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WASHER TYPE FASTENERS

HEICO-LOCK® WEDGE LOCK WASHERS

When the bolt is tightened, the external radial teeth of the HEICO-LOCK® Wedge Lock System embed themselves in an interlocking fashion with the respective paired surface.

HEICO-LOCK® RING LOCK WASHERS

The ring locking system guarantees that the two wedge lock washers are always fastened in the correct position with the wedge shaped cams on the inside and the radial teeth on the outside.

HEICO-LOCK® COMBI-WASHERS

HEICO-LOCK® Combi-Washers enable quick and easy assembly, especially in difficult installation situations. Combine the simple to use HEICO-LOCK® Combi-Washers with all commercially available bolts provided by your suppliers, quickly and easily. Easy mounting and permanent connection thanks to the inset tabs

Heico-Lock_HLK Washer.png

HEICO-LOCK® HLK-WASHERS for Steel Construction

Due to the increased under head radius of HV bolts, the HEICO-LOCK® HLK-Washers are chamfered on the internal diameter to ensure optimal surface contact while tightening.

Fender Washers

Fender washers are round washers with a small inside diameter hole - also known as Body Washers. Fender washers are used to prevent pull-through and provide a greater bearing surface under the fastener. A Fender washer OD is usually 3 x the inner diameter of the washer 

DIN 9021 Fender Washer

Fender Washers - Extra Thick

Fender washers are round washers with a small inside diameter hole. Extra thick fender washers are thicker than standard fender washers and are used to prevent pull-through and provide a greater bearing surface under the fastener.

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Flat Washers

Available in different standards from BS 4320, DIN 125 A and B, and DIN 126. Flat washers are used to distribute loads of threaded bolts, screws and nuts evenly as the fastener is tightened.

DIN 125A Flat Washer Form A

DIN 125B Flat Washer Form B 

DIN 125 Flat Washer Form A, BSW

Flat Washers - Extra Thick

Extra thick flat washers thicker than standard flat washers. These washers are round outer diameter thin plates with a center hole punched to the size of the bolt or screw. Flat washers are used to distribute loads of threaded bolts, screws and nuts evenly as the fastener is tightened.

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Lock Washers - Spring Washers

Spring washers are used to prevent nuts, bolts and screws from vibrating loose. These washers are rings which are split at one point and bent into a helical shape. This version is a Din 127B which is a flat Medium Spring Washer.
 

Lock Washers - Spring Washers Square type

Spring Washers Square type are designed to fit under the head of a socket cap screw. Split ring lock washers are used to prevent nuts, bolts and screws from vibrating loose. These washers are rings which are split at one point and bent into a helical shape.
 

Lock Washers - External Tooth

External tooth lock washers are used for locking and tension. Round washers with teeth on the outside, used for maximum holding power. Must be used with fasteners with adequate head diameter.

DIN 6798 EXT External Star Lock Washer

Lock Washers - Internal Tooth

Internal tooth lock washers are used for locking and tension. A round washer with internal teeth, designed to prevent a nut or screw head from loosening with the strut action created by the teeth.

DIN 6798 INT Internal Star Lock Washer

Neoprene EPDM Washers

Round washers that are slightly beveled with a neoprene lining. Often used with sharp point and self-drilling TEK screws to make a watertight seal around the screw or metal roofing or siding.

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Structural Washers

Structural washers are thick and strong, built for heavy duty applications such as construction. These washers can be found in steel beams and girder fastener assemblies.
 

Square Washers

Square washers are square in shape and may be flat on both sides or flat on one side and beveled on one side. Often used with square head bolts, square washers prevent pull through and provide a larger surface area and greater hold than standard round flat washers.

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Spring Washers

A flat type washer made according to DIN 7980 and DIN 127 B. Used in minimum vibration applications to prevent the fastener from loosening.

DIN 127 Spring Washer

DIN 7980 SQ Heavy Spring Washer

DIN 7980 SQ Medium Spring Washer

Bonded Washers

Bonded Washers are used in the roofing industry as a seal under TEK screws and are available in EPDM and EVA materials. Available in specific hardness ratings.

SABS 1273 Bonded Washer EPDM/EVA

Rivet Washers

Rivet Washers are typically used when using 3.2, 4.0, 4.8 or 6.4mm rivets. Creates a larger diameter or bearing surface during rivet installation.

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Belleville Washers / Conical Spring Washers

A Conical Shell which can be statically or dynamically loaded along its axis. Can support very large loads. 
 

Bowed-E Retaining Rings

External Bowed E radially assembled Rotor Clips or retaining rings are designed to be installed into a groove on a shaft. Once snapped into a groove, these clips exert a force or –preload on retained parts, in order to compensate for accumulated tolerances. Externally bowed are radially installed.
 

E-Style Retaining Rings

External E Radially assembled Rotor Clips or retaining rings are the most popular and widely used style of radial retaining ring. They are called “e” rings because of the three prongs on the inside of the shaft which make contact with the bottom of a groove on a shaft to create a shoulder for effective assembly retention.

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External Shaft Retaining Rings

Axially installed External Rotor Clips or retaining rings are designed to be installed into a groove or shaft. Once installed in a groove on a shaft, a portion of these retaining rings protrude from the groove in order to create a shoulder to keep an assembly.
 

Internal Housing Retaining Rings

Axially installed Internal Rotor Clips or retaining rings are designed to be installed into a groove on a shaft. Once installed in a bore or housing, a portion of these retaining rings protrude from the groove in order to create a shoulder to keep an assembly.

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