DIN963 m3 titanium bolts are high-precision metric fasteners featuring a slotted flat countersunk head with a 90° angle and M3 × 0.5mm thread pitch. Made from Ti-6Al-4V (Grade 5), each bolt weighs approximately 0.6g — roughly 45% lighter than steel equivalents. Baoji Huacan produces these according to DIN963 standard, with polished or colour anodised finishes. We have over 10 years of expertise in titanium machining and more than 40 CNC machines. We provide OEM/ODM manufacture for either standard or entirely bespoke configurations to meet your precise technical demands.

Parameter	Details
Standard	DIN 963
Thread Size	M3 × 0.5 mm (metric coarse thread)
Head Type	Slotted Countersunk Head; 90° countersink angle, subject to applicable standard and drawing
Material	Titanium Grade 5 (Ti-6Al-4V); Grades 2, 7, 9, and 23 available upon request
Dimensions	Nominal length: 10 mm; other lengths available according to drawing and manufacturing feasibility
Surface Finish	Machined finish, polished, or color anodized, subject to material grade and application requirements
Customization & Quality	Drawing-based production; thread tolerance and dimensional requirements confirmed against the applicable standard and customer specifications

Thread Size d		M1	M1.2	M1.4	M1.6	M2	M2.5	M3	(M3.5)	M4	M5	M6	M8	M10	M12	(M14)	M16	(M18)	M20
P	Pitch	0.25	0.25	0.3	0.35	0.4	0.45	0.5	0.6	0.7	0.8	1	1.25	1.5	1.75	2	2	2.5	2.5
a	max	0.5	0.5	0.6	0.7	0.8	0.9	1	1.2	1.4	1.6	2	2.5	3	3.5	4	4	5	5
dk	max=nominal size	1.9	2.3	2.6	3	3.8	4.7	5.6	6.5	7.5	9.2	11	14.5	18	22	25	29	33	36
dk	min	1.76	2.06	2.46	2.86	3.5	4.4	5.3	6.14	7.14	8.84	10.57	14.07	17.57	21.48	24.48	28.48	32.38	35.38
k	max	0.6	0.72	0.84	0.96	1.2	1.5	1.65	1.93	2.2	2.5	3	4	5	6	7	8	9	10
n	max	0.45	0.5	0.5	0.6	0.7	0.8	1	1	1.2	1.51	1.91	2.31	2.81	3.31	3.31	4.37	4.37	5.37
n	min	0.31	0.36	0.36	0.46	0.56	0.66	0.86	0.86	1.06	1.26	1.66	2.06	2.56	3.06	3.06	4.07	4.07	5.07
r	max	0.1	0.12	0.14	0.16	0.2	0.25	0.3	0.35	0.4	0.5	0.6	0.8	1	1.2	1.4	1.6	1.8	2
t	max	0.3	0.35	0.4	0.45	0.6	0.7	0.85	1	1.1	1.3	1.6	2.1	2.6	3	3.5	4	4.5	5
t	min	0.2	0.25	0.28	0.32	0.4	0.5	0.6	0.7	0.8	1	1.2	1.6	2	2.4	2.8	3.2	3.6	4
x	max	-	-	-	0.9	1	1.1	1.25	1.5	1.75	2	2.5	3.2	3.8	4.4	5	5	6.3	6.3

Aerospace/UAV Flight controllers and circuit boards in FPV drones and lightweight UAVs are often attached using the M3 size. Titanium lowers aircraft weight and resists thread shearing from high-frequency vibration.

Diving computers, hull sensors, and subsea enclosures. Rust leaks cause stainless steel 304/316 fasteners to fail in high-salt environments. These bolts prevent it.

Robotics & Precision Automation: Low-mass titanium improves servo response time in high-speed mechanisms, while the flat countersunk head lowers mechanical interference in robotic arm joints and panel skin.

Electronics & RC Models: Widely used in precise electronic enclosures, RC chassis, and lightweight structural assemblies where weight, corrosion resistance, and clean aesthetics are needed concurrently for DIN963 m3 titanium bolts.

DIN963 m3 titanium bolts Application.jpg

Bicycle Components

Marine Equipment

Precision Instruments

Lightweight: Approximately 45% lighter than equivalent steel bolts — critical for UAV frames and precision assemblies
Non-Magnetic: Safe for use near avionics, MRI environments, and sensitive electronics
Flush Fitment: 90° countersunk head sits flat with the mating surface, eliminating protrusion
Thermal Stability: Maintains structural integrity from cryogenic temperatures up to approximately 400°C
Corrosion Resistance: Highly resistant to saltwater, chemicals, and galvanic environments

Material Features

Our facility in Baoji — China's recognized titanium production hub — operates 40+ CNC lathes and machining centers including gantry systems. Annual production capacity exceeds 1,000 tons of finished titanium components.

We support prototype runs, small batch orders, and high-volume production without compromising dimensional accuracy or surface consistency. Lead times are flexible based on order size and customization complexity.


Material Preparation	Heading / Forging	Heat Treatment	Precision Machining

Thread Manufacturing	Cleaning	Inspection	Surface Treatment

Each batch of the product undergoes the following inspection protocol:

PMI (XRF): Confirms alloy grade before machining begins
Thread Gauging: Go/No-Go ring gauges verify M3 × 0.5mm pitch and 6g thread tolerance
Dimensional Check: CMM and micrometers verify head angle, slot depth, and bolt length
Mechanical Testing: Tensile strength verified to exceed 895 MPa for Grade 5 material
Visual Inspection: Optical sorting detects burrs, slot deformation, or surface defects
Surface Inspection: Roughness testing confirms finish specification compliance

Certifications

Our facility is ISO 9001 quality management system certified, and this encompasses the entire production process from raw material intake to final inspection and shipment. All products can be supplied with material test certificates (MTC), EN10204 3.1 mill certificates and certificates of conformance (COC) upon request.

You can specify thread length, overall bolt length, surface finish color, and head geometry based on your drawings or application requirements.

We support laser marking and CNC engraving for part number identification or custom branding. Surface finishes include natural titanium, polished, and multi-color anodizing.

OEM and ODM production is fully supported. Send your technical drawing or specification sheet to Joy@hc-titanium.com and our engineering team will review and respond promptly.

Need custom DIN963 m3 titanium bolts for your next project? Contact us at Joy@hc-titanium.com — fast response guaranteed.