The DIN6923 titanium flange nut is a precision fastener combining a hexagonal head with an integrated washer-like flange, engineered to DIN specifications. It is made from Grade 5 titanium (Ti-6Al-4V) and offers a tensile strength over 900 MPa, while weighting around 40% less than steel counterparts. The built-in flange avoids the need for a separate washer and distributes the clamping force equally. The serrations beneath the head prevent loosening due to vibration. OEM & ODM Service Baoji Huacan enables OEM/ODM manufacturing, drawing-based customisation, whether you require standard sizes or entirely bespoke configurations.

Why Choose Our DIN6923 Titanium Flange Nut

Baoji Huacan is located in China “Titanium Valley” Baoji. We have more than 10 years expertise in titanium machining and more than 40 CNC machines for precise manufacturing. With a yearly capacity of over 1,000 tonnes, we have worked with more than 100 worldwide customers in the aerospace, marine and chemical sectors.

You get a supplier that not only knows production, but the technical specifications of your application. Every nut is produced under ISO 9001-certified quality management, from raw material verification to final shipment documentation.

DIN6923 Titanium Flange Nut

Parameter	Specification
Product Standard	DIN 6923
Material Grade	Grade 5 Titanium (Ti-6Al-4V); Grade 2 Available
Material Standards	ASTM, AMS, DIN, ISO (as applicable)
Thread Type	Metric Coarse or Fine Thread
Thread Size	Customized to Customer Requirements
Tensile Strength	≥ 900 MPa (Grade 5, subject to specification)
Density	4.43 g/cm³ (Grade 5 Titanium)
Weight Reduction	Approximately 40% Lighter than Steel
Surface Finish	Natural Titanium / Anodized / PVD Coating
Dimensions	Custom Manufacturing to Drawings
Available Grades	Grades 2, 5, 7, 9 and 23

Thread Size D			M5	M6	M8	M10	M12	M14	M16	M20
P	Pitch	Coarse thread	0.8	1	1.25	1.5	1.75	2	2	2.5
		Fine thread 1	/	/	1	1.25	1.5	1.5	1.5	1.5
		Fine thread 2	/	/	/	-1	-1.25	/	/	/
c	min		1	1.1	1.2	1.5	1.8	2.1	2.4	3
da	min		5	6	8	10	12	14	16	20
da	max		5.75	6.75	8.75	10.8	13	15.1	17.3	21.6
dc	max		11.8	14.2	17.9	21.8	26	29.9	34.5	42.8
dw	min		9.8	12.2	15.8	19.6	23.8	27.6	31.9	39.9
e	min		8.79	11.05	14.38	16.64	20.03	23.36	26.75	32.95
m	max		5	6	8	10	12	14	16	20
m	min		4.7	5.7	7.6	9.6	11.6	13.3	15.3	18.9
mw	min		2.2	3.1	4.5	5.5	6.7	7.8	9	11.1
s	max=nominal size		8	10	13	15	18	21	24	30
s	min		7.78	9.78	12.73	14.73	17.73	20.67	23.67	29.67
r	max		0.3	0.36	0.48	0.6	0.72	0.88	0.96	1.2

Motorsport & Aerospace Used in wheel hubs, suspension parts and exhaust mounts in F1 and MotoGP. Its low bulk helps reduce unsprung mass and its serrated flange can tolerate harsh engine vibration.

Marine & Offshore: Protects navigation systems, radar equipment & structural rigging on yachts & oil rigs. Titanium is resistant to galvanic corrosion and hence prevents stainless steel from seizing in splash zones.

Chemical & Industrial Processing: Ideal for flange connections in electrolysis tanks and petrochemical pipelines exposed to aggressive acids for DIN6923 titanium flange nut. The non-magnetic property also makes these nuts suitable for MRI equipment and semiconductor manufacturing tools.

Bicycle & Cycling

Motorcycle Modification

Automotive Performance & Racing

RC Models & Drones

Marine Equipment

Precision Equipment

The integrated flange eliminates washer loss during assembly and reduces total fastener count — a real advantage in complex, high-speed assembly environments.

The under-head serrations bite into the mating surfaces under torque to provide a mechanical locking action that resists loosening from vibration or dynamic stresses. This is crucial in applications like racing, aerospace and marine.

Titanium has a passive oxide layer which makes it inherently corrosion resistant to chlorides, sulphides and oxidising acids. These nuts don't corrode or seize up in saltwater or chemical situations where stainless steel often won't.

Material Features

Baoji Huacan has 40+ CNC lathes and machining centers including gantry machining equipment for big size components. We have a 4,000-ton hydraulic press and ring-rolling equipment for our forging capacity.

Annual machining capacity above 1,000 tonnes enables speedy prototype delivery and high-volume production runs. We do all the critical phases ourselves – forging, turning, threading, surface treatment and inspection. It gives you a single source supply chain.

Production begins with verified Grade 5 titanium billets, chemically confirmed via spectrometer analysis. Blanks are precision-forged using our 4,000-ton hydraulic press to achieve grain refinement and dimensional integrity.

CNC turning and threading are performed on 40+ advanced machining centers with tight tolerance control. Thread profiles are cut to 6H tolerance class, ensuring reliable engagement with mating bolts.

Post-machining, parts undergo deburring, surface finishing, and optional anodizing or PVD coating. Each batch is traceable from raw material to final inspection.


Material Preparation	Heading / Forging	Heat Treatment	Precision Machining

Thread Manufacturing	Cleaning	Inspection	Surface Treatment

Our multi-stage inspection process ensures every nut leaving the facility meets your specifications:

· Chemical spectrometry — verifies Ti-6Al-4V composition and excludes embrittlement-causing impurities

· Dimensional inspection — CMM, digital calipers, and Go/No-Go thread gauges to 6H tolerance

· Proof load testing — axial tensile loading to confirm thread strength without plastic deformation

· Surface & hardness inspection — checks for cracks, laps, and serration hardness

· Galling simulation — torque-tension testing to validate thread performance and lubricant effectiveness

Certifications

Raw material procurement, in-process control and final delivery of Baoji Huacan are ISO 9001 quality management system certified. Material traceability certificates (MTC), EN 10204 3.1 test reports and Certificates of Conformance (COC) are available upon request.

Every titanium flange nut we produce can be tailored to your exact project requirements. You can specify:

· Thread size and pitch — metric coarse or fine, custom pitch available

· Flange diameter and overall dimensions — based on technical drawings

· Material grade — Grade 2, 5, 7, 9, or 23 depending on strength and corrosion needs

· Surface finish — natural, anodized (including color coding), PVD, or MoS₂ anti-galling coating

· Custom marking — laser engraving, part numbers, or logo identification

· Batch size — prototype, small batch, and mass production all supported

Send us your drawings or specifications, and our engineering team will review and confirm production feasibility promptly.

Method	Application
Custom foam inserts	Protection for precision surfaces
Vacuum sealed bags + desiccants	Moisture and oxidation prevention
Wooden crates	Bulk shipment protection
Detailed labeling & documentation	Full traceability per batch

We offer air freight for urgent orders and sea freight for cost-effective bulk delivery worldwide.

Q: Does the titanium flange nut need a separate washer?

A：No. The integrated flange acts as the washer. Adding one separately can also reduce the grip of the under-head serrations.

Q: How do I prevent galling during installation?

A: Always use a copper or nickel based anti seize chemical. DLC or MoS2 coated nuts are also available for high speed installation settings.

Q: What is the difference between Grade 2 and Grade 5?

A: Grade 2 has better corrosion resistance (~350 MPa strength) Grade 5 (Ti-6Al-4V) has strong structural strength > 900 MPa. Choose Grade 5 for load-bearing use.

Q: Can these nuts be reused?

A：Generally yes, but inspect serrations and threads for deformation after each torque cycle. Replace if worn to maintain clamping reliability.

Q: Are titanium torque values the same as steel?

A：No. Use approximately 70–80% of equivalent steel dry torque values, adjusted for your lubricant, to prevent yielding the titanium threads.