The outer diameter (OD) of a hollow circular pipe is the measurement of the outside edges of the pipe passing through its center.
DM4-FASTWAZ100DIN125
DuratoolPlain Washer, Steel, 4.3Mm, 9MmDM3-FEST-Z100DIN6798
DuratoolLock Washer, Steel, 3.2Mm, 6MmDM4-ITA4-S100DIN6797
DuratoolLock Washer, Ss A4, 4.3Mm, 8MmDM3.5-ITA2-S100DIN6797
DuratoolLock Washer, Ss A2, 3.5Mm, 7MmWASH10
DuratoolPlain Washer, Steel, M10, Pk100; Internal Diameter: 10Mm; External Diameter: 20Mm; Fastener Material: steel; Thread...WASH8
DuratoolWasher,Plain, Steel, M8, Pack of 100WASH6
DuratoolWasher,Plain, Steel, M6, Pack of 100M4 BRASS FULL WASHER
DuratoolWasher,Plain, Brass, M4, Pack of 100M2.5 STAINLESS FORM
DuratoolWASHER, FORM A, S/S, M2.5, Pack 100; Internal Diameter: -; External Fastener Material: Stainless Steel; Thread Size -...M8 STAINLESS FORM A
DuratoolWasher,Plain, Form A, BS4320, DIN 125, A2 Stainless Steel, M8, Pack of 100