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1/2-13 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 1/21/2-13x1/2 square set screw cup pt stl pln b18.6.2 () ()152
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GLFOHSet Screw (Square Head)SteelPlain1/2-13 x 5/81/2-13x5/8 square set screw cup pt stl pln b18.6.2 () ()75
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THRDFASTFLSet Screw (Square Head)SteelPlain1/2-13 x 5/8square set cup pt b18.6.259
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Bostwick INSet Screw (Square Head)SteelPlain1/2-13 x 5/81/2-13 x 5/8 sq hd set half dog pt b18.6.250
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THRDFASTFLSet Screw (Square Head)SteelPlain1/2-13 x 3/4square set cup pt b18.6.297
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THRDFASTMSSet Screw (Square Head)SteelPlain1/2-13 x 3/4square set cup pt b18.6.225
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THRDFASTMSSet Screw (Square Head)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 3/418-8 ss square set cup pt b18.6.225
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THRDFASTFLSet Screw (Square Head)SteelPlain1/2-13 x 3/4square set cup pt b18.6.251
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THRDFASTALSet Screw (Square Head)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 3/418-8 ss square set cup pt b18.6.28
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THRDFASTALSet Screw (Square Head)SteelPlain1/2-13 x 3/4square set cup pt b18.6.286
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QFCTXSet Screw (Square Head)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 11/2-13x1 square set screw 18-8 ss cup point b18.6.26
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THRDFASTFLSet Screw (Square Head)SteelPlain1/2-13 x 1square set cup pt b18.6.214
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THRDFASTFLSet Screw (Square Head)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 118-8 ss square set cup pt b18.6.24
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THRDFASTOKSet Screw (Square Head)SteelPlain1/2-13 x 1square set cup pt b18.6.275
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THRDFASTTNSet Screw (Square Head)SteelPlain1/2-13 x 1square set cup pt b18.6.26
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THRDFASTMSSet Screw (Square Head)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 118-8 ss square set cup pt b18.6.248
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ASMCILSet Screw (Square Head)SteelPlain1/2-13 x 11/2-13x1 (ft) coarse square hd set screw cone pt low carb case hard pln b18.6.2100
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OSSCORISet Screw (Square Head)SteelPlain1/2-13 x 11/2-13x1 square set screw b18.6.270
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Wink FastVASet Screw (Square Head)316, 317, A4 StainlessPlain1/2-13 x 1316 (a4) stainless steel square head set screw cup point 1/2-13x1 dimensionally per asme b18.6.240
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THRDFASTALSet Screw (Square Head)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 118-8 ss square set cup pt b18.6.240
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THRDFASTFLSet Screw (Square Head)SteelPlain1/2-13 x 1 1/4square set half dog pt b18.6.2100
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THRDFASTFLSet Screw (Square Head)SteelPlain1/2-13 x 1 1/4square set cup pt b18.6.240
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THRDFASTFLSet Screw (Square Head)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 1 1/418-8 ss square set cup pt b18.6.221
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THRDFASTOKSet Screw (Square Head)SteelPlain1/2-13 x 1 1/4square set cup pt b18.6.250
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THRDFASTMSSet Screw (Square Head)SteelPlain1/2-13 x 1 1/4square set cup pt b18.6.230
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THRDFASTMSSet Screw (Square Head)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 1 1/418-8 ss square set cup pt b18.6.225
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WSBKYSet Screw (Square Head)SteelPlain1/2-13 x 1 1/4assy screw set sqr 1/2-13x1.25 b18.6.2169
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WSBKYSet Screw (Square Head)SteelZinc/Yellow1/2-13 x 1 1/4screw set sqr cp chard (zy) 1/2-13x1 1/4 b18.6.22,100
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KBSTNSet Screw (Square Head)SteelPlain1/2-13 x 1 1/41/2-13 x 1 1/4 sq hd set screw b18.6.2735
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KBSTNSet Screw (Square Head)SteelZinc/Clear1/2-13 x 1 1/41/2-13 x 1 1/4 sq hd set screw plated b18.6.2500
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OSSCORISet Screw (Square Head)SteelPlain1/2-13 x 1 1/41/2-13x1 1/4 square set screw b18.6.2204
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Bostwick INSet Screw (Square Head)SteelPlain1/2-13 x 1 1/41/2-13 x 1 1/4 sq hd set cup pt b18.6.240
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THRDFASTFLSet Screw (Square Head)SteelPlain1/2-13 x 1 1/2square set cup pt b18.6.270
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THRDFASTMSSet Screw (Square Head)SteelPlain1/2-13 x 1 1/2square set cup pt b18.6.220
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General FMISet Screw (Square Head)Grade 8Phosphate1/2-13 x 1 1/21/2-13x1.5 square set scr gr 8 phos b18.6.211,750
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WSBKYSet Screw (Square Head)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 1 1/2screw set sqr cp (18-8) 1/2-13x1 1/2 b18.6.21,991
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KBSTNSet Screw (Square Head)SteelPlain1/2-13 x 1 1/21/2-13 x 1 1/2 sq hd set screw b18.6.2867
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GLFOHSet Screw (Square Head)SteelPlain1/2-13 x 1 1/21/2-13x1-1/2 square set screw cup pt stl pln b18.6.2 () ()40
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THRDFASTALSet Screw (Square Head)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 1 1/218-8 ss square set cup pt b18.6.2527
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THRDFASTALSet Screw (Square Head)SteelPlain1/2-13 x 1 1/2square set cone pt b18.6.249
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GLFOHSet Screw (Square Head)SteelPlain1/2-13 x 1 3/41/2-13x1-3/4 square set screw cup pt stl pln b18.6.2 () ()30
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THRDFASTFLSet Screw (Square Head)SteelPlain1/2-13 x 1 3/4square set cup pt b18.6.214
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Bostwick INSet Screw (Square Head)SteelPlain1/2-13 x 1 3/41/2-13 x 1 3/4 sq hd set cup pt b18.6.230
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THRDFASTALSet Screw (Square Head)SteelPlain1/2-13 x 1 3/4square set cup pt b18.6.2144
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AbabaCASet Screw (Square Head)SteelPlain1/2-13 x 21/2-13 x 2 sq hd set screw hrd stl b18.6.250
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QFCTXSet Screw (Square Head)SteelPlain1/2-13 x 21/2-13x2 square set screw alloy plain b18.6.2125
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Marine FastenersFLSet Screw (Square Head)316, 317, A4 StainlessPlain1/2-13 x 21/2-13x2 square set cup 316 ss 316ss b18.6.2250
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GLFOHSet Screw (Square Head)SteelPlain1/2-13 x 21/2-13x2 square set screw stl pln b18.6.2 () ()100
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THRDFASTFLSet Screw (Square Head)SteelPlain1/2-13 x 2square set cup pt b18.6.230
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THRDFASTFLSet Screw (Square Head)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 218-8 ss square set cup pt b18.6.225
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THRDFASTFLSet Screw (Square Head)SteelPlain1/2-13 x 2square set cup pt b18.6.210
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THRDFASTTNSet Screw (Square Head)SteelPlain1/2-13 x 2square set cup pt b18.6.225
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All SizeTXSet Screw (Square Head)SteelPlain1/2-13 x 21/2-13 x 2 square head set screw b18.6.224
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THRDFASTMSSet Screw (Square Head)SteelPlain1/2-13 x 2square set cup pt b18.6.220
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KBSTNSet Screw (Square Head)SteelPlain1/2-13 x 21/2-13 x 2 sq hd set screw b18.6.2123
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ASMCILSet Screw (Square Head)SteelPlain1/2-13 x 21/2-13x2 (ft) coarse square hd set screw cup pt thru-hardened alloy pln b18.6.2250
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THRDFASTALSet Screw (Square Head)SteelPlain1/2-13 x 2 1/4square set cup pt b18.6.2113
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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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Marine FastenersFLSet Screw (Square Head)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 2 1/21/2-13x2-1/2 square set cup ss b18.6.24380
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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 () ()139
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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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THRDFASTTNSet Screw (Square Head)SteelPlain1/2-13 x 2 1/2square set cup pt b18.6.213
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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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Mid-ValleyCASet Screw (Square Head)Silicon BronzePlain1/2-13 x 2 1/2set screw (square head) b18.6.2inquire
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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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KBSTNSet Screw (Square Head)SteelPlain1/2-13 x 2 3/41/2-13 x 2 3/4 sq hd set screw b18.6.2171
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GLFOHSet Screw (Square Head)SteelPlain1/2-13 x 31/2-13x3 square set screw cup pt stl pln b18.6.2 () ()26
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THRDFASTFLSet Screw (Square Head)SteelPlain1/2-13 x 3square set half dog pt b18.6.211
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THRDFASTMSSet Screw (Square Head)SteelPlain1/2-13 x 3square set cup pt b18.6.218
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WSBKYSet Screw (Square Head)SteelPlain1/2-13 x 3screw set sqr cp chard (pl) 1/2-13x3 b18.6.2532
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THRDFASTALSet Screw (Square Head)SteelPlain1/2-13 x 3square set cup pt b18.6.230
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THRDFASTFLSet Screw (Square Head)SteelPlain1/2-13 x 3 1/2square set cup pt b18.6.219
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THRDFASTTNSet Screw (Square Head)SteelPlain1/2-13 x 3 1/2square set cup pt b18.6.225
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General FMISet Screw (Square Head)SteelZinc/Clear1/2-13 x 3 1/21/2-13x3.5 square set scr cup zinc b18.6.210,215
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WSBKYSet Screw (Square Head)SteelPlain1/2-13 x 3 1/2screw set sqr cp chard (pl) 1/2-13x3 1/2 b18.6.2791
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AbabaCASet Screw (Square Head)SteelPlain1/2-13 x 41/2-13 x 4 sq hd set screw hrd stl b18.6.2105
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BHAMALSet Screw (Square Head)SteelPlain1/2-13 x 41/2-13x4 square set scr b18.6.217
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THRDFASTMSSet Screw (Square Head)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 418-8 ss square set cup pt b18.6.24
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THRDFASTFLSet Screw (Square Head)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 4 1/218-8 ss square set cup pt b18.6.239
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KBSTNSet Screw (Square Head)SteelPlain1/2-13 x 4 1/21/2-13 x 4 1/2 sq hd set screw b18.6.2120
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THRDFASTALSet Screw (Square Head)SteelPlain1/2-13 x 4 1/2square set cup pt b18.6.210
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THRDFASTTNSet Screw (Square Head)SteelPlain1/2-13 x 5square set cup pt b18.6.225
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Bostwick INSet Screw (Square Head)SteelPlain1/2-13 x 51/2-13 x 5 sq hd set cup pt b18.6.227
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THRDFASTFLSet Screw (Square Head)SteelPlain1/2-13 x 6square set cup pt b18.6.233
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THRDFASTFLSet Screw (Square Head)SteelPlain1/2-13 x 6square set cup pt b18.6.219
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THRDFASTTNSet Screw (Square Head)SteelPlain1/2-13 x 6square set cup pt b18.6.2151
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All SizeTXSet Screw (Square Head)SteelPlain1/2-13 x 61/2-13 x 6 square head set screw b18.6.225
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THRDFASTTNSet Screw (Square Head)SteelPlain1/2-13 x 7square set cup pt b18.6.26
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THRDFASTALSet Screw (Square Head)SteelPlain1/2-13 x 10square set cup pt b18.6.23
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