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Engineering Reference Handbook
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Engineering Reference Handbook

Clamps & Brackets
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Metallic Flat Washers
Miscellaneous Electrical Hardware
Miscellaneous Washers
Non-Metallic Washers
O-Rings
Retaining Rings
Sheet Metal Nuts
Shoulder Washers
Solder Lugs
Solid State Insulators
Spring Clips
Spring Washers
Spacers
Tab, Key & Notch Washers
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Miscellaneous Washer Configurations

These special shaped washers were developed for a broad range of specific applications that require features not available in conventional washers.


Centering 5760

• Used to center a shaft or bolt in a coil spring or an oversized hole
• Various styles are available depending on application
• Various styles are available depending on application
• Style 1 — recesses nut or bolt head while flange supports washer on end of hole
• Style 2 — Flange supports washer on end of hole
• Style 3 — recessed nut or bolt head requires a support to hold it in place, it has no flange


Centers screw in hole - style depends on whether application requires screw head to be recessed
or the type of hole.





Dimple/Countersunk 5724, 5723, 5736, 5728

• Available in various styles depending on applications
• Provides the same function as a flat washer except used with flat head screws
• Can provide sealing functions for flat head screws


This type prevents a screw head from scoring soft material.



Hole is countersunk. Countersunk washer and screw are flush with chassis and prevents screw
from scoring soft material.



This type eliminates countersinking a hole.


Finishing 5725

• Used with flat head screws
• Eliminates countersinking of screw holes
• Provides decorative appearance due to shiny finish
• Good for attaching fabrics and other light materials, because the washer grips away from the hole




Terminal Cup 5737

• Prevents wire from slipping out from under a screw head








“C” Washer 5626, 5726

• Available in fibre and steel — fibre insulates and steel conducts Steel has a higher strength
• Washer slips onto a shaft or bolt after it has been partially assembled
• Used as a retention device on a (grooved) shaft to keep components in place








Split 5627, 5727

• Available in fibre and steel — fibre insulates and steel conducts, and steel has a higher strength
• Washer twists onto a shaft or bolt after it has been partially assembled to take up any end play



Retaining 5758, 5759

• It has two holes — one to hold the washer to the assembly and the other to attach a chain, wire or cord to assembly
• Can act as a guide










Shaft Retention 2714

• Used to retain items on a shaft or retain a shaft in a particular position
• These are permanent after assembly
• Designed for quick assembly by pushing nut over stud







External Retention 2715

• Provides a simple means of retaining a loose component inside a bored hole







Odd Shaped Internal Configurations 5734, 5735, 5730, 5731, 5732

• Available in various shapes including “D”, square, hexagonal and flattened shaft
• Normally used on an odd shaped shaft to prevent the washer from turning relative to the shaft





Odd Shaped External Configurations 5733, 5729, 5738, 5734

• Available in various shapes including “D”, square, rectangular and clipped
• Used for limited space applications
• Flat sides may be used to prevent washer from rotating


Clipped washer is used when the application requires that the washer remain stationary and/or a round washer would not effectively fit.


Internal Tooth & Spring Lock 5855, 5850

• To prevent a nut or bolt head from loosening by the locking action of the teeth
• Internal tooth — abrade the grounding surface in electrical grounding applications to improve connection



Prevents the nut from loosening on screw.


Internal tooth lock washer prevents the nut from loosening on screw.