S-90519A827 M33 ASTM A108, DIN 439B, ISO 4035 Hex Nuts
Hex Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Enhanced corrosion resistance with black-oxide steel coating for extended service life in harsh industrial environments
- Secure left-hand thread engagement prevents loosening in counter-rotating applications where standard nuts would fail
- Space-saving thin profile (16.5 mm height) enables installation in tight clearance applications without compromising strength
- Reliable coarse thread performance with 3.5 mm pitch ensures quick assembly and reduced cross-threading risks
- Precision Class 6H thread fit guarantees consistent mating with compatible bolts for vibration-resistant connections
- Multi-standard compliance meets ASTM A108, DIN 439B, and ISO 4035 specifications for global project compatibility
- Environmental regulation compliance with RoHS 3 and REACH ensures safe usage in regulated industries
Professional Applications & Engineering Value
This M33 left-hand thread hex nut delivers critical engineering solutions for applications requiring reverse-thread security. The black-oxide steel construction provides superior corrosion protection in demanding environments like heavy machinery, conveyor systems, and rotating equipment where standard fasteners would deteriorate. The thin profile design (16.5 mm height) addresses space constraints in compact assemblies while maintaining full Class 04 strength performance. With its coarse 3.5 mm pitch and Class 6H thread fit, this nut ensures rapid installation and reliable engagement in high-vibration scenarios, making it ideal for maintenance-critical applications where left-hand threading prevents unintended loosening from counter-clockwise motion.
Specification Summary & Compliance
Manufactured to Class 6H thread tolerance with metric coarse threading (3.5 mm pitch) and external hex drive configuration. Complies with ASTM A108, DIN 439B, and ISO 4035 manufacturing standards. Dimensions: 50 mm width × 16.5 mm height. Meets RoHS 3 (2015/863/EU) compliance with exemption 6(a) and REACH (EC 1907/2006) requirements for industrial use.
