High-precision Hex Jam Nuts from a leading China factory. Our professional suppliers provide durable, corrosion-resistant locking nuts for industrial machinery, ensuring secure fastening and vibration resistance. Direct factory pricing available.
Share:
Our premium Hex Jam Nuts are engineered for high-precision locking applications, providing a reliable solution to prevent loosening caused by vibration or torque. Designed with a lower profile than standard hex nuts, these fasteners are ideal for jamming against a primary nut to ensure a permanent, secure fit in critical industrial assemblies.
Manufactured in our own factory to meet stringent international standards, these jam nuts are available in a wide range of materials, from high-strength carbon steel to corrosion-resistant stainless steel. Whether you are working on heavy-duty machinery or intricate hardware systems, our Hex Jam Nuts deliver the structural integrity and durability required for long-term performance.
| Size Range | M8 - M30 | Manufacturing | Direct Factory Production |
|---|---|---|---|
| Standard Compliance | ISO / DIN / ANSI / ASME / ASTM / BS / AS / JIS | Material Options | Q235 / 35K / 45K / 40Cr / B7 / 20MnTiB / A2 / A4 |
| Material Type | Carbon Steel & Stainless Steel | Property Grade | 4.8, 8.8, 10.9 |
| Surface Finish | BZP, YZP, Zinc Plated, or Customizable | Sample Policy | Free Samples Available |
| Minimum Order (MOQ) | 1,000 PCS | Packaging Options | Carton (ctn), Pallet (plt), or Customizable |
Engineered specifically to act as a locking mechanism, eliminating unwanted rotation in high-vibration environments.
Available in YZP, BZP, and stainless steel (A2/A4) to ensure longevity in harsh atmospheric conditions.
Fully compliant with DIN, ISO, and ASME standards for seamless integration into any international project.
From grade 4.8 to ultra-strong 10.9, providing the exact tensile strength needed for your specific load.
Strict factory quality control ensures tight tolerances and perfect thread engagement every time.
Flexible surface treatments and packaging tailored to your brand or logistics requirements.
Optimized stock management for all M8-M30 sizes to ensure rapid fulfillment.
Eliminate middlemen with direct-from-factory production and pricing.
Rigorous testing for Grade 8.8 and 10.9 strength specifications.
Real-time updates from production to shipping for all bulk orders.
Professional packing in cartons or pallets for secure global transit.
Expert guidance on selecting the right material (e.g., B7 vs 40Cr) for your use case.
| Metric | Standard Market Fasteners | Top Fastener Solutions |
|---|---|---|
| Durability | Average / Variable | High-Grade / Consistent |
| Lead Time | Longer (Distributor) | Shorter (Factory Direct) |
| Cost-Efficiency | Marked-up Retail | Competitive Bulk Pricing |
| Quality Control | Random Sampling | Strict ISO/DIN Compliance |
| Customization | Limited / None | Full Surface & Packing Options |
A jam nut is thinner than a standard nut. It is used as a locking nut by tightening it against a standard nut to lock the assembly in place through friction.
For saltwater or highly corrosive environments, we recommend Stainless Steel A4 (Grade 316) due to its superior molybdenum content for pitting resistance.
Yes, samples are free. We encourage clients to test our precision and material grade before placing bulk orders.
Our standard minimum order quantity (MOQ) is 1,000 pieces, which applies to both standard and customizable surface options.
Absolutely. Our factory is equipped to produce jam nuts according to ISO, DIN, ANSI, ASME, ASTM, BS, AS, and JIS standards.
We offer carbon steel jam nuts in grades 4.8, 8.8, and 10.9, depending on the tensile strength required for your application.
Hit enter to search or ESC to close