Custom-Made Non-Standard Fasteners

Product Content:

The product is made of high-quality carbon steel and undergoes blackening treatment to form a dense oxide film. It is rust-proof, wear-resistant, and has a low-profile appearance. The unique rhombic head design provides multiple force application surfaces, and when combined with a special wrench, it enables quick disassembly and assembly, especially suitable for situations with limited space or where disassembly is required. The thread precision is high, the connection is stable, and it is suitable for scenarios such as mechanical equipment, power cabinets, and rail transit that require anti-loosening. The black oxide layer on the surface enhances corrosion resistance and reduces light reflection, meeting the concealment requirements of industries such as military and security. Customization is supported, including dimensions and strength grades.

Product Features:

The rhombic head structure requires special tools for disassembly, providing higher safety protection, and is suitable for scenarios such as security and public facilities that require anti-theft.

The blackening (black oxide) process forms a dense protective layer, with better corrosion resistance than ordinary galvanization, suitable for various indoor and outdoor environments.

The rhombic head supports force application in multiple directions, allowing for convenient operation in narrow spaces and solving the problem of limited angle for traditional hexagonal screw tools.

Carbon steel (optional 8.8/10.9 grade) or stainless steel is selected, undergoes heat treatment for strengthening, with high tensile strength, suitable for heavy-load mechanical connections.

The matte black surface reduces light reflection and meets the special requirements for visual concealment in industries such as military and instrument equipment.

The rolled thread precision reaches 6g level, combined with anti-loosening design (can be paired with lock washers), ensuring no loosening in vibration environments.

Product Application:

Used for monitoring scenarios such as supports and access control systems that require anti-tampering design. The diamond-shaped head structure prevents non-professional tools from disassembling, enhancing security.

Suitable for connections of industrial equipment with high vibration, such as stamping machines and transmission systems. The blackened layer provides rust prevention and wear resistance, reducing maintenance frequency.

For fastening components like train seats and luggage racks, it is corrosion-resistant and has low reflectivity, meeting the requirements of the train carriage environment.

Installation of power distribution cabinets and 5G base station equipment, adapted to outdoor, humid, and salt-spray environments, with blackening treatment to extend service life and enhance durability.

Weapon supports and avionics equipment fixation, the black oxide layer meets the need for concealment, and the high-strength material ensures reliability in extreme conditions.

Product Advantages:

Unique diamond-shaped head design, requiring special tools to disassemble, effectively preventing unauthorized personnel from dismantling, enhancing equipment security, suitable for scenarios with high anti-tampering requirements such as security monitoring, public facilities, and military equipment.

Surface blackening treatment (black oxide) forms a dense protective layer, with better rust prevention than ordinary galvanized screws.

Passed salt spray test (72-120 hours), suitable for outdoor, humid, and industrial environments.

Diamond-shaped multi-angle design, allowing flexible operation in narrow spaces, solving the problem of limited tool angles for traditional hexagonal screws.

Supports quick disassembly, improving maintenance efficiency and reducing labor costs.

Uses high-quality carbon steel (8.8/10.9 grade) or stainless steel materials, strengthened through heat treatment, with high tensile strength.

Suitable for high-load mechanical and rail transportation connection scenarios.

Matte black surface reduces light reflection, meeting the special requirements for concealment in military and instrument equipment.

Low-profile and professional appearance, enhancing the overall quality of the equipment.

High-precision threads (6g grade) combined with anti-loosening design, ensuring no loosening in vibration environments.

Passed strict quality inspections, meeting international standards (such as DIN, ISO, etc.).

FAQ

Q1: What are the differences between blackening treatment and ordinary galvanization?

A1: The blackening treatment forms a black oxide film through chemical oxidation. It has better rust prevention performance than ordinary galvanization, and the surface is more wear-resistant. The black layer has no hydrogen embrittlement risk and is suitable for high-strength fasteners, but its salt spray resistance is slightly lower than galvanization (it can be enhanced by applying oil later).

Q2: Do diamond-shaped screws need to be installed with special tools?

A2: Yes, a diamond-shaped wrench (such as a 12-point wrench) is required for operation. Ordinary hexagonal tools cannot match it. Special tools can be purchased separately. It is recommended to choose CR-V material wrenches to extend their service life.

Q3: Is it suitable for long-term outdoor use?

A3: The black layer provides basic rust prevention. It is recommended for indoor or light outdoor environments. If exposed to damp/salt spray for a long time, it is recommended to choose stainless steel material or reapply anti-rust oil on the surface.

Q4: Will the black layer peel off?

A4: It will not peel off under normal use. However, frequent disassembly or strong friction may cause local wear.

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