DIN970 Hexagon Thick Nut Specifications
Parameter | Details |
Product Name | DIN970 Hexagon Thick Nut, Heavy Duty Reinforced Nut |
Standard | DIN970 German Industrial Standard (ISO4032 Upgraded Version) |
Material & Grade | Carbon Steel: Grade 8/10; Stainless Steel: A2-70(304), A4-80(316) |
Structural Feature | Thickened Height, Longer Thread Engagement, Higher Load Capacity, Vibration Resistant |
Surface Finish | Black Oxide, Electro-galvanized Zinc, Dacromet, Stainless Steel Passivation |
Size Range | M4-M39 Full Sizes In Stock, Custom Orders Supported |
Core Advantage | Anti-stripping, High Preload Force, Stable Fastening, Heavy-duty Adaptation |
Application | Heavy Machinery, Flange Connection, Hydraulic Equipment, Wind Power, Mining Machinery |
Certification | ISO9001, Material Test Report, Hardness Test, Salt Spray Report, Batch QC Certificate |
Package | Standard Export Carton & Pallet, Neutral Packaging & OEM Service |
Delivery Time | 3-7 days for stock sizes, 15-20 days for bulk customized orders |
DIN970 Product Core Advantages
Thickened Body for Higher Load Capacity
Compared with standard DIN934 nuts, DIN970 thick nuts adopt an upgraded thickened structure with longer thread engagement length. It disperses thread pressure effectively under heavy load and high preload conditions, avoiding thread shearing, stripping and failure, providing far stronger bearing capacity than ordinary nuts.
Full Universal Compatibility
It shares the same across-flat dimension and thread standard with DIN934 nuts, compatible with all standard wrenches and metric bolts. No need to replace tools or adjust installation procedures. It can directly replace standard nuts for equipment upgrading with zero adaptation cost.
Excellent Vibration & Fatigue Resistance
The thickened structure features higher rigidity and uniform stress distribution. It can withstand long-term alternating load and high-frequency vibration impact without loosening, deformation or fatigue failure, greatly improving equipment operation stability and service life.
Full Grade & Process Coverage
Covers Grade 8/10 carbon steel and 304/316 stainless steel full series. Equipped with diversified surface treatments to adapt to indoor heavy-duty, outdoor open-air, humid salt spray and mild acid-base environments, meeting all industrial fastening demands.
Grade 8 Carbon Steel DIN970 Nut (General Heavy-duty Type)
Made of high-quality tempered carbon steel with uniform hardness and stable bearing performance. It delivers high cost performance, suitable for general heavy machinery, steel structure flanges and conventional heavy assembly scenarios, serving as the mainstream bulk product for industrial matching and foreign trade wholesale.
Grade 10 Carbon Steel DIN970 Nut (Ultra-high Strength Type)
Reinforced alloy steel tempering process greatly improves tensile strength, extrusion resistance and fatigue resistance. Matched with 10.9/12.9 high-strength bolts, it is specially designed for wind power equipment, mining machinery, hydraulic valves and other extreme high-load and high-vibration working conditions.
304 Stainless Steel DIN970 Nut A2-70 (Anti-corrosion Heavy-duty Type)
Authentic 304 stainless steel features oxidation resistance, rust and corrosion resistance. It adapts to outdoor heavy steel structures, humid workshop equipment and water treatment heavy assembly, maintaining stable fastening performance without rusting or deformation for long-term use.
316 Stainless Steel DIN970 Nut A4-80 (High-end Anti-corrosion Type)
Molybdenum-containing 316 stainless steel has superior salt spray, seawater and acid-base corrosion resistance. It is widely used in coastal engineering, chemical machinery and marine heavy-duty equipment, realizing dual guarantees of heavy load fastening and long-term anti-corrosion.
DIN970 VS DIN934 VS DIN439 Difference
DIN934 Standard Nut: Standard height, short thread engagement, only suitable for light load and static assembly, easy to strip under heavy load.
DIN970 Thick Nut: Same wrench & thread size, thicker height, longer engagement, higher load capacity and vibration resistance, exclusive for heavy-duty industrial scenarios.
DIN439 Thin Nut: Ultra-thin body, for limited space and low-load assembly only, not applicable for heavy fastening.
Production Process
Graded Material Selection: Classify raw materials by steel grade to ensure consistent mechanical properties and batch quality.
Precision Cold Heading Forming: Automatic integral forming ensures regular hexagon, flat end surface and accurate thickened size without defects.
High-precision Tapping: Standard full-profile thread ensures smooth meshing and perfect compatibility with standard bolts.
Graded Heat Treatment: Exclusive tempering process for Grade 8/10 steel to optimize hardness, toughness and structural rigidity.
Custom Anti-corrosion Treatment: Multiple surface finishes meet different rust-proof and weather resistance requirements.
Full-batch Inspection: Strict dimensional, hardness, bearing capacity and salt spray tests with complete factory certification.
Application Industries
Construction Machinery: Heavy equipment structural fastening for excavators, loaders and cranes.
New Energy Wind Power: Long-term stable fastening for wind power towers and bracket facilities.
Hydraulic Equipment: High-pressure flange connection and fastening for hydraulic valves and pump equipment.
Mining Machinery: High-strength matching for mining and tunneling heavy-duty equipment.
Steel Structure Engineering: Reinforced assembly for large outdoor steel structures and bridge supports.
Chemical & Marine Equipment: Corrosion-resistant heavy fastening for harsh chemical and marine environments.
Why Choose Our DIN970 Thick Nuts
We specialize in the production of German standard high-strength fasteners, focusing on mass supply of DIN970 heavy-duty thick hex nuts. Our full product range covers Grade 8/10 carbon steel and 304/316 stainless steel. Manufactured strictly according to DIN970 standards, our thickened nuts feature precise size, accurate thread and stable load capacity, completely different from ordinary DIN934 standard nuts and DIN439 thin nuts. With excellent vibration resistance, fatigue resistance and anti-stripping performance, they are ideal for all heavy-duty industrial working conditions. Sufficient stock, customized processes and bulk orders are available, providing reliable heavy-load fastening solutions for global industrial customers.
If you are looking for high-quality DIN970 hex thick nuts, Grade 8/10 heavy-duty thick nuts and stainless steel anti-corrosion thick nuts, feel free to contact us for professional technical support and accurate quotation.
