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3/8 Square Washers

Square Washers can be either flat or curved. Square Curved Washers are commonly used for nut eye bolts and machine bolts. Square washers are designed for outdoor use in challenge courses, zip lines and other outdoor applications and provide greater holding power than round washers.

44 results, (click on any line for more information)

Buy Square Washers from one of our FCH Network Members
SupplierLocTypeMaterialFinishSizeDescriptionQty 
BoltCraftNESquare Washer (Flat & Curved)SteelZinc/Clear3/8 x 1/4 x 1 5/83/8 x 1/4 x 1-5/8 x 1-5/8 square washer zinc 50/box24,550
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THRDFASTFLSquare Washer (Flat & Curved)SteelPlain3/8 x 1sq415
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OBRIENOHSquare Washer (Flat & Curved)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain.41 x 1 x .09.41 square id 1 round od .09 thk s/s flat225
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Ace Bolt MSSquare Washer (Flat & Curved)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8 x 13/8 x 1 sq wash {corners turned up} 18-8 ss5800
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APIIASquare Washer (Flat & Curved)SteelZinc/Clear0.438 x 1.375 x .090square jds955
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AbabaCASquare Washer (Flat & Curved)SteelGalvanized3/8 x 1 5/83/8 x 1 5/8 square washer electro galv200
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MAINSOURCNHSquare Washer (Flat & Curved)SteelPlain3/8 x 1 5/83/8x1 5/8 sq. channel111
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MESAFASTCASquare Washer (Flat & Curved)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8 x 1 5/8square 18-8 30425.0
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MESAFASTCASquare Washer (Flat & Curved)SteelPlain3/8 x 1 5/8square eg50.0
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THRDFASTTNSquare Washer (Flat & Curved)316, 317, A4 StainlessPlain3/8 x 1 5/8t-316 ss sq100
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EndriesWISquare Washer (Flat & Curved)SteelZinc/Clear3/8 x 1 5/83/8x1-5/8 sq channel strut zinc900
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HBBOLTCASquare Washer (Flat & Curved)316, 317, A4 StainlessPlain3/8 x 1 5/8square channel s 316 ss100
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NutsBoltsNESquare Washer (Flat & Curved)SteelGalvanized3/8 x 2 x 1/83/8 x 2 x 1/8 sq washer hdg19744
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IPCVASquare Washer (Flat & Curved)SteelGalvanized3/8 x 2 x 23/8x2 x 2 square s steel hot dip galvanized 1/4 thick3,834
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HodellOHSquare Washer (Flat & Curved)SteelPlain3/8 x 2 x 23/8x2 x 2x1/8 thk sq pln ()510
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THRDFASTFLSquare Washer (Flat & Curved)SteelPlain3/8 x 2 1/2sq14
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THRDFASTALSquare Washer (Flat & Curved)SteelPlain3/8 x 3 3/83/8x3 square (no hole) 3/8 thk2460
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LippinCASquare Washer (Flat & Curved)SteelGalvanized3/8 x 3 1/2 x 1 1/43/8 x 3 1/2 x 1 1/4 square washer hdg1569
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LippinCASquare Washer (Flat & Curved)SteelGalvanized3/8 x 3 1/2 x 13/8 x 3 1/2 x 1 square washer hdg6973
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LippinCASquare Washer (Flat & Curved)SteelGalvanized3/8 x 3 1/2 x 1 1/83/8 x 3 1/2 x 1 1/8 square washer hdg1575
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LippinCASquare Washer (Flat & Curved)SteelPlain3/8 x 3 1/2 x 13/8 x 3 1/2 x 1 square washer plain850
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LippinCASquare Washer (Flat & Curved)SteelPlain3/8 x 3 1/2 x 1 1/83/8 x 3 1/2 x 1 1/8 square washer plain722
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LippinCASquare Washer (Flat & Curved)SteelPlain3/8 x 3 1/2 x 1 1/43/8 x 3 1/2 x 1 1/4 square washer plain72
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THRDFASTFLSquare Washer (Flat & Curved)SteelPlain3/8 x 4sq7
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LippinCASquare Washer (Flat & Curved)SteelGalvanized3/8 x 4 x 5/83/8 x 4 x 5/8 square washer hdg2958
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THRDFASTFLSquare Washer (Flat & Curved)SteelPlain3/8 x 4 1/2sq64
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THRDFASTFLSquare Washer (Flat & Curved)SteelPlain3/8 x 5sq15
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JacksonMSSquare Washer (Flat & Curved)SteelGalvanized3/8 bolt size 2 x 2 x 1/8 thick 7/16 hole in center square washer h.d.g.5442
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WeaverWASquare Washer (Flat & Curved)SteelGalvanized3/83/8 square strut galv 2 dia154
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ExpressCASquare Washer (Flat & Curved)SteelGalvanized3/83/8 no twist square 1-5/8x1-5/8 flat plate fitting electro galvanized1059
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ExpressCASquare Washer (Flat & Curved)SteelPlain3/83/8 strut square819
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JacksonMSSquare Washer (Flat & Curved)SteelZinc/Clear3/83/8 bolt size 2 x 2 x 1/8 thick 7/16 hole in center square washer zinc plated500
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Purchase MOSquare Washer (Flat & Curved)SteelZinc/Clear3/83/8 square channel washer stl zinc for flat plate fittings 7/16 id300
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NutsBoltsNESquare Washer (Flat & Curved)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/83/8 square washer ss262
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ASFCORPMISquare Washer (Flat & Curved)SteelZinc/Clear3/83/8 sq flt wshr tri zn fe/zn 5an pkg 100 per eaton b-line b201zn400
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KBSTNSquare Washer (Flat & Curved)SteelPlain3/83/8 sq chnel wsher fig689 (f201) d201476
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KBSTNSquare Washer (Flat & Curved)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/83/8 stainless!sq chnl wsh d201ss 73856200
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HBBOLTCASquare Washer (Flat & Curved)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8sq channel 18-8 304127
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HBBOLTCASquare Washer (Flat & Curved)SteelGalvanized3/8sq channel elec247
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EndriesWISquare Washer (Flat & Curved)Grade 5Zinc/Clear.404/.414 square id x.686/.696x.0495/.0595 grade 5 flat washer trivalent clear zinc2700
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Fastener OHSquare Washer (Flat & Curved)SteelZinc/Clear3/8square for 1 5/8 strut. 3/8 bolt zinc plated 100
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Raw ProduNJSquare Washer (Flat & Curved)SteelZinc/Clear3/8square washers zinc 3/8500
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Raw ProduNJSquare Washer (Flat & Curved)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8 x 1 5/8square washers 304 ss 3/8 x 1-5/824
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Fastener OHSquare Washer (Flat & Curved)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8square strut 3/8 18-8 304 steel 100
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