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1/4 Flat Washers (ASME B18. 22.1)

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.

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
Irwin IndOntFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/41/4 standard flatwasher 18.8 stainless steel b18.22.1425
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GLFOHFlat Washer316, 317, A4 StainlessPlain1/4 x 0.2811/4 flat 0.281x0.625x0.045 316 s/s b18.22.1 () () ()1942
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GLFOHFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/41/4 flat 18-8 s/s ms-810 b18.22.1 () () ()22590
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GLFOHFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/41/4 flat per mil spec 18-8 s/s b18.22.1 () () ()609
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GLFOHFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4 x .6251/4 flat 18-8 s/s .625 od b18.22.1 () () ()19834
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GLFOHFlat WasherBrassPlain1/41/4 sml pat flat 0.260x0.562x0.040 brs (400 pcs. per lb) b18.22.1 () () ()320
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GLFOHFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4 x 0.625 x 0.0621/4x0.625x0.062 flat 18-8 s/s b18.22.1 () () ()3000
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GLFOHFlat Washer316, 317, A4 StainlessPlain1/41/4 flat 316 s/s domestic b18.22.1 () () ()138
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GLFOHFlat WasherSilicon BronzePlain1/4 x 11/161/4x11/16 od flat brz b18.22.1 () () ()50
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GLFOHFlat Washer316, 317, A4 StainlessPlain1/41/4 flat 316 s/s b18.22.1 () () ()3800
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GLFOHFlat WasherSteelPlain1/41/4 flat narrow ansi b18.21.1 type-b stl pln b18.22.1 () () ()520
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GLFOHFlat WasherSteelPlain1/4 x 7/16 x 1/321/4x7/16x1/32 flat cpr b18.22.1 () () ()100
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GLFOHFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated1/41/4 (.312x.734x.065) ss flat/ 304ss MS15795-811 b18.22.1 () () ()150
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GLFOHFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated1/41/4 (.281x.625x.065) ss flat/ 304ss MS15795-810 b18.22.1 () () ()1855
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GLFOHFlat WasherSteelCadmium/Yellow1/41/4 (.281x.625x.065) steel flat/ cad/y MS27183-10 b18.22.1 () () ()5967
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AbabaCAFlat WasherSteelPlain1/41/4 reg series f/w steel yel plt (1/2 od) b18.22.1800
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AbabaCAFlat WasherSteelPlain1/41/4 lite series f/w steel yel plt (1/2 od) b18.22.11357
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AbabaCAFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/41/4 reg series an f/w stainless steel b18.22.1620
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AbabaCAFlat WasherRubber, Buna-N, Neoprene etc.Plain1/4 x 1/21/4 x 1/2 solid neoprene wsh 3/32 thk b18.22.13400
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AbabaCAFlat WasherAluminumPlain1/4 x 1/21/4 x 1/2 rnd back-up wsh alum b18.22.11100
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AbabaCAFlat WasherNylon (Polyamide)Plain1/4 x 1/21/4 x 1/2 f/w .032 thk nylon b18.22.19052
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AbabaCAFlat WasherNylon (Polyamide)Plain1/4 x 1/21/4 x 1/2 f/w .062 thk nylon b18.22.11030
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AbabaCAFlat WasherNylon (Polyamide)Plain1/4 x 1/2 x 1/81/4 x 1/2 flat washer .125 thk nylon b18.22.1900
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AbabaCAFlat WasherNylon (Polyamide)Plain1/4 x 1/21/4 x 1/2 f/w .187 thk nylon b18.22.1200
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AbabaCAFlat WasherBrassPlain1/4 x 9/161/4 x 9/16 flat washer brass b18.22.120
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AbabaCAFlat WasherRubber, Buna-N, Neoprene etc.Plain1/4 x 5/81/4 x 5/8 solid neoprene wsh 3/32 thk b18.22.14100
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AbabaCAFlat Washer316, 317, A4 StainlessPlain1/4 x 5/81/4 x 5/8 f/w 316 s/s b18.22.1600
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AbabaCAFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4 x 5/81/4 x 5/8 f/w s/s b18.22.120800
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AbabaCAFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4 x 5/81/4 x 5/8 f/w 25/pkg s/s b18.22.121
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AbabaCAFlat WasherSteelPlain1/4 x 11/161/4 x 11/16 f/w hi-density polyethylene .060 thk b18.22.110393
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AbabaCAFlat WasherNylon (Polyamide)Plain1/4 x 11/161/4 x 11/16 f/w .040 thk nylon b18.22.129
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AbabaCAFlat WasherNylon (Polyamide)Plain1/4 x 11/161/4 x 11/16 flat washer .040 thk black nylon b18.22.12202
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AbabaCAFlat WasherNylon (Polyamide)Plain1/4 x 11/161/4 x 11/16 f/w .062 thk nylon b18.22.118
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AbabaCAFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4 x 11/161/4 x 11/16 f/w s/s b18.22.11075
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AbabaCAFlat WasherNylon (Polyamide)Plain1/4 x 3/41/4 x 3/4 f/w .060 thk nylon b18.22.117
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ASMCILFlat Washer316, 317, A4 StainlessPlain1/4 x 11/16 x 0.05commercial flat ss316 b18.22.13,900
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AbabaCAFlat WasherSteelPlain1/41/4 reg series f/w steel yel plt (1/2 od) b18.22.1300
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AbabaCAFlat WasherSteelPlain1/41/4 lite series f/w steel yel plt (1/2 od) b18.22.1500
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AbabaCAFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/41/4 reg series an f/w stainless steel b18.22.1100
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AbabaCAFlat WasherFiberPlain1/4 x 1/21/4 x 1/2 fiber wsh .060 thk. black b18.22.1100
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AbabaCAFlat WasherAluminumPlain1/4 x 1/21/4 x 1/2 rnd back-up wsh alum b18.22.1500
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AbabaCAFlat WasherNylon (Polyamide)Plain1/4 x 1/21/4 x 1/2 f/w .032 thk nylon b18.22.1600
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AbabaCAFlat WasherNylon (Polyamide)Plain1/4 x 1/21/4 x 1/2 f/w .062 thk nylon b18.22.1200
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AbabaCAFlat WasherRubber, Buna-N, Neoprene etc.Plain1/4 x 5/81/4 x 5/8 solid neoprene wsh 3/32 thk b18.22.1200
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AbabaCAFlat Washer316, 317, A4 StainlessPlain1/4 x 5/81/4 x 5/8 f/w 316 s/s b18.22.1400
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AbabaCAFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4 x 5/81/4 x 5/8 f/w s/s b18.22.1900
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AbabaCAFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4 x 5/81/4 x 5/8 f/w 25/pkg s/s b18.22.15
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AbabaCAFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide1/4 x 5/81/4 x 5/8 flat washer s/s blk ox wax b18.22.1100
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AbabaCAFlat WasherSteelPlain1/4 x 11/161/4 x 11/16 f/w hi-density polyethylene .060 thk b18.22.1500
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AbabaCAFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4 x 11/161/4 x 11/16 f/w s/s b18.22.1400
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AbabaCAFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4 x 3/41/4 x 3/4 f/w s/s b18.22.11300
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SIIINFlat Washer316, 317, A4 StainlessPlain1/41/4 flat washers stainless 316 b18.22.15150
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SIIINFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/41/4 18-8 stainless steel large od flat washer) b18.22.13000
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QFCTXFlat WasherSteelPlain1/41/4 pln cut (149per lb 7450/50lb) .312x.734x.065 b18.22.12
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QFCTXFlat WasherSteelZinc/Clear1/41/4 type-b narrow flat trivalent b18.22.11000
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QFCTXFlat WasherCopperPlain1/41/4 type-b narrow flat copper b18.22.18585
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QFCTXFlat WasherBrassPlain1/41/4 type-b narrow flat brass b18.22.12128
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QFCTXFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/41/4 type-b narrow flat 18-8 s/s b18.22.11600
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QFCTXFlat WasherSteelZinc/Clear1/41/4 type-b regular flat triv zinc b18.22.1925
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QFCTXFlat WasherSteelZinc/Clear1/41/4 type-b regular flat triv zinc b18.22.11300
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QFCTXFlat WasherSteelZinc/Clear1/41/4 flat type-b wide tri-zinc b18.22.15000
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QFCTXFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4 1/4 flat 18-8 s/s steel b18.22.1140
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QFCTXFlat WasherSteelGalvanized1/41/4 hdg cut each 145 b18.22.13024
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QFCTXFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated1/4.281x.625x.051-.080 flat 18-8 (1/4) 304ss MS15795-810 b18.22.1800
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QFCTXFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated1/4.281x.625x.051-.080 flat 18-8 (1/4) 304ss MS15795-810 b18.22.1262
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QFCTXFlat WasherNylon (Polyamide)Plain1/41/4 nylon cut .257idx.75odx.062th b18.22.1275
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QFCTXFlat WasherSteelPlain1/4 x 5/81/4x5/8 od steel w/neo b18.22.11650
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QFCTXFlat WasherSteelPlain1/4 x 5/81/4x5/8 od steel w/neo b18.22.1900
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QFCTXFlat WasherNylon (Polyamide)Plain1/4 x 1/21/4 odx1/2 odx1/4 thick nylon flat b18.22.1123
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QFCTXFlat WasherSteelPlain1/4 x 5/81/4x5/8 od stain/neo 71232 b18.22.1400
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B & K FASTPAFlat WasherAluminumPlain1/41/4 aluminum flat washers b18.22.15100
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B & K FASTPAFlat WasherCopperPlain1/4 x 1/2 x 1/321/4 x 1/2 x 1/32 copper flat washers b18.22.17
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B & K FASTPAFlat WasherSilicon BronzePainted1/4 x .6941/4 x .694 flat washers sil bronze .254 x .694 x .040 b18.22.1214
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B & K FASTPAFlat WasherCopperPlain1/4 x 11/16 x .0491/4 x 11/16 x .049 copper flat washers b18.22.198
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B & K FASTPAFlat WasherNylon (Polyamide)Plain1/4 x .257 x 1/21/4 nylon flat washers x .257 id x 1/2 od x 1/16 thick b18.22.1740
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B & K FASTPAFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4 x 5/81/4 x 5/8 od flat washers stainless 18-8 b18.22.18898
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B & K FASTPAFlat Washer316, 317, A4 StainlessPlain1/4 x 5/81/4 x 5/8 od flat washers stainless t316 b18.22.117
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B & K FASTPAFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4 x 3/41/4 x 3/4 od flat washers stainless 18-8 b18.22.1832805
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B & K FASTPAFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4 x .801/4 x .80 od flat washers stainless 18-8 b18.22.11101
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JET FITTINGCAFlat WasherNylon (Polyamide)Plain1/4 x .555 x .047 6/6washer flat 1/4x.555x.047 nylon 6/6 natural b18.22.112580
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JET FITTINGCAFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4 x .375 x .01washer flat 1/4x.375x.01 stainless steel 18-8 b18.22.1500
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JET FITTINGCAFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide1/4 x .500 x .0631/4x.500x.063 flat washer stainless steel 18-8 black oxide b18.22.15590
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JET FITTINGCAFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide1/4 x 1.000 x .050washer flat 1/4x1.000x.050 stainless steel black oxide and wax b18.22.11000
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JET FITTINGCAFlat WasherSteelBlack Oxide1/4 x 1.000 x .0711/4x1.000x.071 flat washer steel black oxide b18.22.18494
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JET FITTINGCAFlat WasherSteelZinc/Clear1/4 x 1.250 x .0711/4x1.250x.071 flat washer steel zinc b18.22.1180
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JET FITTINGCAFlat WasherSteelZinc/Clear1/4 x 1.250 x .0711/4x1.250x.071 flat washer steel zinc b18.22.12124
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JET FITTINGCAFlat WasherSteelZinc/Clear1/4 x 1.50 x .071washer flat 1/4x1.50x.071 steel zinc plated rohs compliant b18.22.11376
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JET FITTINGCAFlat WasherNylon (Polyamide)Plain1/4 x .500 x .032 6/61/4x.500x.032 flat washer nylon 6/6 natural b18.22.1680
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JET FITTINGCAFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4 x .1.250 x .0601/4x.1.250x.060 flat washer stainless steel 18-8 b18.22.135
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JET FITTINGCAFlat WasherSteelZinc/Yellow1/4 x 1.250 x .071 33 9831/4x1.250x.071 flat washer steel zinc yellow per astm b633-98 sc3 not rohs b18.22.12963
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JET FITTINGCAFlat WasherSteelZinc/Yellow1/4 x .625 x .062washer flat 1/4x.625x.062 steel cadii plated yellow approx 22200 parts per 100lbs asme b18.22.1 b18.22.110000
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JET FITTINGCAFlat WasherSteelZinc/Yellow1/4 x .624 x .0621/4x.624x.062 flat washer steel hardened zinc plated yellow b18.22.16500
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JET FITTINGCAFlat WasherSteelZinc/Clear1/4 x .875 x .0501/4x.875x.050 flat washer steel zinc b18.22.114910
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JET FITTINGCAFlat WasherSteelCadmium/Yellow1/4 x .750 x .0621/4x.750x.062 flat washer steel cadmium ii yellow b18.22.12070
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JET FITTINGCAFlat WasherSteelZinc/Clear1/4 x 2.000 x .0461/4x2.000x.046 flat washer steel zinc b18.22.11028
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JET FITTINGCAFlat WasherBrassPlain1/4 x .562 x .040washer flat 1/4x.562x.040 brass b18.22.1377
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THRDFASTFLFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4ms15795-810 18-8 s 304ss b18.22.1231
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THRDFASTFLFlat Washer316, 317, A4 StainlessPlain1/4t-316 ss f/w domestic b18.22.150
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THRDFASTFLFlat WasherGrade 8Plain1/4gr8 flat b18.22.149
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THRDFASTFLFlat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4ms15795-810 18-8 s 304ss b18.22.11,800
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THRDFASTFLFlat WasherRubber, Buna-N, Neoprene etc.Plain1/4rubber (neo) b18.22.1402
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THRDFASTFLFlat WasherSteelPlain1/4flat double thk b18.22.175
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THRDFASTFLFlat WasherAluminumPlain1/4alum flat b18.22.1131
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