Flat Washers
Flat Washers, or just Plain Washers, are a flat annulus or ring, often of metal, used to spread the load from the head of a screwed fastening to the base material. Flat washers are used to increase the bearing surface of a nut or fastener's head thus spreading the clamping force over a larger area.
Flat Washer (b18.22.1), showing 200, (click on any line for more information)
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| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| Endries | WI | Flat Washer | Steel | Black Oxide | 1.031 x 2.00 x .188 | 42609 1.031x2.00x.188 c1010 case hardened flat washer black oxide | 50 |
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| Endries | WI | Flat Washer | Steel | Zinc/Black | 23/32 x 1 1/8 x .060 | 23/32x1-1/8x.060 flat trivalent black zinc per 168469-j1 | 8760 |
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| Endries | WI | Flat Washer | Brass | Plain | #8 x .172 | #8(s) brass flat (.172x.375x.032) | 100 |
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| Endries | WI | Flat Washer | Steel | Black Oxide | 7/8 | 7/8 finished flat case hardened black oxide 29/32x1-3/4x5/32 | 125 |
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| Buy Flat Washers from one of our FCH Network Members | ||||||||
| Cal Fastenrs | CA | Flat Washer | Steel | Zinc/Yellow | 1.025/1.010 x 1.510 | 1.025/1.010 x 1.510/1.490 x .055/.042 steel f/w zinc yellow rohs f/w | 5,000 |
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| Cal Fastenrs | CA | Flat Washer | Nylon (Polyamide) | Plain | .170 x .375 | .170 id x .375 od x .125 thick nylon flat micro 13sp159/volt sp-0159 micro 13sp159/volt sp-0159 WASH17X37X12N | 500 |
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| Cal Fastenrs | CA | Flat Washer | Brass | Plain | 6 | 6 small pattern f/w brass 6-s 6-s | 400 |
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| Cal Fastenrs | CA | Flat Washer | Nylon (Polyamide) | Plain | .104 x .220 x .031 | .104 id x .220 od x .031 thk nylon flat washer mcmaster carr # 90295a030 micro# 17w02190 | 10,200 |
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| Cal Fastenrs | CA | Flat Washer | Nylon (Polyamide) | Plain | .190 x .335 x .032 | .190 id x .335 od x .032 thk red nylon flat washer micro # 17w03351-red | 1,000 |
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| Cal Fastenrs | CA | Flat Washer | Nylon (Polyamide) | Plain | .190 x .312 x .050 | .190 x .312 x .050 flatwasher nylon 17w03121 seast 5610-96-50 | 500 |
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| MESAFAST | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M12 | flat 18-8 s/s | 299.0 |
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| MESAFAST | CA | Flat Washer | Rubber, Buna-N, Neoprene etc. | Plain | 3/8 (13/16 od) epdm neoprene washer 3/32 thick 3/32 thick | 750.0 |
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| SWACO | OH | Flat Washer | 316, 317, A4 Stainless | Plain | .203 x .562 x .060 .090 | .203x.562x.060-.090 flat washer 316 ss | 32 |
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| SWACO | OH | Flat Washer | Plastic | Plain | .253 x .500 x .031 | .253x.500x.031 thk f/w delrin | 45 |
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| SWACO | OH | Flat Washer | Steel | Fluoropolymer-Based (Xylan, Fluorokote, Teflon) | 1/4 | 1/4 faucet washer ptfe | 310 |
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| SWACO | OH | Flat Washer | Nylon (Polyamide) | Plain | .375x.171x0.62 fw nylon (natural) | 801 |
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| SWACO | OH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .134 x .375 x .050 | .134x.375x.050 flat washer 18-8 st-st | 237 |
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| SWACO | OH | Flat Washer | Copper | Plain | M5 | M5 flat washer copper din 125a | 8 |
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| SWACO | OH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M6 | M6 f/w a2 ss din 7349 | 30 |
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| SWACO | OH | Flat Washer | Nylon (Polyamide) | Plain | 5610-64-62-blk washer flt rnd nylon blk | 3800 |
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| SWACO | OH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5710-507-30 flat washer .205 idx.300 o.d.x.030 thick ss | 1515 |
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| SWACO | OH | Flat Washer | Steel | Plain | 5614-108-31 washer flat acetal | 4400 |
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| SWACO | OH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | 5710-171-60-p flat washer ss pass. | 83 |
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| SWACO | OH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M12 | M12 fw a2 st-st din 433 | 50 |
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| SWACO | OH | Flat Washer | Nylon (Polyamide) | Plain | M4.3 x 9 x 4 | M4 nyl f/w 9odx4.3idx.8 thck | 31 |
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| SWACO | OH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M10 | M10 fw a2 st-st din 433 | 1419 |
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| SWACO | OH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | 1/4 | ms15795-811 comm flt wsh .312x.750x.051-.080 sst 304ss | 17 |
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| SWACO | OH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8 x 7/8 | 3/8x7/8 f/w black-oxide 18-8 | 1185 |
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| SWACO | OH | Flat Washer | Steel | Zinc/Clear | M6 | M6 flat washer stl zinc din 433 | 13368 |
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| SWACO | OH | Flat Washer | Nylon (Polyamide) | Plain | M6 | M6 nylon flat washer natural | 975 |
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| SWACO | OH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/8 | 5/8 commercial flat washer 18-8ss1-1/2od | 4182 |
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| SWACO | OH | Flat Washer | Steel | Zinc/Clear | M10 | M10 f/w stl zinc din 125a | 3651 |
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| NutsBolts | NE | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1 | 1 ss flat washer usa | 237 |
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| NutsBolts | NE | Flat Washer | 316, 317, A4 Stainless | Plain | M20 | 20mm ss flat washer (21m actual) 316ss (a4) | 80 |
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| MESAFAST | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/4 x 1 15/32 x .134 | 3/4 x 1 15/32 x 0.134 ms15795-822 flat washer 18-8 stainless | 36.0 |
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| Mansco | MI | Flat Washer | Rubber, Buna-N, Neoprene etc. | Plain | .385 | .385/.415 id x .860/.890 od x .185/.215 thk f/w blk neoprene duro | 8160 |
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| Mansco | MI | Flat Washer | Steel | Nickel Plated | 1/2 | 1/2 washer cap steel nickel | 12977 |
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| Olander | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #8 | washer ss #8 (187 x 750 x 030) () | 12943 |
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| Olander | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | #5 f/w ss (135 x 312 x 031)w/certs () | 22580 |
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| Olander | CA | Flat Washer | Nylon (Polyamide) | Plain | 093 x 156 x 015 | 093 x 156 x 015 f/w nylon () | 444 |
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| Olander | CA | Flat Washer | Steel | Fluoropolymer-Based (Xylan, Fluorokote, Teflon) | teflon washer (.200 x .303 x .025 ) () | 1050 |
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| Olander | CA | Flat Washer | Nylon (Polyamide) | Electrolytic Zinc Basecoat + Topcoats (Climacoat, Climaseal, etc.) | flat washer nylon(141 x 500 x 093) () | 1300 |
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| Olander | CA | Flat Washer | Brass | Plain | .123 x .178 x .005 | .123 id x .178 od x .005 thk f/w brass () () | 8130 |
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| Olander | CA | Flat Washer | Nylon (Polyamide) | Plain | raf nylon washer (129 x 250 x 031) () | 2796 |
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| Olander | CA | Flat Washer | Nylon (Polyamide) | Electrolytic Zinc Basecoat + Topcoats (Climacoat, Climaseal, etc.) | #6 | wshr nyl #6 (164 x 500 x 010) () | 15529 |
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| Olander | CA | Flat Washer | Steel | Plain | .625 x 6 | 6 x .625 od x .125 thk f/w nyl () () | 2447 |
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| Olander | CA | Flat Washer | Rubber, Buna-N, Neoprene etc. | Plain | wshr neoprene (265 x 745 x 125) () | 3090 |
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| Olander | CA | Flat Washer | Steel | Plain | 1/2 | 1/2 f/w br tin(515 x 875 x 064) () | 875 |
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| Olander | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | washer ss #4 (120 x 370 x 030) () | 1000 |
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| Olander | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | f/w sst .324-.409-.002 () () | 326 |
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| Olander | CA | Flat Washer | Steel | Fluoropolymer-Based (Xylan, Fluorokote, Teflon) | flat washer teflon () | 1773 |
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| Olander | CA | Flat Washer | Rubber, Buna-N, Neoprene etc. | Plain | wshr neoprene (250 x 375 x 025) () | 2689 |
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| Olander | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | .094 x .250 x .03 | #2 flat washer ss(093 x 250 x 016) () | 109385 |
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| Olander | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | wshr ss pass (375 x 531 x 048) () | 842 |
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| Olander | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .105 | f/w sst .105-.255-.020 () () | 999 |
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| Olander | CA | Flat Washer | Rubber, Buna-N, Neoprene etc. | Plain | flat washer neoprene (187 x 680 x 031) () | 4354 |
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| Olander | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | washer ss (099 x 255 x 040) () | 1429 |
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| J&L | IN | Flat Washer | Steel | Plain | 3 1/2 x 1 13/16 x 7/16 | 3 1/2 x 1 13/16 x 7/16 thick tooling washer 4140 b18.22.1 | 59 |
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| J&L | IN | Flat Washer | Steel | Plain | 1/2 x 2 1/4 x 3/16 | 1/2 x 2 1/4 x 3/16 round plate washer b18.22.1 | 168 |
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| J&L | IN | Flat Washer | Steel | Plain | 4 1/2 x 2 x 3/8 | 4 1/2 x 2 x 3/8 thk 4140 flat washer b18.22.1 | 26 |
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| J&L | IN | Flat Washer | Steel | Plain | 2 x 5 | 2 id x 5 od x 1/2 thk flat washer b18.22.1 | 75 |
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| J&L | IN | Flat Washer | Steel | Plain | 2 7/8 x 1 1/8 | 2 7/8 x 1 1/8 x 1/2 thk special flat washer 4140 b18.22.1 | 52 |
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| OSSCO | RI | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 14 | 14 flat 18-8 304 b18.22.1 | 304 |
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| OSSCO | RI | Flat Washer | Brass | Plain | M3 | M3 flat brass | 340 |
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| OSSCO | RI | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M4 | M4 flat 18-8 304 | 84 |
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| OSSCO | RI | Flat Washer | Steel | Plain | M5 | M5 flat | 1,623 |
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| OSSCO | RI | Flat Washer | Copper | Plain | M5 | M5 flat copper | 4 |
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| OSSCO | RI | Flat Washer | Steel | Plain | M6 | M6 flat uss din 7349 | 506 |
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| OSSCO | RI | Flat Washer | Steel | Zinc/Clear | .168 x .3120 x .024 | .3120dx.168idx.024 thick flat zinc b18.22.1 | 18,000 |
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| OSSCO | RI | Flat Washer | Copper | Plain | M6 | M6 flat copper | 100 |
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| OSSCO | RI | Flat Washer | Copper | Plain | M8 | M8 flat copper | 50 |
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| OSSCO | RI | Flat Washer | Nylon (Polyamide) | Plain | .317 x 1/2 x .032 | nylon .317x1/2x.032 thk b18.22.1 | 1,878 |
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| OSSCO | RI | Flat Washer | Nylon (Polyamide) | Plain | #10-32 | 10-32 nylon retaining b18.22.1 | 1,139 |
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| OSSCO | RI | Flat Washer | Nylon (Polyamide) | Plain | .131 x .375 x .093 | nylon .131x.375x.093 thk b18.22.1 | 1,431 |
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| OSSCO | RI | Flat Washer | Steel | Black Oxide | 9/32 x 1.0 x 1/8 | 9/32x1.0x1/8 cse hd b/oxide b18.22.1 | 50 |
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| OSSCO | RI | Flat Washer | Nylon (Polyamide) | Plain | .260 x .687 | .260idx.687odx.125thk nylon black b18.22.1 | 300 |
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| OSSCO | RI | Flat Washer | Steel | Plain | 17/64 x 1/2 x 1/16 | 17/64x1/2x1/16 flat plain steel b18.22.1 | 500 |
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| OSSCO | RI | Flat Washer | Steel | Plain | .127 x .25 x .049 | .127dx.25odx.049th b18.22.1 | 2,850 |
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| OSSCO | RI | Flat Washer | Steel | Black Oxide | #6 | #6 flat type-b narrow series black oxide b18.22.1 | 34 |
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| OSSCO | RI | Flat Washer | Steel | Plain | .129 x .25 x .037 | .25idx.129odx.037thick b18.22.1 | 500 |
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| OSSCO | RI | Flat Washer | Steel | Plain | serrated for socket screws b18.22.1 | 50 |
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| OSSCO | RI | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 0 | 0 flat 18-8 304 b18.22.1 | 900 |
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| MMF | MI | Flat Washer | Aluminum | Chromate Conversion (Iridite, Alodine) | #6 | #6 light washer aluminum p/n nas1149d616j domestic with certs | 68700 |
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| GUIDON | NJ | Flat Washer | Steel | Zinc/Clear | M8 | din 433 SMALL PATTERN | 200 |
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| GUIDON | NJ | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M20 | din 433 SMALL PATTERN | 52 |
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