S-93031A212 M12 DIN 439B Hex Nuts
Hex Nuts
Image may differ from product. See technical specification for details.
Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Exceptional corrosion resistance from 316 stainless steel construction, ideal for harsh chemical and marine environments
- Superior thread engagement with Class 6H thread fit ensuring precise, vibration-resistant connections in critical assemblies
- Space-saving thin profile design (6mm height) providing reliable fastening where clearance is limited
- Left-hand thread direction offering secure anti-loosening performance in rotating machinery applications
- Extra fine 1.25mm pitch threads delivering enhanced adjustment precision and load distribution
- Standardized DIN 439B compliance guaranteeing interchangeability and consistent quality across industrial applications
- Environmental regulation compliance with RoHS 3 and REACH standards for global supply chain compatibility
Professional Applications & Engineering Value
This M12 left hand hex nut with extra fine 1.25mm pitch addresses critical engineering challenges in precision machinery and corrosive environments. The 316 stainless steel material provides exceptional pitting resistance, making it ideal for chemical processing equipment, marine hardware, and food-grade applications where standard fasteners fail. The thin profile DIN 439B design enables compact assembly solutions without compromising strength, while the left-hand thread configuration prevents unintended loosening in counter-rotating systems. With Class 6H thread fit precision, this metric fastener maintains consistent clamping force in high-vibration industrial equipment, reducing maintenance intervals and improving operational reliability.
Specification Summary & Compliance
Manufactured to DIN 439B standards with M12x1.25mm extra fine metric threads in left-hand direction. Features Class 6H thread fit tolerance for precision engagement, 19mm width across flats, and 6mm height thin profile. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in regulated industries worldwide.
