EPDM Washer

DIN stands for "Deutsches Institut für Normung" which is the German institute for standardization.

Description:

Simple flat, circular washers with a centered hole.

Made from steel, stainless steel, or other metals.

Have an outer diameter (OD) and inner diameter (ID) that conform to the standard.

Provide a flat bearing surface under the head of a bolt or nut.

Function:

Distribute the clamping load over a larger area.

Prevent damage to the surface under the fastener head.

Maintain the proper preload on the joint.

Help prevent loosening of the fastener due to vibration.

Characteristics:

Available in a wide range of standard sizes to match common bolt/nut diameters.

Sizes range from very small (e.g. 3mm OD) to quite large (e.g. 200mm OD).

Dimensional tolerances are precisely specified in the standard.

Surfaces may be finished with coatings like zinc, chrome, or black oxide.

Can be used with both metric and imperial threaded fasteners.

Provide a simple, low-cost solution for load distribution.

DIN 436 plain round washers are a very common hardware component used across industries like automotive, machinery, construction, and electronics. Their standardized dimensions ensure interchangeability and compatibility.

Description:

Designed with a series of radial teeth or serrations on the outer diameter.

The teeth bite into the surface they are mounted against to prevent rotation.

Made from spring steel or stainless steel.

Provide a locking mechanism to secure nuts and bolts.

Function:

Prevent loosening of threaded fasteners due to vibration or dynamic loads.

Create friction and increase clamping force between the nut/bolt head and the surface.

Maintain the tightness of the connection over time.

Commonly used in high-vibration applications.

Characteristics:

Available in a range of standard sizes to match common bolt/nut diameters.

Teeth provide a gripping force of up to 25% of the bolt's proof strength.

Can be used with both metric and imperial threaded fasteners.

Provide a stronger locking mechanism than standard flat washers.

Reusable - can be removed and reinstalled multiple times.

DIN 6798 toothed lock washers are widely used in the automotive, machinery, construction, and electronics industries to secure critical threaded connections. They are an important hardware component for ensuring the integrity of assemblies subjected to vibration or dynamic forces.

Description:

Designed with a split ring or coiled spring shape.

Made from hardened steel or spring steel.

The split/coiled design allows the washer to exert a constant spring tension.

This spring tension helps create friction and resist loosening of the nut or bolt.

Function:

Prevents nuts and bolts from vibrating loose over time.

Applies a clamping force between the nut/bolt head and the surface.

Creates resistance to rotation and helps maintain the tightness of the connection.

Commonly used in applications with high vibration or dynamic loads.

Characteristics:

Available in a wide range of standard sizes to match bolt/nut diameters.

Can be used with both metric and imperial threaded fasteners.

Made in different materials like steel, stainless steel, nylon, and more.

Provide a locking action without the need for adhesives or other components.

Reusable - can be removed and reinstalled multiple times.

Larger diameter than standard washers - Typically range from 1-4 inches in outer diameter.

Thin profile - Usually have a thickness of 1/16 to 1/8 inch.

Large inner diameter - The inner hole is often 1/4 to 1 inch in diameter.

Provide a larger bearing surface area.

Commonly made from steel, stainless steel, or galvanized steel.

Used to spread the load and prevent damage to soft or brittle materials.

Help distribute the force from a nut or bolt head over a larger area.

Frequently used when mounting hardware to drywall, wood, or other surfaces that could be damaged by a smaller washer.

Also used for vibration dampening, surface protection, and decorative purposes.

Fender washers get their name from their original use on the fenders of cars and trucks to prevent fasteners from pulling through the sheet metal. However, they are now commonly found in many construction, plumbing, electrical, and general mechanical applications.

DIN125 specifies the dimensions and tolerances for plain washers, including the outer diameter, inner diameter, and thickness.

The standard covers a wide range of washer sizes, from very small washers with outer diameters around 3 mm up to larger washers around 200 mm.

DIN125 washers are made from various materials including steel, stainless steel, aluminum, and plastic depending on the application needs.

These standardized washers are widely used in mechanical assemblies, construction, and other industrial applications to distribute the load under a nut or bolt head.

Adhering to the DIN125 specifications ensures compatibility and interchangeability of these common hardware components across different manufacturers and products.