Direct from Baoji Titanium Valley: High-integrity Grade 5 and Grade 2 components certified to rigorous DIN, ISO, and aerospace specifications with complete heat-lot traceability.
The DIN 6923 standard governs hexagon nuts with integrated flange elements, widely specified in heavy industrial engineering to distribute clamping pressure over an expanded surface area, eliminating the necessity for discrete flat washers. When fabricated from high-purity titanium alloys—specifically Grade 5 (Ti-6Al-4V, UNS R56400) and Grade 2 commercially pure titanium (UNS R50400)—DIN 6923 fasteners offer an unprecedented strength-to-weight ratio coupled with complete thermodynamic immunity to chloride pitting and crevice attack in aggressive Mediterranean coastal atmospheres.
In high-vibration dynamic systems, the integrated collar of a DIN 6923 nut significantly mitigates local stress concentration at joint interfaces. The widened bearing base distributes axial pre-loads uniformly across mating substructures such as carbon fibre laminates, cast marine bronze, and 7075-T6 aircraft alloys. Whether manufactured with a serrated bottom face for active rotational mechanical locking or a smooth face for frictionless precision torque control, our titanium DIN 6923 components provide mechanical consistency that traditional stainless steel (A2-70, A4-80) or cadmium-plated steel Class 8.8 and 10.9 assemblies fail to maintain over prolonged operational lifecycles.
Engineering properties comparing Grade 5 Ti-6Al-4V, Grade 2 Commercially Pure Titanium, and standard Marine Grade A4-80 Stainless Steel under high-stress operating criteria.
| Mechanical / Physical Property | Grade 5 Titanium (Ti-6Al-4V) | Grade 2 Titanium (CP-Titanium) | Marine Stainless (A4-80 / 316) | Engineering Significance |
|---|---|---|---|---|
| Ultimate Tensile Strength (UTS) | 895 – 1000 MPa | 345 – 450 MPa | 800 MPa | Gr5 exceeds Class 8.8 and matches Class 10.9 alloy steel. |
| Yield Strength (0.2% Offset) | 828 MPa | 275 MPa | 600 MPa | High elastic resistance to permanent plastic deformation under proof loads. |
| Elastic Modulus (Young's Modulus) | 114 GPa | 103 GPa | 193 GPa | Lower stiffness enhances compliance and bolt stretch under dynamic cyclic shock. |
| Density | 4.43 g/cm³ | 4.51 g/cm³ | 8.00 g/cm³ | 44.6% net mass reduction directly decreasing rotational inertia and unsprung mass. |
| Thermal Expansion Coefficient | 8.6 × 10⁻⁶ /K | 8.6 × 10⁻⁶ /K | 16.0 × 10⁻⁶ /K | Tight match with carbon composites and ceramic discs; mitigates thermal loosening. |
| Pitting Resistance Equivalent (PREN) | Immune (Passive TiO₂) | Immune (Passive TiO₂) | 23 – 25 (Vulnerable) | TiO₂ surface layer regenerates instantly in presence of oxygen or humidity. |
| Standard Fastener Applications | High-stress structural / drivetrain | Chemical tanks, light marine piping | General maritime superstructure | Optimal fastener selection depends on mechanical versus chemical priorities. |
The widened bearing area of DIN 6923 eliminates the indentation (brinelling) of softer mating parts, spreading proof stress over a perimeter 2.1 times greater than standard ISO 4032 hex nuts.
A self-healing rutile-anatase titanium dioxide boundary layer prevents electrochemical degradation, stress corrosion cracking (SCC), and pitting in marine splash zones and brackish channels.
Our DIN 6923 nuts feature micron-level thread precision and available PVD titanium nitride or MoS₂ solid lubricant coatings to ensure repeatable friction coefficients (μ = 0.12–0.15) without cold welding.
Qormi serves as Malta's central logistics and light engineering crossroads, directly interconnecting Grand Harbour shipyards, Luqa aviation engineering clusters, and industrial free zones.
Installed extensively in cathodic bonding brackets, exhaust collectors, through-hull piping, and rigging terminals where marine immersion accelerates galvanic decay of inferior steel.
Motorsport teams and bespoke fabrication workshops centered in Qormi and Marsa rely on Gr5 DIN 6923 serrated nuts for suspension uprights, titanium exhaust studs, and brake caliper mounts.
Supplied to high-pressure manifold joints and dosing valves at reverse osmosis plants in Ghar Lapsi, Pembroke, and Cirkewwa, withstanding hyper-saline discharge and chlorinated brine.
Positioned close to the Safi Aviation Park and Malta International Airport maintenance hangars, our lightweight fasteners provide critical weight savings for UAV brackets and structural fairings.
Industrial procurement in Qormi, Marsa, and the wider Maltese archipelago has undergone a strategic transition over the last decade. As superyacht refit facilities expand within the Grand Harbour Marina and Palumbo Shipyards, mechanical maintenance engineers are systematically phasing out conventional duplex and 316L stainless steel hardware in high-stress, high-salinity zones. The vulnerability of stainless steel to crevice corrosion under stagnant, warm seawater conditions (common in Mediterranean summer berths) has driven unprecedented demand for ASTM B348 compliant Grade 5 titanium fasteners.
Furthermore, local mechanical engineers, custom racing builders, and precision fabricators throughout Qormi emphasize supply chain velocity and documentation integrity. Sourcing directly from an established primary titanium manufacturer eliminates secondary distributor markups while securing essential mill certifications according to EN 10204 3.1. With European industrial carbon border mechanisms and lightweighting mandates tightening across the EU, the localized transition toward titanium fasteners is no longer purely an exotic motorsport choice—it is a functional standard for longevity, reduced life-cycle servicing cost, and structural reliability.
Yevzo Titanium Metal Co., Ltd. operates at the nucleus of global titanium manufacturing in Baoji, China. Since 2013, our integrated operations have delivered high-precision CNC turned parts, certified ASTM B348 bars, and cold-forged fasteners to demanding industrial buyers worldwide.
We combine raw material purity with Japanese multi-axis CNC Swiss machining and automated optical sorting. Our direct export infrastructure supports industrial businesses, precision tooling workshops, and maritime contractors in Qormi with flexible lot sizes, custom anodizing (PVD, electrolytic), and rapid DDP/CIF transit arrangements.
Engineered to precise tolerances (Class 6H internal thread tapping) according to DIN 6923 and ISO 4161 technical guidelines.
| Nominal Thread (d) | Pitch (P) mm | Flange Diameter (dc) max | Nut Height (m) max | Wrench Size (s) | Recommended Torque (Gr5, Dry) | Recommended Torque (Gr5, Anti-Seize) |
|---|---|---|---|---|---|---|
| M4 | 0.70 | 10.00 mm | 4.65 mm | 7.0 mm | 3.2 N·m | 2.4 N·m |
| M5 | 0.80 | 11.80 mm | 5.00 mm | 8.0 mm | 6.4 N·m | 4.8 N·m |
| M6 | 1.00 | 14.20 mm | 6.00 mm | 10.0 mm | 11.0 N·m | 8.2 N·m |
| M8 | 1.25 | 17.90 mm | 8.00 mm | 13.0 mm | 26.5 N·m | 19.8 N·m |
| M10 | 1.50 | 21.80 mm | 10.00 mm | 15.0 mm | 52.0 N·m | 39.0 N·m |
| M12 | 1.75 | 26.00 mm | 12.00 mm | 18.0 mm | 90.0 N·m | 67.5 N·m |
| M14 | 2.00 | 29.90 mm | 14.00 mm | 21.0 mm | 145.0 N·m | 108.0 N·m |
| M16 | 2.00 | 34.50 mm | 16.00 mm | 24.0 mm | 225.0 N·m | 168.0 N·m |
Clear, direct answers regarding material grades, import logistics, electrolytic corrosion, and technical parameters.
Partner directly with Baoji’s dedicated titanium manufacturing facility. Whether you need standard DIN 6923 hex flange nuts in M4–M20 for local inventory or bespoke CNC components machined to client blueprints, our application engineers provide full quotation packages, dimensional verification, and material certificates within 24 hours.
Direct Factory Support: Certified Ti-6Al-4V Grade 5 & Grade 2 stock, OEM branding, custom PVD color treatments, and global air/ocean export coverage serving Qormi and all industrial districts in Malta.
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