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Grub Screw
Grub Screw, also known as Socket Headless Set Screw, is a precision fastener engineered for secure positioning and fixation across diverse applications. Crafted from 304 stainless steel, this screw features a sharp pointed tip (cup point) for accurate alignment and a hexagonal socket drive for high-torque installation. Its headless design enables flush mounting, ensuring a smooth, unobtrusive finish—ideal for scenarios where protrusions are unacceptable. The burr-free surface and clear threads enhance reliability, making it a preferred choice for industries demanding precision and durability.
Product Description
Grub Screw, also known as Socket Headless Set Screw , is a precision fastener engineered for secure positioning and fixation across diverse applications. Crafted from 304 stainless steel, this screw features a sharp pointed tip (cup point) for accurate alignment and a hexagonal socket drive for high-torque installation. Its headless design enables flush mounting, ensuring a smooth, unobtrusive finish—ideal for scenarios where protrusions are unacceptable. The burr-free surface and clear threads enhance reliability, making it a preferred choice for industries demanding precision and durability.
Product Parameter
Key Specifications (Unit: mm, manual measurement—slight errors may occur):
| Nominal Diameter (d) | Pitch (p) | Tip Diameter (dt, max) | Hex Socket Size (S) | Minimum Length (t) |
| M2 | 0.4 | 0.5 | 0.9 (Nominal) / 0.913 (Max) / 0.887 (Min) | 3 |
| M2.5 | 0.45 | 0.65 | 1.3 (Nominal) / 1.3 (Max) / 1.275 (Min) | 3 |
| M3 | 0.5 | 0.75 | 1.5 (Nominal) / 1.58 (Max) / 1.52 (Min) | 4 |
| M4 | 0.7 | 1.0 | 2.0 (Nominal) / 2.08 (Max) / 2.02 (Min) | 4 |
| M5 | 0.8 | 1.25 | 2.5 (Nominal) / 2.58 (Max) / 2.52 (Min) | 5 |
| M6 | 1.0 | 1.5 | 3.0 (Nominal) / 3.08 (Max) / 3.02 (Min) | 5 |
| M8 | 1.25 | 2.0 | 4.0 (Nominal) / 4.095 (Max) / 4.02 (Min) | 5 |
| M10 | 1.5 | 2.5 | 5.0 (Nominal) / 5.14 (Max) / 5.02 (Min) | 5 |
| M12 | 1.75 | 3.0 | 6.0 (Nominal) / 6.14 (Max) / 6.02 (Min) | 5 |
Note: Specification format: D*L (Nominal Diameter * Total Length), e.g., M420* (4mm thread diameter * 20mm total length).
Product Feature
Premium Material: Made of 304 stainless steel, this grub screw offers exceptional corrosion resistance, rust resistance, and durability—suitable for harsh environments (e.g., food processing, marine applications).
Precision Engineering: The sharp pointed tip ensures accurate positioning, while the hexagonal socket drive provides high torque for secure installation. The headless design enables flush mounting, avoiding protrusions and ensuring a smooth finish.
Superior Craftsmanship: Clear, uniform threads prevent stripping and ensure reliable fixation. The burr-free surface protects workpieces from damage during installation.
Wide Specification Range: Available in M2-M12 nominal diameters and various lengths, meeting diverse application needs.
Customization & Service: Supports custom processing (e.g., special lengths, materials) to meet specific requirements. Competitive bulk pricing and thoughtful after-sales service (e.g., returns, technical support) ensure customer satisfaction.
Application Fields
This grub screw is widely used in industrial, commercial, and residential applications, including:
Home Decoration: Furniture assembly (e.g., sofas, cabinets), hardware fixtures, and home improvement projects.
Industrial Building Materials: Structural connections in steel frames, machinery, and heavy equipment.
Medical Equipment: Fixation of medical devices (e.g., surgical tools, hospital beds), surgical instruments, and diagnostic equipment.
Food Industry: Food processing machinery (e.g., mixers, conveyors), packaging equipment, and hygiene-critical applications (304 stainless steel ensures food safety).
Vehicle & Ship Parts: Automotive components (e.g., engine parts, chassis), shipbuilding, and marine equipment (e.g., propellers, navigation systems).
Communication Industry: Fixation of communication devices (e.g., routers, switches), server cabinets, and network equipment.
Other Scenarios: Drilling holes in various materials (e.g., wood, metal, concrete), tightening/loosening screws, and precision positioning in automation systems.
Precision Engineering: The sharp pointed tip ensures accurate positioning, while the hexagonal socket drive provides high torque for secure installation. The headless design enables flush mounting, avoiding protrusions and ensuring a smooth finish.
Superior Craftsmanship: Clear, uniform threads prevent stripping and ensure reliable fixation. The burr-free surface protects workpieces from damage during installation.
Wide Specification Range: Available in M2-M12 nominal diameters and various lengths, meeting diverse application needs.
Customization & Service: Supports custom processing (e.g., special lengths, materials) to meet specific requirements. Competitive bulk pricing and thoughtful after-sales service (e.g., returns, technical support) ensure customer satisfaction.
Application Fields
This grub screw is widely used in industrial, commercial, and residential applications, including:
Home Decoration: Furniture assembly (e.g., sofas, cabinets), hardware fixtures, and home improvement projects.
Industrial Building Materials: Structural connections in steel frames, machinery, and heavy equipment.
Medical Equipment: Fixation of medical devices (e.g., surgical tools, hospital beds), surgical instruments, and diagnostic equipment.
Food Industry: Food processing machinery (e.g., mixers, conveyors), packaging equipment, and hygiene-critical applications (304 stainless steel ensures food safety).
Vehicle & Ship Parts: Automotive components (e.g., engine parts, chassis), shipbuilding, and marine equipment (e.g., propellers, navigation systems).
Communication Industry: Fixation of communication devices (e.g., routers, switches), server cabinets, and network equipment.
Other Scenarios: Drilling holes in various materials (e.g., wood, metal, concrete), tightening/loosening screws, and precision positioning in automation systems.
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