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Semi-Hollow Lock Bolt with Pre-Coated Thread and Lightweight Semi-Hollow Structure for Corrosion Resistant Industrial Fastening
| Place of Origin | GuangDong Dongguan |
| Brand Name | SITUO |
| Certification | ISO9001 & TS16949 |
| Model Number | ST-700026 |
Pre-Coated Thread Semi-Hollow Lock Bolt
,Lightweight Semi-Hollow Structure Anti-Loosing Bolt
,Corrosion Resistant Vibration-Proof Fastener
Situo Hardware specializes in custom processing of non-standard hardware parts, focusing on semi-hollow lock bolts, lightweight hollow anti-loosing bolts, pre-coated anti-slip threaded bolts, and non-standard semi-hollow locking fasteners. Our expertise supports automation equipment, electromechanical machinery, vibration machinery, precision modules, lightweight equipment assembly, and industrial anti-vibration fastening applications.
This series of semi-hollow lock bolts are professional industrial fasteners that balance lightweight design with high fastening performance. The unique semi-hollow structure significantly reduces weight compared to solid bolts while maintaining excellent riveting and clinching capabilities.
Threads are pre-coated with high-quality anti-loosing adhesive that forms a mechanical locking structure when installed, effectively preventing bolt loosening, slipping, falling off, and abnormal noise caused by long-term high-frequency vibration and continuous equipment operation.
Available in multiple material options including carbon steel and stainless steel with full-spec non-standard customization, these bolts are ideal for lightweight equipment assembly under high-vibration working conditions.
Precision drilling creates a semi-hollow structure that reduces bolt weight without compromising tensile, compressive, or locking strength. This lowers equipment load and operating inertia while reducing energy consumption and mechanical wear.
Industrial-grade pre-applied anti-loosing and anti-slip adhesive provides uniform, stable coating that fills thread gaps to create high-strength locking effects, resisting vibration, temperature changes, and frequent start-stop cycles.
Available in high-quality carbon steel, 304 and 316 stainless steel. Carbon steel offers high hardness and cost-effectiveness, while stainless steel provides excellent rust, corrosion, oxidation, and moisture resistance for various working environments.
CNC precision turning, milling, and thread rolling technology ensures neat semi-hollow holes, clear thread profiles, uniform pitch, and qualified precision without damage, edge collapse, or deformation.
Complete parameter customization including bolt length, rod diameter, thread pitch, hollow aperture, head specification, coating range, and thread structure. Support for special specifications and one-on-one customization according to drawings and samples.
Standardized full-process quality control including raw material inspection, hole precision calibration, thread testing, coating adhesion testing, appearance inspection, and performance sampling ensures batch consistency and zero defects.
- Lightweight and anti-vibration fastening for automated precision modules and high-speed operating equipment
- Anti-loosening and anti-slip fixed assembly for electromechanical machinery, electrical control equipment, and precision instruments
- Anti-falling locking for high-frequency vibration mechanical equipment and conveying equipment
- Weight-reducing fastening scenarios for lightweight equipment, new energy equipment, and precision shells
- Corrosion-resistant and anti-loosening bolt assembly for outdoor and humid working conditions
- All industrial assembly scenarios requiring weight reduction and high-strength anti-vibration & anti-loosening performance
We utilize advanced equipment and technology from Japan and Germany (CNC 5-axis and 6-axis machines) to serve customer needs. Maximum processing outer diameter: 60mm, minimum control tolerance: 0.001mm.
| Equipment | Japanese CNC Tsugami, CNC Citizen, multi-station cold extrusion forming machines, 500T press machines, casting equipment |
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| Workforce | 300 employees including 20 technicians, 10 engineers, and 15 quality control personnel |
| Certifications | ISO9001 and TS16949 automotive certifications with 8S management implementation |
| Major Clients | Foxconn, Motors, Husqvarna, Shimano, NVIDIA, DJI Drones, Siegenia |
| Main Products | Stainless steel screws, carbon steel screws, pins, rivets, nuts, eccentric nails, embedded parts, and other fasteners |
|---|---|
| Services | CNC Machining, Turning and Milling, CNC Turning, Cold heading, Stamping, Assembly Service |
| Materials | Aluminum, Stainless Steel, Steel, Alloy Steel, Titanium, Brass, Copper, Bronze, Magnesium alloy, Engineering Plastics |
| Finishes | Sandblasting, Anodizing, Blackening, Plating, Polishing, Powder coating, Passivation, PVD, and more |
| Tolerance | ±0.01mm to ±0.05mm |
| Surface Roughness | Ra 0.1~3.2 |
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