Products
Thread Locking Screws
Thread Locking Screws (alias: Glue-Coated Set Screws, Anaerobic Adhesive Screws) are stainless steel fasteners combining fixing function and anti-loosening performance, designed for high-precision scenarios requiring vibration resistance and secure fixation. Crafted from 304/316 premium stainless steel (containing chromium and nickel, anti-oxidation, acid-alkali resistant), the screws are treated with blue anaerobic adhesive (applied to the middle section of the thread). The adhesive fills the thread clearance, forming a "mechanical + chemical" dual-locking structure to effectively prevent loosening caused by vibration, impact, or repeated disassembly.
Product Description
Thread Locking Screws (alias: Glue-Coated Set Screws, Anaerobic Adhesive Screws) are stainless steel fasteners combining fixing function and anti-loosening performance, designed for high-precision scenarios requiring vibration resistance and secure fixation. Crafted from 304/316 premium stainless steel (containing chromium and nickel, anti-oxidation, acid-alkali resistant), the screws are treated with blue anaerobic adhesive (applied to the middle section of the thread). The adhesive fills the thread clearance, forming a "mechanical + chemical" dual-locking structure to effectively prevent loosening caused by vibration, impact, or repeated disassembly.
The product features a hexagon socket pointed end design: the pointed end enables quick positioning and insertion into mounting holes, while the hexagon socket drive (compliant with ISO 4762) fits wrenches/electric tools for convenient installation and high torque transmission.
Ideal for automotive, machinery, electronics, and home appliances—industries with strict anti-loosening requirements—this product ensures the stability of assembled structures and avoids safety hazards caused by screw loosening.
The product features a hexagon socket pointed end design: the pointed end enables quick positioning and insertion into mounting holes, while the hexagon socket drive (compliant with ISO 4762) fits wrenches/electric tools for convenient installation and high torque transmission.
Ideal for automotive, machinery, electronics, and home appliances—industries with strict anti-loosening requirements—this product ensures the stability of assembled structures and avoids safety hazards caused by screw loosening.
Product Parameter
The following are common metric specifications (compliant with ISO 4762). Non-standard customization (e.g., adjusting thread length, adhesive position) is available:
Note: Specification is expressed as "Nominal Diameter×Length" (e.g., M6×20 means nominal thread diameter 6mm, total length 20mm); adhesive width can be adjusted to meet anti-loosening requirements (wider adhesive provides stronger anti-loosening).
| Nominal Diameter (d, mm) | Pitch (p, mm) | Nominal Length (L, mm) | Hexagon Socket Size (s, mm) | Adhesive Position | Adhesive Width (mm) |
| M2 | 0.4 | 8-30 | 0.9-1.5 | Middle of thread | 1.0-2.0 |
| M2.5 | 0.45 | 8-30 | 1.3-1.8 | Middle of thread | 1.2-2.2 |
| M3 | 0.5 | 10-40 | 1.5-2.0 | Middle of thread | 1.5-2.5 |
| M4 | 0.7 | 12-50 | 2.0-2.5 | Middle of thread | 1.8-2.8 |
| M5 | 0.8 | 16-60 | 2.5-3.0 | Middle of thread | 2.0-3.0 |
| M6 | 1.0 | 20-60 | 3.0-3.5 | Middle of thread | 2.2-3.2 |
| M8 | 1.25 | 25-80 | 4.0-4.5 | Middle of thread | 2.5-3.5 |
| M10 | 1.5 | 30-100 | 5.0-5.5 | Middle of thread | 2.8-3.8 |
| M12 | 1.75 | 35-120 | 6.0-6.5 | Middle of thread | 3.0-4.0 |
Note: Specification is expressed as "Nominal Diameter×Length" (e.g., M6×20 means nominal thread diameter 6mm, total length 20mm); adhesive width can be adjusted to meet anti-loosening requirements (wider adhesive provides stronger anti-loosening).
Product Feature
Dual Anti-Loosening, Reliable & Stable:
The blue anaerobic adhesive fills the thread clearance, creating a "mechanical locking + chemical bonding" dual anti-loosening structure. This improves vibration and impact resistance by over 50% compared to ordinary screws, ensuring no loosening even in high-frequency vibration environments (e.g., automotive engines, machine tool spindles).
Corrosion-Resistant, Long Service Life:
304/316 stainless steel offers excellent corrosion resistance (to atmospheric corrosion, organic/inorganic acid erosion). The adhesive further isolates moisture and chemicals, making it suitable for humid or corrosive environments (e.g., food machinery, outdoor facilities).
High Precision, Easy Installation:
The hexagon socket (compliant with ISO 4762) fits tightly with wrenches/electric tools, ensuring high torque transmission efficiency (max torque: 15N·m). The pointed end allows quick positioning and insertion into mounting holes, ideal for high-precision assembly (e.g., electronic devices, precision machinery).
High Strength, Suitable for Heavy Loads:
Stainless steel has a tensile strength of ≥520MPa (304)/≥550MPa (316), capable of withstanding medium to heavy loads (e.g., mechanical equipment, vehicle & ship parts) without deformation or fracture.
Customization Service:
The factory supports non-standard customization (e.g., adjusting adhesive color, thread parameters, length) and provides free samples to meet special customer needs (e.g., irregular part fixation, high-corrosion environments).
Application Fields
Automotive Parts: Used for fixing engine components (e.g., cylinder heads, camshafts), chassis parts (e.g., suspension brackets, drive shafts), and interior parts (e.g., dashboards, seats). The anti-vibration and anti-loosening design ensures stable vehicle operation.
Machinery & Equipment: Used for fixing machine tool spindles, pumps, fans, and compressors. The dual anti-loosening structure resists equipment vibration, preventing mechanical failures caused by screw loosening.
Electronic Devices: Used for internal part fixation in mobile phones, computers, and communication equipment (e.g., base stations, switches). High-precision assembly does not affect device performance, and the anti-loosening design prevents part displacement.
Home Appliances: Used for assembling washing machines, air conditioners, and refrigerators. The corrosion-resistant and anti-loosening design is suitable for humid environments (e.g., bathrooms, kitchens), ensuring stable appliance operation.
Industrial Building Materials: Used for connections in steel structure buildings, scaffolding, and railway facilities. The high-strength and anti-loosening design withstands heavy loads and vibration, ensuring structural safety.
The blue anaerobic adhesive fills the thread clearance, creating a "mechanical locking + chemical bonding" dual anti-loosening structure. This improves vibration and impact resistance by over 50% compared to ordinary screws, ensuring no loosening even in high-frequency vibration environments (e.g., automotive engines, machine tool spindles).
Corrosion-Resistant, Long Service Life:
304/316 stainless steel offers excellent corrosion resistance (to atmospheric corrosion, organic/inorganic acid erosion). The adhesive further isolates moisture and chemicals, making it suitable for humid or corrosive environments (e.g., food machinery, outdoor facilities).
High Precision, Easy Installation:
The hexagon socket (compliant with ISO 4762) fits tightly with wrenches/electric tools, ensuring high torque transmission efficiency (max torque: 15N·m). The pointed end allows quick positioning and insertion into mounting holes, ideal for high-precision assembly (e.g., electronic devices, precision machinery).
High Strength, Suitable for Heavy Loads:
Stainless steel has a tensile strength of ≥520MPa (304)/≥550MPa (316), capable of withstanding medium to heavy loads (e.g., mechanical equipment, vehicle & ship parts) without deformation or fracture.
Customization Service:
The factory supports non-standard customization (e.g., adjusting adhesive color, thread parameters, length) and provides free samples to meet special customer needs (e.g., irregular part fixation, high-corrosion environments).
Application Fields
Automotive Parts: Used for fixing engine components (e.g., cylinder heads, camshafts), chassis parts (e.g., suspension brackets, drive shafts), and interior parts (e.g., dashboards, seats). The anti-vibration and anti-loosening design ensures stable vehicle operation.
Machinery & Equipment: Used for fixing machine tool spindles, pumps, fans, and compressors. The dual anti-loosening structure resists equipment vibration, preventing mechanical failures caused by screw loosening.
Electronic Devices: Used for internal part fixation in mobile phones, computers, and communication equipment (e.g., base stations, switches). High-precision assembly does not affect device performance, and the anti-loosening design prevents part displacement.
Home Appliances: Used for assembling washing machines, air conditioners, and refrigerators. The corrosion-resistant and anti-loosening design is suitable for humid environments (e.g., bathrooms, kitchens), ensuring stable appliance operation.
Industrial Building Materials: Used for connections in steel structure buildings, scaffolding, and railway facilities. The high-strength and anti-loosening design withstands heavy loads and vibration, ensuring structural safety.
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