintains structural integrity while resisting loosening under cyclic loads. The smooth hex head with external drive accommodates standard wrenches for rapid assembly in maintenance-heavy environments, while the right-hand thread direction ensures compatibility with conventional tightening procedures. This engineered solution reduces component count while improving alignment accuracy in automated manufacturing equipment.
Specification Summary & Compliance
This metric shoulder screw features Class 6g thread tolerance with 21mm shoulder diameter (tolerance: 0.002-0.015mm) and 105.5mm shoulder length (tolerance: -1 to 0mm). Manufactured to DIN 609 specifications with M20x2.5 coarse thread spacing. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial applications.
