Skip to main content Skip to search Skip to main navigation

DIN 439B Zinc Plated Steel Metric Hex Jam Nuts

Filter products

Why Choose DIN 439B Zinc Plated Steel Metric Hex Jam Nuts?

Our DIN 439B zinc plated steel metric hex jam nuts at AlbanyCountyFasteners.com, also known as metric zinc jam nuts, are low-profile hex nuts, about 2/3 the thickness of standard hex nuts, designed for locking or space-constrained applications. Featuring a hexagonal shape for easy gripping with a wrench or pliers, these nuts are made from low carbon steel with a zinc plating, offering moderate corrosion resistance for indoor or dry environments. They are tightened against another nut to lock without clamping, using the “double nut” method. Available in metric sizes like M4, M5, M6, M8, M10, and M12, they meet DIN 439B, ISO 4035, IFI tolerances, REACH, and RoHS standards and are ideal for automotive, machinery, and industrial projects requiring cost-effective, metric-compatible locking.

  • Moderate Corrosion Resistance: Zinc plating protects against rust in dry or indoor settings.
  • Low Profile: Thinner design fits tight spaces where standard nuts won’t.
  • Metric Compatibility: Designed for metric bolts and screws per DIN 439B standards.
  • High Standards: Compliant with DIN 439B and ISO 4035 for reliability.

Applications for DIN 439B Zinc Plated Steel Metric Hex Jam Nuts

Metric zinc jam nuts are designed for projects requiring a low-profile, corrosion-resistant locking solution with metric bolts or screws to secure assemblies or fit tight spaces. Their versatility makes them suitable for:

  • Automotive and machinery adjustments
  • Industrial equipment and assemblies
  • Electrical and plumbing fixtures
  • Construction and structural components

Frequently Asked Questions (FAQ)

What are DIN 439B zinc plated steel metric hex jam nuts?

DIN 439B zinc plated steel metric hex jam nuts are low-profile, hexagonal nuts made from low carbon steel with a zinc coating, used as locknuts by tightening against another nut or in tight spaces with metric fasteners, offering moderate corrosion resistance.

How do DIN 439B zinc plated steel metric hex jam nuts differ from A2 stainless steel metric hex jam nuts?

DIN 439B zinc plated steel metric hex jam nuts are cost-effective with moderate corrosion resistance for dry environments, while A2 stainless steel offers superior corrosion resistance for wet or harsh settings.

Are DIN 439B zinc plated steel metric hex jam nuts suitable for outdoor use?

They provide moderate corrosion resistance for dry or sheltered outdoor settings, but for marine or highly corrosive environments, consider A4 (316 equivalent) stainless steel jam nuts for better durability.

How do I install DIN 439B zinc plated steel metric hex jam nuts for locking?

Thread the first jam nut onto the metric bolt, tighten it to the desired position, then thread a second nut against it. Tighten both nuts toward each other using wrenches to lock the assembly.

How do I choose the right size DIN 439B zinc plated steel metric hex jam nut?

Select based on the metric bolt or screw’s thread size, such as M4, M6, or M10. Ensure the nut’s thread pitch matches the fastener. Check sizing charts or consult our team for guidance.