Imao Corporation Datasheets for Washers

Washers are disks of metal or non-metallic material placed beneath a nut, an axle bearing, or a joint, to relieve friction, prevent leakage, isolate, prevent loosening, or distribute pressure.
Washers: Learn more

Product Name Notes
Spherical Washer -- BJ742-SUS Body Stainless steel (SUS303)
Spherical Washer -- BJ742 Features Cap that keeps corrosion and dirt out of the hex socket of socket-head cap screws.Can be used repeatedly.Designed for installation and removal with a screwdriver or the like.
Bearing Washer -- HTW Features The built-in bearing provies smooth tightening. Using the Bearing Washer allows increasing clamping force by 50%. Body Steel (SUJ2) Black oxide finished
C Washer -- CW Material & Finish Steel (S45C) Quenched and tempered Black oxide finish Heat treated to Rc39-45
Swing C Washer -- SW Washer Steel (S50C) Black oxide finish Heat treated to Rc39-45 Shoulder Screw Shoulder Screw Black oxide finish Heat treated to Rc33-39
Flat Washer -- BJ743 Material: S45C steel Heat Treat: Quenched and tempered Finish: Black oxide