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 CTSK FLUSH TYPE WASHER

A countersunk finishing washer made from 18-8 stainless steel, designed to provide a flush, finished appearance when used with a countersunk screw, and offering good corrosion resistance due to its material composition for enhanced durability and corrosion resistance in assembly applications. 

Flat Washer

 A simple, circular disc with a hole in the center, designed to be placed under a bolt head or nut. Its main function is to distribute the clamping force of the fastener over a wider area, preventing damage to the material being fastened and ensuring a more secure connection. 

Thick washer,  External link opens in new tab or windowextra-thick washer or External link opens in new tab or windowheavy-duty washer

A type of flat washer that is significantly thicker than standard flat washers. These washers are designed to handle higher loads, distribute force over a wider area, and provide increased support compared to their thinner counterparts.

External link opens in new tab or windowCTSK (Countersunk) Finish Washer

 A type of washer designed to be used with countersunk screws, allowing the screw head to sit flush with the surface it's fastening. They provide a smooth, finished appearance and can prevent the screw head from splitting the material, especially in wood. These washers are often used in applications where aesthetics are important, as they create a clean, professional look.


A NEO-BONDED sealing washer
Known as a bonded sealing washer, is a type of specialty washer that combines a metal washer with an elastomer (like neoprene or EPDM) ring. This design creates a leak-proof seal around a screw or bolt, particularly in applications where a strong, reliable seal is needed to prevent leaks or dampen vibration. The metal washer provides strength and prevents over-compression of the elastomer, while the elastomer provides the sealing and cushioning properties.

Split Washer

Also known as a External link opens in new tab or windowspring lock washer, is a type of washer designed to create tension and prevent bolts and nuts from loosening. It's characterized by a break or split in its design, which allows it to exert a spring-like force when compressed. This force creates friction and helps maintain the clamping force of the bolt, preventing it from loosening due to vibration or other forces. 

Belleville Washer

also known as a disc spring or conical washer, is a spring that's shaped like a washer with a slight curve or cone. It's designed to apply a spring force when compressed, providing continuous tension on bolted connections, helping to maintain the tightness of fasteners, especially in environments with vibration or thermal expansion.

Fender Washer, Dock Washer

A type of flat washer with a larger outer diameter compared to its inner diameter. This wider outer diameter allows them to distribute load over a larger area, which is especially useful for thin or fragile materials like sheet metal. Fender washers are often used in automotive applications, particularly for securing parts to fenders, hence their name.  Dock washers are typically thicker than standard flat washers and are commonly used in docks, marine construction, and other applications where load distribution and reinforcement are needed. 

Phil Oval Washer

A type of fastener where a flat washer with an oval shape is combined with a Phillips head screw. The oval shape of the washer allows the screw head to sit flush with the surface, providing a clean and aesthetically pleasing finish. These are often used in applications where a smooth, countersunk appearance is desired. 

Wide vibration, narrow vibration  Lockwasher Pair

A specialized fastener system designed to prevent bolt loosening in demanding applications by employing a wedge-locking mechanism created by a pair of washers with inclined cams and radial teeth. These washers work by creating a wedge effect that resists loosening, even under extreme conditions.

Wavy Spring Disc Washer

Type of fastener with a wavelike shape designed to provide a spring force and absorb shock in various applications. These washers are commonly used to create a small gap between two surfaces, offering a flexible spacer and locking mechanism while minimizing vibration and preventing loosening of fasteners.

Rubber Washer

Circular piece of rubber with a hole in the center. It's used to create a seal, dampen vibrations, and distribute the force of a fastener, like a screw or bolt, across a wider area. They are commonly used in plumbing, electrical, and mechanical applications. 

Tab Washer

Designed to prevent nuts and bolts from loosening due to vibration or rotation. It achieves this by using a tab or tabs that bend against the bolted surface, creating a physical stop to resist movement. 

Square Plate Washer

They are manufactured to help strengthen and distribute the load at the critical connections. They are also designed to give greater surface than the standard cut washers.

Toothed Star Washer

Type of lock washer with teeth or serrations extending inward or outward. These teeth bite into the bearing surface to prevent loosening due to torque and vibration. They are particularly effective when used with soft materials like aluminum or plastic.