Top China Titanium Hex Bolts Manufacturer & Exporter for the Geneva Market

Shipments to Geneva are typically dispatched via express air courier (DHL Express / FedEx Priority / Air Freight to Geneva Airport GVA - Cointrin) under Incoterms DDP (Delivered Duty Paid) or DAP. Switzerland applies specific customs tariff headings for titanium screws and bolts (HS Code: 8108.9000 or 7318 equivalent classification). We supply complete commercial invoices, packing lists with net/gross weights, and Certificate of Origin (Form A or COO) documentation. Swiss Value Added Tax (MWST / TVA of 8.1%) is handled smoothly through your customs account or directly via the courier clearance broker, ensuring immediate release without border delays.

Titanium exhibits natural surface friction that, under high clamping torque, can strip oxide films and cause galling when mated against titanium or stainless tapped holes. To eliminate this issue in critical Geneva assemblies, we recommend three complementary practices: (1) Use rolled threads with a controlled surface roughness Ra ≤ 0.4 μm; (2) Apply a specialist molybdenum disulfide (MoS₂), graphite, or copper-based anti-seize paste prior to assembly; (3) For dry cleanroom applications (such as vacuum or horological environments), specify our custom Physical Vapor Deposition (PVD) DLC (Diamond-Like Carbon) or TiN micro-coatings, which lower the friction coefficient down to 0.10 – 0.15 without adding perceptible dimensional bulk.

Yes, but with precise engineering consideration. Ti-6Al-4V Grade 5 has a tensile strength of 895 to 1000 MPa and yield strength ≥ 828 MPa, making it directly equivalent to property class 8.8 (800 MPa tensile / 640 MPa yield) and very close to class 10.9 (1000 MPa tensile / 900 MPa yield). However, titanium's elastic modulus is approximately 114 GPa—about half that of steel (206 GPa). This lower modulus gives titanium double the elastic elongation under tension, which is exceptionally beneficial for dampening shock loads and thermal expansions. When replacing high-stress class 12.9 fasteners in primary engine internals or extreme shear brake calipers, we advise reviewing thread engagement depth (minimum 1.5 × nominal bolt diameter in aluminum) and joint clamp calculations.

Because titanium has a different friction coefficient than steel, tightening torque depends heavily on lubrication. When dry, titanium requires approximately the same torque as grade 8.8 steel. However, since anti-seize compound should virtually always be applied, the lubricated torque value must be reduced by approximately 15% to 20% compared to standard dry steel values to avoid over-stretching the fastener shank. We provide dedicated tightening torque calculation charts based on nominal bolt diameter (M4 through M24) and clamp load requirements for your engineering files.

Yes. Approximately 60% of our production consists of custom parts machined to customer 2D and 3D drawings (STEP, IGES, DWG, PDF). Our engineering team in Baoji reviews tolerances, thread pitch, tool access, and chamfers, providing a Machinability Feedback Report within 4 hours. Minimum order quantities (MOQs) for custom CNC turned hex bolts start at just 100–300 pieces for prototyping and production validation, scaling to hundreds of thousands of units for continuous industrial replenishment.

We provide chemical clean raw finish, precision vibratory tumbling, mirror hand-polishing, matte micro-bead blasting, and high-voltage electrolytic anodizing. Our anodization utilizes precise voltage regulation across bath tanks to produce uniform interference oxide colors (Gold, Electric Blue, Violet, Green, Burnt Rainbow) without synthetic dyes, pigments, or weight penalties. For extreme wear environments, we offer PVD nitride and carbon coatings that achieve surface hardness ratings exceeding 2000 HV.