DIN 6921 M10 Titanium Bolts – Hexagon Flange Fasteners for High-Performance Applications

DIN 6921 m10 titanium bolts from Baoji Huacan New Metal Materials Co., Ltd. are precision-engineered hexagon flange fasteners made from Ti-6Al-4V (Grade 5) titanium alloy. With a tensile strength of ≥1000 MPa and a density of just ~4.43 g/cm³ — roughly 45% lighter than steel — these bolts deliver outstanding strength-to-weight performance. The integrated circular flange distributes clamping load over a wider surface, eliminating the need for a separate washer. Available in lengths from 15–120mm with M10 × 1.5mm thread, and customizable to your exact drawings or specifications.

Parameter	Details
Standard	DIN 6921
Material	Titanium Grade 5 (Ti-6Al-4V)
Thread Size	M10 × 1.5 mm
Length Range	15–120 mm (custom lengths available)
Head Type	Hexagon Flange Head
Thread Tolerance	6g, ISO 4759-1 / Product Grade A
Tensile Strength	≥895 MPa (Grade 5; requirement can be specified per order)
Surface Finish	Plain / Polished / Anodized
Available Grades	Grade 2 / Grade 5 / Grade 7 / Grade 9 / Grade 23
Customization	Custom dimensions, thread specifications and finishes available according to drawings or requirements

Screw Thread			M5	M6	M8	M10	M12	M14	M16	M20
d
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	/	/	/
b	L≤125		16	18	22	26	30	34	38	46
	125＜L≤200		/	/	28	32	36	40	44	52
	L＞200		/	/	/	/	/	/	57	65
c	min		1	1.1	1.2	1.5	1.8	2.1	2.4	3
da	Form A	max	5.7	6.8	9.2	11.2	13.7	15.7	17.7	22.4
da	Form B	max	6.2	7.4	10	12.6	15.2	17.7	20.7	25.7
dc	max		11.8	14.2	18	22.3	26.6	30.5	35	43
ds	max		5	6	8	10	12	14	16	20
ds	min		4.82	5.82	7.78	9.78	11.73	13.73	15.73	19.67
du	max		5.5	6.6	9	11	13.5	15.5	17.5	22
dw	min		9.8	12.2	15.8	19.6	23.8	27.6	31.9	39.9
e	min		8.71	10.95	14.26	16.5	17.62	19.86	23.15	29.87
f	max		1.4	2	2	2	3	3	3	4
k	max		5.4	6.6	8.1	9.2	11.5	12.8	14.4	17.1
k1	min		2	2.5	3.2	3.6	4.6	5.1	5.8	6.8
r1	min		0.25	0.4	0.4	0.4	0.6	0.6	0.6	0.8
r2	max		0.3	0.4	0.5	0.6	0.7	0.9	1	1.2
r3	min		0.1	0.1	0.15	0.2	0.25	0.3	0.35	0.4
r4	≈		3	3.4	4.3	4.3	6.4	6.4	6.4	8.5
s	max=nominal size		8	10	13	15	16	18	21	27
s	min		7.78	9.78	12.73	14.73	15.73	17.73	20.67	26.67
t	max		0.15	0.2	0.25	0.3	0.35	0.45	0.5	0.65
t	min		0.05	0.05	0.1	0.15	0.15	0.2	0.25	0.3

M10 diameter benefits Motorsport & Automotive brake calliper mounts, suspension linkages and engine covers with lower unsprung weight and strong shear strength.

Marine & Subsea: Deck hardware, propulsion components and electronics enclosures exposed to stagnant saltwater or salt spray will be corrosion free unlike 316 stainless steel equivalents.

Aerospace & UAV: During airframe assembly and payload securing in high-vibration conditions, serrated flange variations and titanium’s excellent fatigue resistance avoid failure beyond flight cycles.

Construction & Industrial: Structural connections where weight reduction and corrosion resistance improve long-term reliability and maintenance intervals.

Applications of DIN 6921 M10 Titanium Bolts

Motorcycles and Automotive Aftermarket

Marine and Offshore Engineering

Bicycles and Sporting Equipment

Feature	DIN 6921 M10 Titanium	Grade 10.9 Steel	316 Stainless Steel
Material	Ti-6Al-4V (Grade 5)	Alloy Steel	AISI 316 Stainless Steel
Weight	Lightweight — ~43% lower density than steel	Baseline	~44% higher density than Ti
Typical Tensile Strength	≥895 MPa*	≥1,040 MPa	~515 MPa
Corrosion Resistance	Excellent	Low without protective coating	Excellent
Strength-to-Weight Ratio	Excellent	Moderate	Moderate
Magnetic	Non-magnetic	Magnetic	Generally non-magnetic
Galling / Seizing	Requires proper installation	Low risk	Higher risk
Flange Design	Integral flange — no separate washer required	Integral flange — no separate washer required	Integral flange — no separate washer required
Temperature Capability	Suitable for many applications up to ~400°C*	Application-dependent	Generally suitable for higher-temperature applications than Ti

Material Features

Each bolt starts with verified Ti-6Al-4V bar stock, checked by spectrometer for chemical composition. Forging and precision CNC machining shape the hexagon head and flange geometry to DIN 6921 dimensional tolerances.

Thread rolling — not cutting — is used for all M10 threads. This follows the alloy's natural grain structure, delivering significantly higher fatigue resistance than cut threads. That matters especially in structural load-bearing applications.

Post-machining surface treatments including polishing and anodizing are applied based on your specified finish requirements.


Material Preparation	Heading / Forging	Heat Treatment	Precision Machining

Thread Manufacturing	Cleaning	Inspection	Surface Treatment

Quality is verified at every production stage — not just at final inspection.

Raw material: Spectrochemical analysis confirms Ti-6Al-4V composition, monitoring oxygen and iron levels to prevent embrittlement. Supplier certifications are checked before material enters production.

In-process: Dimensional checks and process validations occur throughout forging and machining to maintain tight tolerances.

Thread inspection: Go/No-Go gauges (6g tolerance class) verify thread form and fit on every batch.

Mechanical testing: Tensile testing (breaking load) and Vickers Hardness (HV30) are performed on random batch samples.

Surface integrity: Fluorescent Dye Penetrant Inspection (DPI) detects micro-cracks formed during forging or thread rolling.

Final review: Each shipment includes complete inspection reports, material traceability records, and product certificates.

Certifications

· ISO 9001 Quality Management System Certified

· Material Test Certificates (MTC) available

· EN 10204 3.1 certification available upon request

· COC (Certificate of Conformance) available per order

Every order for DIN 6921 m10 titanium bolts can be tailored to your exact requirements. Options include:

· Thread customization: Pitch, tolerance class, metric or unified thread forms

· Length customization: 15–120mm standard range; other lengths per drawings

· Surface finish: Plain, polished, or anodized (color options available)

· Flange type: Smooth or serrated

· Material grade: Grade 2, 5, 7, 9, or 23 based on your strength and corrosion requirements

· Laser marking / CNC engraving: Part numbers, logos, or batch codes

· OEM/ODM: Full drawing-based production supported

Send your drawings or specifications to Joy@hc-titanium.com for a tailored quote.

Packaging Type	Details
Component Protection	Protective bags and separators to prevent scratches, thread damage, and surface contact
Moisture Control	Moisture-resistant packaging with desiccants available
Bulk Packaging	Bolts packed securely in strong export cartons according to order quantity
Custom Packaging	Individual packaging, separators, or special packaging available upon request
Documentation & Labeling	Part number, material grade, size, quantity, batch information, MTC and inspection reports available

Shipping options include air freight for urgent orders and sea freight for cost-effective bulk shipments. All packaging is designed to protect titanium surfaces from transit damage.

Ready to source precision-engineered titanium fasteners like DIN 6921 m10 titanium bolts? Email Joy@hc-titanium.com with your specifications or drawings — fast response guaranteed.