HINGE BOLT
HINGE BOLT Structure

HINGE BOLT

A HINGE BOLT is a special shaft-type fastener designed for rotating, opening-and-closing, or articulated mechanisms. It can integrate threaded sections, smooth shanks, shoulders, and positioning features. Once assembled, it serves as a pivot point for moving components, while nuts, washers, bushings, or friction elements can be used to control clearance and rotational resistance.

Product Name: HINGE BOLT / Pivot Bolt
Product Structure: Head, smooth shaft section, shoulder, and threaded section
Head Types: Hex head, round head, flat head, or other special head types
Drive Types: Slotted, Phillips, hex socket, Torx, or other specified drive types
Thread Specifications: Metric, imperial, coarse thread, fine thread, or other special thread profiles
Primary Dimensions: Shaft diameter, shaft length, thread diameter, thread length, and head dimensions
Special Features: Stepped shaft, angled hole, cross hole, groove, or anti-rotation flat
Materials: Carbon steel, stainless steel, alloy steel, 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, passivation, Dacromet coating, 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, hardness, concentricity, and torque

Category:

Provides a Stable Pivot Point

The smooth shaft section serves as the rotational center of the connected component, helping maintain its position and intended path of movement. This makes the HINGE BOLT suitable for opening-and-closing and articulated mechanisms.

Combines Pivoting and Fastening Functions

A single HINGE BOLT can provide both shaft support and threaded fastening, reducing the need for separate pivot pins and additional connecting components.

Allows Rotational Clearance to Be Controlled

Assembly clearance can be adjusted through the shoulder, washers, bushings, and fastening depth, helping achieve smoother and more stable rotational movement.

Supports Special Structural Designs

Stepped shafts, angled holes, cross holes, grooves, or anti-rotation flats can be incorporated according to mechanism requirements, allowing the HINGE BOLT to be used with springs, retaining pins, and linkages.

Suitable for Various Moving Mechanisms

HINGE BOLTS are commonly used in hinges, brackets, seats, covers, robotic arms, automotive and motorcycle components, and automation equipment.

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