This screws bolt are a type of screws that undergo a special surface treatment to provide enhanced resistance against loosening, rusting, and preventing accidental dropping. They are typically made from carbon steel material and undergo a phosphating process, resulting in a black-colored appearance. The locking screws bolt are commonly used in various applications where a secure and durable fastening solution is required, such as in machinery, automotive, construction, or industrial equipment. They offer improved performance and reliability in environments where vibration, corrosion, and accidental dropping may occur.
| Items | Details |
| Product Name | Metal Carbon Steel Phosphating Hex Socket Threaded Screw Bolt |
| Standard Compliance | OEM Service |
| Thickness | 0.5-6mm (for screw head) |
| Certifications | IATF16949 2016; ISO9001 2015; ISO14001:2015; RoHS; REACH |
| Manufacturing Process | CNC Machining, Threading, Phosphating |
| Applications | Automotive, Industrial Equipment, Aerospace, Electronic Devices |
| Product Type | Precision Nonstandard Parts (OEM Service) |
| Material Options | Carbon Steel (e.g., SAE 1018, 1045) |
| Packaging Details | Packaged in plastic bags with desiccant, then placed in carton boxes, or as per clients' specific requirements. |
| Screw Diameter Range | 1.5mm - 10mm |
| Length Range | 3mm - 50mm |
| Thread Type | Machine Screw Threads, Self-Tapping Threads |
| Drive Type | Phillips, Slotted, Hex Socket, Torx |
| Tolerance | ±0.01mm |
| Surface Finish | Phosphate coating (Black or Gray) |
| Hardness | HRC 22-32 |
| Color | Dark gray to black (due to phosphate coating) |
| Machining Capabilities | CNC Turning, Threading, Slotting, Heat Treatment |
| Special Features | Corrosion resistance, Enhanced lubricity, Improved wear resistance, Self-locking capability, High precision threads |
| Services | Items | Details |
| Shipping Port | Shenzhen or Hong Kong | |
| Production Lead Time | Quantity (pieces) 1 - 5,000 | 12days |
| Quantity (pieces) 5,001 - 20,000 | 14 days | |
| Quantity (pieces) > 20,000 | To be negotiated | |
| Customization Services | Customized head design | Min. order 100 |
| Customized packaging | Min. order 500 | |
| Specialized coating | Min. order 300 |
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