The Integrity of Your
Entire Machine.
A single sheared bolt can drop a 40-ton container. Secure your fleet with Kalmar-spec High Tensile Fasteners. Tested to withstand 1000 hours of salt spray and extreme vibration.
LIVE FASTENER INVENTORY
Grade 12.9 is Not Just a Number
Standard Grade 8.8 bolts deform under the cyclic load of a Reach Stacker boom. Zhenke fasteners are forged from SCM435 Alloy Steel, heat-treated to achieve a tensile strength of 1220 MPa.
- Zero-Hydrogen Embrittlement: Baked after plating to prevent snap failures.
- Micro-Encapsulated Adhesive: Optional pre-applied threadlocker for vibration resistance.
- Rolled Threads: 30% stronger than cut threads due to grain flow continuity.
Capacity
Precision Thread Rolling
Cheap cut threads create micro-fractures in the steel grain. Zhenke Forklift Wheel Lug Nuts and Boom Bolts use cold-rolled threads. This process compresses the steel grain, increasing thread shear strength by 30%.
Inspect the details yourself. Our ISO 9001 quality control ensures every Kalmar Reach Stacker bolt maintains a 6H thread tolerance.
SALT SPRAY SURVIVAL
Port environments destroy standard zinc-plated bolts in weeks. Zhenke fasteners utilize Dacromet? 500 coating technology.
| Coating Type | Salt Spray Hours (NSS) | Friction Coefficient | Application Suitability |
|---|---|---|---|
| Black Oxide (Generic) | < 24 Hours | Variable | Indoor / Oiled Only |
| Zinc Plated (Blue/White) | 72 – 96 Hours | 0.12 – 0.18 | Standard Warehouse Forklift |
| Hot Dip Galvanized | 300 – 500 Hours | High / Rough | Construction Structure |
| Zhenke Dacromet? | 1000+ Hours | 0.13 ± 0.03 (Stable) | Marine / Reach Stacker Chassis |
PROOF LOAD TESTING
Watch our Grade 12.9 bolt withstand 120kN of force before fracture.
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