Titanium Cap Bolts Exporter & Exporters serving the Sapporo market

Our CNC machining centers are calibrated to execute threads and socket head dimensions according to DIN 912, ISO 4762, and JIS B 1176 standards interchangeably. For thread fit classes, we produce 6g tolerance classes per JIS B 0209 (ISO metric screw threads), ensuring smooth engagement with domestic Japanese tapped holes, threaded inserts, and casting tapped bosses without galling or excessive radial play.

In galvanic series charts, titanium is noble relative to aluminum. When exposed to electrolyte-laden moisture (such as melted snow containing calcium chloride in Sapporo), an unprotected aluminum-titanium interface can accelerate aluminum sacrificial oxidation. We recommend applying anti-seize paste formulated with molybdenum disulfide ($MoS_2$) or high-purity nickel grease, anodizing the aluminum housing, or utilizing our fluoropolymer / PVD coated titanium bolts with non-conductive ceramic washers to break electrical conductivity completely.

Grade 5 titanium ($Ti\text{-}6Al\text{-}4V$) has a modulus of elasticity of approximately 114 GPa—roughly half that of carbon steel (205 GPa). This greater compliance allows titanium bolts to stretch more before yielding, providing superior resistance to vibration loosening. For lubricated threads ($K\approx 0.15$), typical torque specifications are: M6 = 9.5 to 11.0 Nm; M8 = 24 to 28 Nm; M10 = 48 to 55 Nm; M12 = 82 to 92 Nm. We provide customized torque calculation tables based on your specific joint clamp length and lubrication type.

Every shipment includes an original Mill Test Certificate (MTC) conforming to EN 10204 Type 3.1 detailing chemical composition (ICP-OES spectrometer analysis) and mechanical properties (tensile, yield, elongation, reduction of area). We also provide full dimensional inspection reports (CMM, thread gauge go/no-go verification), Certificate of Origin (COO), and RoHS/REACH compliance declarations upon request.

For standard catalog cap bolts or urgent prototyping samples, air express delivery (via DHL, FedEx, or SF Express International) connects from our Baoji facility to New Chitose Airport (CTS) or Sapporo Okadama via Narita/Kansai hubs within 4 to 6 business days. For volume container shipments, ocean freight operates through Qingdao or Tianjin directly to the Port of Tomakomai or the Port of Ishikariwan-Shinko, requiring roughly 12 to 16 calendar days from factory gate to customs clearance.

Yes. Custom CNC machining is our core specialty. Over 45% of our monthly throughput comprises non-standard parts manufactured directly from customer STEP, IGES, DXF, or PDF drawings. We accommodate unique under-head radii, drilled heads for safety lock wire, low-profile socket architecture, internal Torx/Hex configurations, non-standard thread pitches (e.g., M10x1.0 or M12x1.25), and localized laser engraving of lot numbers or customer trademarks.

For standard stocked titanium socket cap bolts, our MOQ is as low as 100 pieces per size. For custom CNC machined bolts or non-standard thread pitches, initial prototyping runs are available at 20 to 50 pieces to facilitate your mechanical assembly testing, FEA validation, and dyno trials before committing to full batch volume orders.