LONG SHAFT SCREW

LONG SHAFT SCREW

A LONG SHAFT SCREW is a special screw with an extended shank or shaft section that can provide fastening, support, positioning, guidance, and pivoting functions. Depending on application requirements, it can be manufactured with a fully threaded, partially threaded, long smooth-shank, stepped-shaft, or specially shaped structure, making it suitable for long-span assemblies and deep-hole installations.

Product Name: LONG SHAFT SCREW / Long Shank Bolt
Product Structure: Fully threaded, partially threaded, long smooth shank, stepped shaft, or specially shaped shaft section
Head Types: Hex head, round head, pan head, countersunk head, or other special head types
Drive Types: External hex, Phillips, hex socket, Torx, or other specified drive types
Thread Specifications: Metric, imperial, coarse thread, fine thread, or other special thread profiles
Primary Dimensions: Thread diameter, thread pitch, overall length, thread length, and smooth-shank length
Special Machining: Cross holes, grooves, flats, reduced-diameter sections, keyways, or threaded ends
Materials: Carbon steel, stainless steel, alloy steel, brass, or other specified materials
Heat Treatment: Quench-and-temper treatment, carburizing, quenching, or other treatments according to strength requirements
Surface Treatments: Zinc plating, nickel plating, black oxide, Dacromet coating, passivation, or other specified finishes
Processing Methods: Cold forging, turning, thread rolling, drilling, and grinding
Production Options: Standard specifications or custom production based on drawings
Inspection Items: Dimensions, threads, straightness, concentricity, and hardness

Category:

Suitable for Deep-Hole and Long-Span Fastening

The extended shank can pass through multiple components, thick workpieces, or deep mounting holes, meeting fastening requirements that cannot be accommodated by conventional short screws.

Combines Positioning and Support Functions

The smooth shank or stepped shaft section can serve as a guide, spacer, support, or pivot, allowing a single LONG SHAFT SCREW to integrate multiple mechanical functions.

Supports Special Shaft Machining

Reduced-diameter sections, flats, cross holes, grooves, or threaded ends can be customized according to assembly design, making it easier to use the screw with retaining rings, pins, and linkages.

Multiple Material and Strength Options Available

Different metal materials, heat treatments, and surface treatments can be selected according to load, wear resistance, corrosion resistance, and operating environment requirements.

Suitable for Various Equipment Assemblies

LONG SHAFT SCREWS are commonly used in machinery, automotive and motorcycle components, molds, electronic equipment, furniture, brackets, linkages, and automation systems.

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