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5/16 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.

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

Buy Square Washers from one of our FCH Network Members
SupplierLocTypeMaterialFinishSizeDescriptionQty 
FastWareSaskSquare Washer (Flat & Curved)SteelZinc/Yellow0.343 x 0.750 x 0.0600.343 square idx0.750 odx0.060 thick flat c1010-c10206,474
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FastWareSaskSquare Washer (Flat & Curved)SteelZinc/Yellow0.343 x 0.750 x 0.0180.343 square idx0.750 odx0.018 thick flat c1010-c1020275
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Cal FastenrsCASquare Washer (Flat & Curved)AluminumPlain.390 x .875 x .125.390 square id x .875 od x .125 thick special aluminum flat washer +/-.005 id +/-.010 od 5052 h-32 aluminum | +/-.005 id +/-.010 od 5052 h-32 aluminum | +/-.005 id +/-.010 od 5052 h-32 aluminum10,820
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THRDFASTFLSquare Washer (Flat & Curved)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16 x 118-8 ss sq. 1/8 thk b18.22.1159
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BrikksenFLSquare Washer (Flat & Curved)SteelFluoropolymer-Based (Xylan, Fluorokote, Teflon).375 x 1.00 x .125.375 x 1.00 x .125 square flat washer steel/black xylaninquire
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BrikksenFLSquare Washer (Flat & Curved)SteelFluoropolymer-Based (Xylan, Fluorokote, Teflon).375 x 1.00 x .125.375 x 1.00 x .125 square flat washer steel/black xylaninquire
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BrikksenFLSquare Washer (Flat & Curved)SteelFluoropolymer-Based (Xylan, Fluorokote, Teflon).375 x 1.00 x .125.375 x 1.00 x .125 square flat washer steel/black xylaninquire
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BrikksenFLSquare Washer (Flat & Curved)SteelFluoropolymer-Based (Xylan, Fluorokote, Teflon).375 x 1.00 x .125.375 x 1.00 x .125 square flat washer steel/black xylaninquire
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BrikksenFLSquare Washer (Flat & Curved)SteelFluoropolymer-Based (Xylan, Fluorokote, Teflon).375 x 1.00 x .125.375 x 1.00 x .125 square flat washer steel/black xylaninquire
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BrikksenFLSquare Washer (Flat & Curved)SteelFluoropolymer-Based (Xylan, Fluorokote, Teflon).375 x 1.00 x .125.375 x 1.00 x .125 square flat washer steel/black xylaninquire
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BrikksenFLSquare Washer (Flat & Curved)SteelFluoropolymer-Based (Xylan, Fluorokote, Teflon).375 x 1.00 x .125.375 x 1.00 x .125 square flat washer steel/black xylaninquire
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LippinCASquare Washer (Flat & Curved)SteelGalvanized5/16 x 2 3/4 x 3/45/16 x 2 3/4 x 3/4 square washer hdg3505
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LippinCASquare Washer (Flat & Curved)SteelPlain5/16 x 2 3/4 x 3/45/16 x 2 3/4 x 3/4 square washer plain4775
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LippinCASquare Washer (Flat & Curved)SteelGalvanized5/16 x 3 x 7/85/16 x 3 x 7/8 square washer hdg7570
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LippinCASquare Washer (Flat & Curved)SteelPlain5/16 x 3 x 7/85/16 x 3 x 7/8 square washer plain1671
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HBBOLTCASquare Washer (Flat & Curved)SteelGalvanized5/16square channel electro-galv p1062eg p1062eg100
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KBSTNSquare Washer (Flat & Curved)SteelPlain5/165/16 sq wsher fig#689 f201 d200630
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