Direct factory production lines covering specialized race-grade fasteners, multi-axis milled rotors, and micro-tolerance headless grub screws built to DIN 913, DIN 914, DIN 915, and DIN 916 standards.
In high-precision electro-mechanical assemblies, automated production lines, and high-frequency dynamic machinery, the headless set screw (commonly designated as a grub screw) performs the essential function of securing rotating components—such as pulleys, timing gears, sprockets, motor couplings, and micro-actuators—against their respective shafts. Unlike conventional hex bolts or socket-head caps where the clamping force is exerted between the fastener head and the workpiece surface, a titanium grub screw transfers its entire mechanical preload axially through its point geometry.
As the premier titanium fastener cluster centered in Baoji (China’s Titanium Valley), our facility manufactures custom and standard titanium grub screws in compliance with the stringent international specifications of DIN 913 (flat point), DIN 914 (cone point), DIN 915 (full dog / half dog point), and DIN 916 (cup point). By utilizing certified Grade 5 Ti-6Al-4V (UNS R56400) and commercially pure Grade 2 Titanium (UNS R50400), we deliver an optimal balance of structural strength-to-weight ratio, non-magnetic neutrality, cryogenic resistance, and total immunity to ambient environmental chlorides and aggressive industrial chemicals.
| DIN Standard | Point Profile | Primary Mechanical Engagement | Standard Drive | Recommended Industrial Applications |
|---|---|---|---|---|
| DIN 913 / ISO 4026 | Flat Point (Truncated) | Compressive surface friction; zero surface indentation | Hex Socket / Torx | Thin-walled hollow shafts, precision micrometer stages, brass sleeves |
| DIN 914 / ISO 4027 | Cone Point (Sharp) | Permanent localized point penetration into receiving detents | Internal Hexagon | Permanent axial locking, anti-vibration pivots, hard-stop indexing |
| DIN 915 / ISO 4028 | Dog Point (Cylindrical Pin) | Shear load engagement inside pre-drilled shaft detents | Hex / Spline Socket | Locking rotating hubs to slotted shafts, guide pins in linear slides |
| DIN 916 / ISO 4029 | Cup Point (Serrated / Hollow) | Circumferential edge bite into unhardened shafts | Hexagon / Star Drive | High-torque motor pulleys, conveyor drive sprockets, dynamic machinery |
Grade 5 titanium grub screws offer an ultimate tensile strength exceeding 895 to 930 MPa with a density of 4.43 g/cm³, providing mechanical clamping equivalents to 8.8 and 10.9 class carbon steels while reducing rotational component weight by 44%. Because set screws are mounted within spinning components, reducing fastener mass significantly lowers angular inertia ($\Delta I = \Delta m \cdot r^2$), which reduces shaft vibration and dampens high-frequency resonance on high-RPM motorized equipment.
The historic municipality of Prizren, situated at the economic crossroads connecting Kosovo, Albania, and North Macedonia, has established itself as an energetic center for light manufacturing, beverage bottling, commercial metalworking, modern logistics automation, and custom vehicle engineering. In recent years, enterprises operating in the Prizren Industrial Park and neighboring peri-urban zones have modernized production machinery, transitioning away from short-life galvanized steel and brittle stainless fasteners toward corrosion-resistant titanium alloy solutions:
Prizren’s thriving confectionery, dairy, and beverage bottling plants utilize automated conveyor lines and sanitary dosing mechanisms. Grade 2 and Grade 5 titanium DIN 913/916 grub screws are completely non-toxic, biochemically inert, and impervious to organic acid washdowns, caustic CIP (Clean-in-Place) sanitation cycles, and chlorinated rinsing solutions that pit 304 and 316 stainless steel fasteners.
Kosovo’s automotive enthusiast workshops and motorsport fabricators rely on high-strength titanium fasteners for track cars, dirt bikes, and custom chassis assemblies. Titanium grub screws (M4, M5, M6, M8) are utilized in throttle body cable pulleys, adjustable cam gears, suspension shock collars, and shifting linkages where lightweight inertia and zero thread seizing under heat are mandatory.
Precision repair hubs in Prizren handling clinical laboratory instruments, optoelectronic framing, and dental laboratory milling units require miniature micro grub screws (M1.6, M2, M2.5, M3). Our CNC precision sliding-head lathes manufacture headless screws with non-magnetic, burr-free internal hex sockets that eliminate interference with delicate electronic sensors and magnetic fields.
Procurement engineers and workshop owners in Prizren have traditionally sourced small batches of titanium fasteners through trading intermediaries and specialty hardware brokers in Central Europe (notably Germany, Italy, and Austria). While convenient for single-packet emergency replacements, this indirect supply chain model incurs substantial distributor markups—often exceeding 200% to 350% over manufacturer factory gate pricing—along with compounded European transit tariffs and prolonged stockout delays.
With modern multimodal transport connections (combining ocean freight into the Port of Durrës, Albania, linked via the R7 Motorway directly to Prizren, or direct expedited air express via Pristina International Airport Adem Jashari), procurement teams in Kosovo are actively transitioning to direct factory-tier cooperation with Baoji manufacturers. Sourcing wholesale directly from our 34-unit CNC machining facility provides Prizren companies with decisive competitive advantages:
Furthermore, total cost of ownership (TCO) considerations have shifted technical specifications. While an initial batch of Grade 5 titanium set screws carries a modest premium over standard 316L stainless steel screws, titanium's absolute resistance to galvanic stress corrosion and thread galling avoids broken-screw extraction downtime—which often costs hundreds of Euros per hour in stopped bottling or processing machinery in Prizren.
Established in 2008 adjacent to the Baoti Group Industrial Park in Baoji—widely recognized globally as "China's Titanium Valley"—Vunza Titanium Industry Co., Ltd. operates an integrated precision manufacturing complex encompassing raw material forging, precision CNC machining, multiaxial threading, and surface functionalization under a unified quality management system.
Founded in 2008 with a continuous 13-year verified export history supplying industrial partners across Europe, North America, and the Balkan region.
Equipped with high-precision 3-axis, 4-axis, and simultaneous 5-axis machining stations capable of sustaining micro-tolerances down to 0.005 mm.
Over 50% of our production staff possess more than 13 years of hands-on titanium machining experience, mitigating material work-hardening challenges.
Total traceability from raw sponge dissolution to final automated optical sorting, thread go/no-go gauging, and certified dimensional release documentation.
Because titanium exhibits a low modulus of elasticity (approximately 114 GPa for Grade 5, roughly half that of structural steel) and poor thermal conductivity, machining headless grub screws demands sophisticated CNC tooling feeds, dedicated high-pressure coolant nozzles, and precision thread-rolling or single-point CNC chase threading. Our specialized production lines avoid heat accumulation in the cutting zone, ensuring that the internal grain structure of every screw remains uncompromised by thermal embrittlement.
Directly connect with our Baoji application engineering desk. Submit your technical drawings, standard DIN identifiers, or thread pitch requirements to receive comprehensive DFM feedback, bulk wholesale tier discounts, and test samples delivered directly to Prizren.