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2 1/2 inch length Square Head Set Screws (ASME B18. 6.2)

Square Head Set Screws, also called a Square Head Grub Screws are screws with a square head usually smaller than the diameter of the screw, designed to hold one object against another object, usually without requiring a nut. Commonly used to secure a shaft against a pulley.

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
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GLFOHSet Screw (Square Head)SteelPlain1/2-13 x 2 1/21/2-13x2-1/2 square set screw cup pt stl pln b18.6.2 () () ()289
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GLFOHSet Screw (Square Head)SteelPlain3/4-10 x 2 1/23/4-10x2-1/2 square set screw cup pt stl pln b18.6.2 () () ()12
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GLFOHSet Screw (Square Head)SteelPlain5/8-11 x 2 1/25/8-11x2-1/2 square set screw cup pt stl pln b18.6.2 () () ()140
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AbabaCASet Screw (Square Head)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 2 1/21/2-13 x 2 1/2 sq hd set screw drilled hd s/s b18.6.239
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JET FITTINGCASet Screw (Square Head)SteelPlain5/8-11 x 2 1/25/8-11x2-1/2 square head set screw cup point alloy steel thru-hardened b18.6.2175
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QFCTXSet Screw (Square Head)SteelGalvanized5/8-11 x 2 1/25/8-11x2 1/2 sq. head set screw cup hdg b18.6.25135
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QFCTXSet Screw (Square Head)SteelPlain1/2-20 x 2 1/21/2-20x2-1/2 sq hd set screw cup point b18.6.225
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Bostwick INSet Screw (Square Head)SteelPlain7/8-9 x 2 1/27/8-9 x 2 1/2 sq hd set cup pt b18.6.28
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Bostwick INSet Screw (Square Head)SteelPlain5/8-11 x 2 1/25/8-11 x 2 1/2 sq hd set cup pt b18.6.218
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Bostwick INSet Screw (Square Head)SteelPlain3/8-16 x 2 1/23/8-16 x 2 1/2 sq hd set cup pt b18.6.265
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Bostwick INSet Screw (Square Head)SteelPlain5/16-18 x 2 1/25/16-18 x 2 1/2 sq hd set cup pt b18.6.290
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Mid-ValleyCASet Screw (Square Head)Silicon BronzePlain3/8-16 x 2 1/2set screw (square head) b18.6.2inquire
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Mid-ValleyCASet Screw (Square Head)Silicon BronzePlain1/2-13 x 2 1/2set screw (square head) b18.6.2inquire
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Mid-ValleyCASet Screw (Square Head)316, 317, A4 StainlessPlain3/8-16 x 2 1/2set screw (square head) b18.6.2inquire
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THRDFASTFLSet Screw (Square Head)SteelPlain1/4-20 x 2 1/2square set cup pt b18.6.2166
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THRDFASTFLSet Screw (Square Head)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 2 1/218-8 ss square set cup pt b18.6.273
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THRDFASTFLSet Screw (Square Head)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 2 1/218-8 ss square set cup pt b18.6.220
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THRDFASTFLSet Screw (Square Head)SteelPlain5/8-11 x 2 1/2square set cup pt b18.6.220
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THRDFASTFLSet Screw (Square Head)SteelPlain3/8-16 x 2 1/2square set cup pt b18.6.217
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THRDFASTFLSet Screw (Square Head)SteelPlain3/4-10 x 2 1/2square set cup pt b18.6.210
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THRDFASTFLSet Screw (Square Head)SteelPlain3/8-16 x 2 1/2square set cup pt b18.6.210
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THRDFASTFLSet Screw (Square Head)SteelPlain1-8 x 2 1/2square set cup pt b18.6.24
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THRDFASTTNSet Screw (Square Head)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 2 1/218-8 ss square set cup pt b18.6.284
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THRDFASTTNSet Screw (Square Head)SteelPlain1/4-20 x 2 1/2square set cup pt b18.6.275
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THRDFASTTNSet Screw (Square Head)SteelPlain1/2-13 x 2 1/2square set cup pt b18.6.213
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THRDFASTMSSet Screw (Square Head)SteelPlain3/4-10 x 2 1/2square set cup pt b18.6.28
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THRDFASTMSSet Screw (Square Head)SteelPlain5/8-11 x 2 1/2square set cup pt b18.6.225
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THRDFASTMSSet Screw (Square Head)SteelPlain3/8-16 x 2 1/2square set cup pt b18.6.275
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THRDFASTMSSet Screw (Square Head)SteelPlain5/16-18 x 2 1/2square set cup pt b18.6.2100
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KBSTNSet Screw (Square Head)SteelPlain5/16-18 x 2 1/25/16-18 x 2 1/2 sq hd set screw b18.6.2680
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KBSTNSet Screw (Square Head)SteelPlain5/8-11 x 2 1/25/8-11 x 2 1/2 sq hd set screw b18.6.284
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KBSTNSet Screw (Square Head)SteelPlain7/8-9 x 2 1/27/8-9 x 2 1/2 sq hd set screw b18.6.221
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THRDFASTFLSet Screw (Square Head)SteelPlain1/2-13 x 2 1/2square set cup pt b18.6.26
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THRDFASTALSet Screw (Square Head)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 2 1/218-8 ss square set cup pt b18.6.22
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THRDFASTFLSet Screw (Square Head)SteelPlain1/4-20 x 2 1/2square set cup pt b18.6.229
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THRDFASTFLSet Screw (Square Head)SteelPlain5/8-11 x 2 1/2square set cup pt b18.6.26
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THRDFASTALSet Screw (Square Head)SteelPlain9/16-12 x 2 1/2square set cup pt b18.6.224
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THRDFASTALSet Screw (Square Head)SteelPlain5/16-18 x 2 1/2square set cup pt b18.6.2107
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THRDFASTMSSet Screw (Square Head)SteelPlain1-8 x 2 1/2square set cup pt b18.6.28
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THRDFASTALSet Screw (Square Head)SteelPlain1-8 x 2 1/2square set cup pt b18.6.25
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WSBKYSet Screw (Square Head)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 2 1/2screw set sqr cp (18-8) 1/2-13x2 1/2 b18.6.21,100
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WSBKYSet Screw (Square Head)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 2 1/2screw set sqr cp (18-8) 1/2-13x2 1/2 b18.6.21,050
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FACCAOntSet Screw (Square Head)SteelPlain5/8-11 x 2 1/2square head set screw cup point 5/8-11 unc x 2-1/2 long steel case hardened plain ansi b18.6.2 b18.6.2324
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