| Future Fastener | TX | Flat Washer | Copper | Plain | M18 x 22 | m18 x 22mm od flat washer copper | 21 |
| Future Fastener | TX | Flat Washer | Copper | Plain | M18 x 24 | m18 x 24mm od flat washer copper | 223 |
| METRO IND | OH | Flat Washer | Steel | Plain | M18 x 28 x 3 | M18x28 flat 3 thick | 70 |
| METRO IND | OH | Flat Washer | Steel | Plain | M18 x 30 x 15 | M18x30 flat 15 thick | 76 |
| YANKEE | NH | Flat Washer | Steel | Zinc/Clear | M18 x 34 | m18 x 34mm wide flat washer din125 steel zinc plated | 74 |
| ASMC | IL | Flat Washer | Steel | Zinc/Clear | M18 x 140 | M18 cl140 hv flat low carb zp din 125a | 130 |
| Jackson | MS | Flat Washer | Class 10.9 | Zinc/Yellow | M18 x 200 | M18 flat 200 hv (for bolt) | 76 |
| Jackson | MS | Flat Washer | Class 10.9 | Plain | M18 x 200 | M18 flat 200 hv (for bolt) | 311 |
| FTS | OH | Flat Washer | Steel | Plain | M18 | f/w tp 200 stl din 125a | 39 |
| SII | IN | Flat Washer | Class 10.9 | Plain | M18 | m18 10.9 plain flat washer) | 100 |
| METRO IND | OH | Flat Washer | Steel | Zinc/Clear | M18 | thick flat din 7349 | 949 |
| Hayes | CA | Flat Washer | Steel | Plain | M18 | flat | 50 |
| Hayes | CA | Flat Washer | Steel | Zinc/Clear | M18 | flat | 1 |
| CIF | IL | Flat Washer | Steel | Aluminum zinc flake (Dacromet, Magnigard, Doerken) | M18 | m18 flat washer per dimensions of din 7349 19 id x 44 od x 8 thick but using spring steel and thru-harden to 29-35 rc magni 565 | 892 |
| CIF | IL | Flat Washer | Steel | Plain | M18 | m18 flatwasher din 7349 plain (low carbon) | 334 |
| MasFasCorp | NV | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M18 | flat 18-8 s/s | inquire |
| METRO IND | OH | Flat Washer | Steel | Plain | M18 | flat din 125 | 1449 |
| METRO IND | OH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M18 | flat s/s din 125 | 259 |
| METRO IND | OH | Flat Washer | Steel | Plain | M18 | flat din 1440 | 164 |
| METRO IND | OH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M18 | flat a2 s/s din 1440 | 184 |
| METRO IND | OH | Flat Washer | Steel | Plain | M18 | thick flat din 7349 | 34 |
| Ababa | CA | Flat Washer | Steel | Zinc/Clear | M18 | m18 f/w stl znc | 394 |
| Ababa | CA | Flat Washer | Steel | Zinc/Clear | M18 | m18 f/w stl znc | 50 |
| Ababa | CA | Flat Washer | Steel | Zinc/Clear | M18 | m18 f/w 5/pkg stl znc | 15 |
| Ababa | CA | Flat Washer | Steel | Zinc/Clear | M18 | m18 f/w 5/pkg stl znc | 3 |
| Hewes | NY | Flat Washer | Steel | Zinc/Clear | M18 | USS f/w pl bn715 din 125a | 1328 |
| Century | FL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M18 | din 125 m18.0 steel 18-8 flat washer | 51 |
| Century | FL | Flat Washer | 316, 317, A4 Stainless | Plain | M18 | m18 washer 316 s/s | 60 |
| Century | FL | Flat Washer | Steel | Plain | M18 | din 125 m18.0 stl zi plt | 134 |
| Bolts Plus | Ont | Flat Washer | Steel | Plain | M18 | bolt bare | 1 |
| Bolts Plus | Ont | Flat Washer | Steel | Zinc/Clear | M18 | bolt | 1 |
| Bolts Plus | Ont | Flat Washer | Steel | Plain | M18 | boltalloy flat | 588 |
| Bolts Plus | Ont | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M18 | bolt 18-8 304 | 41 |
| Irwin Ind | Ont | Flat Washer | Steel | Zinc/Clear | M18 | m18 hard washer zinc dich 34mm od x 19mm id x 3mm thk | 715 |
| Eurolink | SC | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M18 | 18 din 1440 a2 stainless steel washer for clevis pins | inquire |
| Eurolink | SC | Flat Washer | Steel | Plain | M18 | 18 iso 7090 / 125 b 200hv plain finish 19 x 34 x 3 flat washer with chamfer | inquire |
| Eurolink | SC | Flat Washer | Steel | Plain | M18 | 18 iso 7089 / din 125 a 200 hv plain finish flat washer without chamfer | inquire |
| Eurolink | SC | Flat Washer | 316, 317, A4 Stainless | Plain | M18 | 18 iso 7089 / din 125 a a4 200 hv stainless steel flat washer without chamfer | inquire |
| Eurolink | SC | Flat Washer | Steel | Zinc/Clear | M18 | 18 iso 7089 / din 125 a 200 hv zinc plated flat washer without chamfer | inquire |
| MtrcSpec | CA | Flat Washer | Steel | Zinc/Clear | M18 | flat din 125 | stock |
| MtrcSpec | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M18 | flat a-2 din 125 | stock |
| MtrcSpec | CA | Flat Washer | Steel | Zinc/Clear | M18 | flat hi strength zc tp200 | stock |
| THRDFAST | FL | Flat Washer | Steel | Plain | M18 | flat (hardened) din 125a-h | 4 |
| NAPPCO | TX | Flat Washer | Steel | Zinc/Clear | M18 | m18 f/w stl zinc plate din 125 | 205 |
| MMCC | IL | Flat Washer | Steel | Zinc/Clear | M18 | flat washer din 125a zinc/clear | 18615 |
| MMCC | IL | Flat Washer | Steel | Zinc/Clear | M18 | small od flat washer din 433 steel zinc/clear | 1541 |
| MMCC | IL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M18 | flat washer din 125a a2 s/s class 8.8 plain | 230 |
| MMCC | IL | Flat Washer | 316, 317, A4 Stainless | Plain | M18 | flat washer din 125a a4 s/s class 8.8 plain | 515 |
| MMCC | IL | Flat Washer | Steel | Plain | M18 | flat washer din 125a steel thermal black | 3456 |
| MMCC | IL | Flat Washer | Steel | Plain | M18 | flat washer steel plain 18 din 125a | 15177 |
| SJS Prod | CA | Flat Washer | Steel | Plain | M18 | m18 f/w stl plain | 200 |
| BritMet | MD | Flat Washer | Steel | Black Oxide | M18 | din 125A | 159 |
| BritMet | MD | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M18 | din 125a a2 flat washer bn 670 | 995 |
| BritMet | MD | Flat Washer | 316, 317, A4 Stainless | Plain | M18 | din 125a a4 flat washer bn 671 | 708 |
| BritMet | MD | Flat Washer | Steel | Zinc/Clear | M18 | din 125b zp flat washer bn 721 | 800 |
| BritMet | MD | Flat Washer | Brass | Plain | M18 | din 125b brass washer bn 562 | 67 |
| BritMet | MD | Flat Washer | Steel | Plain | M18 | din 125a flat washer plain bn 713 | 54 |
| BritMet | MD | Flat Washer | Steel | Zinc/Clear | M18 | din 126 zp flat washer bn 724 | 20 |
| BritMet | MD | Flat Washer | Steel | Zinc/Clear | M18 | din 125a zp washer bn 715 | 26 |
| BritMet | MD | Flat Washer | Steel | Zinc/Clear | M18 | din 1440 zp flat washer bn 223 | 1 |
| BritMet | MD | Flat Washer | Steel | Plain | M18 | din 7349 flat washer bn 733pl | inquire |
| BritMet | MD | Flat Washer | Steel | Zinc/Yellow | M18 | din 125a yz flat washer bn 717 | inquire |
| Trinity | MI | Flat Washer | Steel | Plain | M18 | m18 flat wshr din 125 z | 96 |
| NutsBolts | NE | Flat Washer | Steel | Zinc/Clear | M18 | flat zp | 543 |
| Future Fastener | TX | Flat Washer | Steel | Zinc/Clear | M18 | m18 flat washer zinc plated (b d3) | 7,210 |
| Future Fastener | TX | Flat Washer | Steel | Black Oxide | M18-3.00 | m18 flat washer black (b d3) | 12,524 |
| Future Fastener | TX | Flat Washer | Copper | Plain | M18 | m18 flat washer (copper) | 76 |
| Future Fastener | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M18 | m18 flat washer stainless steel | 142 |
| Jackson | MS | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M18 | flat a-2 18-8 304 | 454 |
| Wurth | IN | Flat Washer | Steel | Zinc/Clear | M18 | m18 flat washer zinc din 125b pack 250 per poly bag | 13,050 |
| FastWare | Sask | Flat Washer | Steel | Zinc/Yellow | M18 | flat din 126 | 662 |
| MTP | CA | Flat Washer | Steel | Zinc/Clear | M18 | m18 din 125-stl zn flat washers | 11,830 |
| MTP | CA | Flat Washer | Steel | Zinc/Clear | M18 | m18 din 125-200 hv zn flat washers | 24,591 |
| MTP | CA | Flat Washer | Steel | Zinc/Yellow | M18 | m18 din 125-200 hv ye/zn flat washers | 23,028 |
| MTP | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M18 | m18 din 125a2 s.s flat washers | 1,908 |
| MTP | CA | Flat Washer | Brass | Plain | M18 | m18 din 125brass flat washers | 10 |
| MTP | CA | Flat Washer | Steel | Zinc/Clear | M18 | m18 din 433-stl zn flat washers (small o.d.) | 33 |
| Endries | WI | Flat Washer | Steel | Zinc/Clear | M18 | din 125 f/w hexfre96 zc | 957 |
| HBBOLT | CA | Flat Washer | Steel | Zinc/Clear | M18 | flat [] | 126 |
| R&S | OR | Flat Washer | Steel | Plain | M18 | 18mm flat washer hardened class | 25 |
| MTP | CA | Flat Washer | Steel | Zinc/Yellow | M18 | m18 din 125-st/yzn flat washers | stock |
| VertexD | IL | Flat Washer | Steel | Zinc/Clear | M18 | din 125 m18 flat washer zinc type-a | 68441 |
| VertexD | IL | Flat Washer | Steel | Plain | M18 | din 125 m18 flat wshr pln steel type-a | 16168 |
| VertexD | IL | Flat Washer | 316, 317, A4 Stainless | Plain | M18 | din 125 m18 flat washer a4 stain type-a | 11710 |
| UNITED FASTENER | CA | Flat Washer | Steel | Zinc/Clear | M18 | flat | 60 |
| UNITED FASTENER | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M18 | flat 18-8 304 | -20 |
| VertexD | IL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M18 | din 125 m18 flat washer a2 stain type-a | 2590 |
| VertexD | IL | Flat Washer | Steel | Zinc/Yellow | M18 | din 125 m18 flat washer zinc yellow plat | 935 |
| VertexD | IL | Flat Washer | Steel | Zinc/Clear | M18 | din 1440 m18 flat washer zinc pltd | 767 |
| VertexD | IL | Flat Washer | Steel | Plain | M18 | din125 m18 fltwsr 200v frm a type-a steel | 650 |
| MidStates | MI | Flat Washer | Steel | Zinc/Clear | M18 | m18 f/w din 433 znc | 74 |
| ACF | CA | Flat Washer | Steel | Zinc/Yellow | M18 | m18 flatwasher zinc ii | 659 |
| Liberty | IL | Flat Washer | Steel | Zinc/Green | M18 | flat & olive drab din 125a | 53 |
| MESAFAST | CA | Flat Washer | Steel | Zinc/Clear | M18 | m18 flat washer din125z steel zinc steel zinc | 900.0 |
| Alma Bolt | MI | Flat Washer | Steel | Plain | M18 | M18 DIN 125 (HV200) FLAT WASHER PLAIN FINISH | 281 |
| FACCA | Ont | Flat Washer | Steel | Zinc/Clear | M18 | flat washer round m18 steel zinc plated din 125b/st-zp m18 | 4,000 |
| FACCA | Ont | Flat Washer | Steel | Zinc/Clear | M18 | flat washer round m18 steel zinc plated din 125b/st-zp m18 | 4000 |
| MMCC | IL | Flat Washer | Steel | Plain | M18 | m18 flat washer din 126 steel plain | inquire |
| MMCC | IL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M18 | m18 small od flat washer din 433 a2 s/s | inquire |
| MMCC | IL | Flat Washer | 316, 317, A4 Stainless | Plain | M18 | m18 small od flat washer din 433 a4 s/s | inquire |
| MMCC | IL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M18 | m18 thick flatwasher din 7349 a2 s/s | inquire |
| MMCC | IL | Flat Washer | Brass | Plain | M18 | m18 sml od flat was brass din 433 | inquire |
| WMTS | MI | Flat Washer | Steel | Zinc/Clear | M18 | m18 fw z | 647 |
| MMCC | IL | Flat Washer | Steel | Zinc/Green | M18 | m18 flat washer h 200hv zinc olive drab din 125a | inquire |
| MMCC | IL | Flat Washer | Steel | Zinc/Clear | M18 | m18 flat washer steel zinc plate din 1440 | inquire |
| MMCC | IL | Flat Washer | 316, 317, A4 Stainless | Plain | M18 | m18 flat washer a4 200hv iso 7090 | 80 |
| MMCC | IL | Flat Washer | Steel | Plain | M18 | m18-dfars flat washer plain steel din 125a | inquire |
| Wurth Ind | D.F. | Flat Washer | Steel | Zinc/Clear | M18 | m18 f/w zn din 125a | 584 |
| Wurth Ind | D.F. | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M18 | m18 f/w a2 din 125a | - |
| MMCC | IL | Flat Washer | Steel | Plain | M18 | flat -h-200hv-black- din 125a thermal black | 1686 |
| MSTC | MA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M18 | m18 din 125a flat wash w/o chmfr a2ss | 310 |
| MSTC | MA | Flat Washer | Steel | Zinc/Clear | M18 | m18 din 125 heat treat f/w tp200 stl zn | 14 |
| MSTC | MA | Flat Washer | Steel | Zinc/Clear | M18 | m18 din 125a flat wash w/o chmfr stl zn | 261 |
| Trinity | IA | Flat Washer | Steel | Zinc/Yellow | M18 | m18 flat washer din 125a steel znyel | 339 |
| Trinity | IA | Flat Washer | Steel | Zinc/Clear | M18 | m18 flat washer din 125a steel znclr | 832 |
| Trinity | IA | Flat Washer | Steel | Zinc/Yellow | M18 | m18 flat washer din 126 carbon steel znyel | 6293 |
| AFI | FL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M18 | m18 flat washer regular ss | 100 |
| Empire | WA | Flat Washer | Steel | Zinc/Clear | M18 | m18 hardened flat washer zp | 200 |
| Valley Nu | WA | Flat Washer | Steel | Zinc/Black | M18 | flat zb din 125a | 144 |
| THRDFAST | AL | Flat Washer | Steel | Plain | M18 | flat (hardened) din 125a-h | 12 |
| THRDFAST | AL | Flat Washer | Brass | Plain | M18 | flat | 2 |
| THRDFAST | AL | Flat Washer | 316, 317, A4 Stainless | Plain | M18 | a4 ss flat amf | 330 |
| GLF | OH | Flat Washer | Steel | Zinc/Clear | M18 | flat hv200 zc din 125a | 75 |
| THRDFAST | FL | Flat Washer | Steel | Zinc/Clear | M18 | flat (hardened) din 125a-h | 7 |
| GLF | OH | Flat Washer | Steel | Black Oxide | M18 | flat 156855 | 50 |
| AFI | FL | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M18 | m18 flat washer regular ss din125a | 100 |
| GLF | OH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M18 | flat 18-8 s/s din 125a | 125 |
| GLF | OH | Flat Washer | Steel | Zinc/Clear | M18 | flat zc washer | 100 |
