SPN-RING
SPN-RING Structure

SPN-RING

An SPN-RING is a self-locking retaining component stamped from spring steel sheet, with elastic locking teeth or gripping tabs formed on the inside. When pressed onto a bolt, stud, pin, or shaft, the elastic teeth engage with the surface to maintain retention, making it suitable for quick assembly and preventing components from becoming detached.

Product Name: SPN-RING / SPN Spring Nut / Push Nut
Product Structure: Stamped disc-shaped body with internal elastic locking teeth
Primary Functions: Quick fastening, retention, stopping, and auxiliary anti-loosening
Installation Position: Outside of bolts, studs, pins, or smooth shafts
Applicable Shaft Diameter: Selected according to the outside thread diameter or shaft diameter
Outer Shape: Round, disc-shaped, or as specified by drawing
Thickness: Determined according to shaft diameter, load, and clamping requirements
Materials: Spring steel, carbon steel, stainless steel, or other specified materials
Heat Treatment: Applied according to hardness, elasticity, and fatigue-resistance requirements
Surface Treatments: Zinc plating, nickel plating, black oxide, phosphate coating, or passivation
Production Methods: Precision stamping, heat treatment, and surface treatment
Production Options: Standard specifications or custom production based on drawings
Packaging: Bulk packing, bag packing, box packing, or sorted packaging

Category:

Press-On Installation for Quick Retention

An SPN-RING can be pressed directly onto a stud or shaft without rotational tightening, making it suitable for high-volume production and fast assembly.

Elastic Locking Teeth Help Prevent Disengagement

The internal locking teeth flex during installation and bite into the shaft surface, generating continuous gripping force and helping reduce the possibility of the component slipping off.

Simplifies Assembly Components

An SPN-RING can reduce the need for conventional nuts, washers, and additional retaining components, helping simplify the overall fastening structure.

Suitable for Limited Installation Space

The thin disc-shaped structure requires relatively little installation height, making it suitable for shaft-end locations with limited space or areas where fastening tools are difficult to use.

Suitable for Various Product Assemblies

SPN-RINGS are commonly used in home appliances, electronic equipment, automotive and motorcycle components, toys, furniture hardware, and general mechanical assemblies.

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