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5/16 Non-Serrated Flange Screw (ASME B18. 2.1)

Frame Bolts are hex washer head bolts with a flat washer bearing surface. They are made from high-alloy steel, and commonly used on truck frames, hence the name frame bolt. The flange eliminates the need for washers. They are covered under ASME Standard B18.2.1

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
AbabaCAFlange Screw w/o serr. (Frame Bolt)SteelBlack Oxide5/16-18 x 13/16 1/25/16-18 x 13/16 1/2 hex 21/32 wsh blk hex body bolt b18.2.14
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AbabaCAFlange Screw w/o serr. (Frame Bolt)SteelBlack Oxide5/16-18 x 1 7/85/16-18 x 1 1/2 hex 7/8 wsh blk hex l/wsh body bolt b18.2.13
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AbabaCAFlange Screw w/o serr. (Frame Bolt)SteelZinc/Clear5/16-18 x 255/16-18 x 25mm flanged hex drive insert zinc alloy b18.2.150
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GLFOHFlange Screw w/o serr. (Frame Bolt)Grade 8Zinc/Yellow5/16-18 x 15/16-18x1 hex hd serr flange screw grade 8 stl zy b18.2.1 () () ()4727
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GLFOHFlange Screw w/o serr. (Frame Bolt)Grade 8Plain5/16-18 x 15/16-18x1 hex flange bolt grade 8 stl pln w/patch b18.2.1 () () ()693
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GLFOHFlange Screw w/o serr. (Frame Bolt)Grade 5Zinc/Clear5/16-18 x 1 1/25/16-18x1-1/2 serrated flange bolt-full thread-grade 5-zinc-cr3 b18.2.1 () () ()75
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GLFOHFlange Screw w/o serr. (Frame Bolt)SteelZinc/Clear5/16-18 x 15/16-18x1 hex drive-flanged-insert-zinc alloy b18.2.1 () () ()266
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GLFOHFlange Screw w/o serr. (Frame Bolt)Grade 8Plain5/16-18 x 0.955/16-18x0.95 hex flange bolt per dwg grade 8 stl pln b18.2.1 ()36310
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GLFOHFlange Screw w/o serr. (Frame Bolt)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 3/45/16-18x3/4 hex flange bolt 18-8 s/s b18.2.1 ()2
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GLFOHFlange Screw w/o serr. (Frame Bolt)Grade 5Zinc/Clear5/16-18 x 1 1/45/16-18x1-1/4 hex flange bolt grade 5 stl zc b18.2.1 ()50
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GLFOHFlange Screw w/o serr. (Frame Bolt)Grade 8Plain5/16-18 x 0.955/16-18x0.95 hex flange bolt w/adhesive per dwg grade 8 stl pln b18.2.1 ()60435
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GLFOHFlange Screw w/o serr. (Frame Bolt)Grade 5Zinc/Clear5/16-18 x 3/45/16-18x3/4 hex flange bolt grade 5 stl zc b18.2.1 () () ()2300
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Irwin IndOntFlange Screw w/o serr. (Frame Bolt)SteelZinc/Clear5/16-185/16-18 unc hex flange non serrated zinc b18.2.133200
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ASMCILFlange Screw w/o serr. (Frame Bolt)Grade 8Plain5/16-18 x 1 1/4coarse gr8 hex fl/b b18.2.1475
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ASMCILFlange Screw w/o serr. (Frame Bolt)Grade 8Plain5/16-18 x 2 1/2coarse gr8 hex fl/b b18.2.177
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AbabaCAFlange Screw w/o serr. (Frame Bolt)SteelPlain5/16-18 x 13/165/16-18 x 13/16 hwh body bolt blk/bx50 b18.2.11
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AbabaCAFlange Screw w/o serr. (Frame Bolt)SteelBlack Oxide5/16-18 x 13/16 1/25/16-18 x 13/16 1/2 hex 21/32 wsh blk hex body bolt b18.2.11
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AbabaCAFlange Screw w/o serr. (Frame Bolt)SteelBlack Oxide5/16-18 x 1 7/85/16-18 x 1 1/2 hex 7/8 wsh blk hex l/wsh body bolt b18.2.13
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AbabaCAFlange Screw w/o serr. (Frame Bolt)SteelBlack Oxide5/16-18 x 1 7/85/16-18 x 1 1/2 hex 7/8 wsh blk hex l/wsh body bolt b18.2.14
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Alma BoltMIFlange Screw w/o serr. (Frame Bolt)Grade 5Plain5/16-18 x 1/25/16-18 x 1/2 spin lock bolt gr5 b18.2.19844
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JET FITTINGCAFlange Screw w/o serr. (Frame Bolt)Grade 5Plain5/16-18 x 3/45/16-18x3/4 serr hex flange bolt gr.5 zi 406120 b18.2.17612
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JET FITTINGCAFlange Screw w/o serr. (Frame Bolt)Grade 8Plain5/16-18 x 25/16-18x2.00 indented hex flange bolt stl gr8 zi b18.2.1370
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JET FITTINGCAFlange Screw w/o serr. (Frame Bolt)Grade 5Zinc/Clear5/16-18 x 25/16-18x2 indented hex washer flange bolt steel grade 5 zinc BS5FLB02502018T b18.2.1400
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JET FITTINGCAFlange Screw w/o serr. (Frame Bolt)Grade 5Zinc/Clear5/16-18 x 3/45/16-18x3/4 indented hex washer flange bolt steel grade 5 zinc BN5FLT02500618T b18.2.1780
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JET FITTINGCAFlange Screw w/o serr. (Frame Bolt)Grade 5Plain5/16-18 x 1 1/25/16-18x1 1/2 hex serr flange st grade 5 zi cr3 406126 b18.2.12560
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QFCTXFlange Screw w/o serr. (Frame Bolt)Grade 8Plain5/16-18 x 15/16-18x1 hex flange bolt gr8 plain b18.2.1200
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QFCTXFlange Screw w/o serr. (Frame Bolt)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 5/85/16-18x5/8 hex flange bolt w/serrations 18-8 s/s steel b18.2.1106259
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QFCTXFlange Screw w/o serr. (Frame Bolt)Grade 5Zinc/Yellow5/16-18 x 25/16-18x2 hex flange bolt serr grade 5 yz b18.2.12900
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QFCTXFlange Screw w/o serr. (Frame Bolt)SteelPhosphate5/16-18 x 25/16-18x2 hex flange bolt g 8 phos/oil b18.2.1437
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QFCTXFlange Screw w/o serr. (Frame Bolt)Grade 5Zinc/Yellow5/16-18 x 2 1/25/16-18x2 1/2 hex flange bolt serr grade 5 yz b18.2.12795
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QFCTXFlange Screw w/o serr. (Frame Bolt)Grade 5Zinc/Yellow5/16-18 x 2 1/25/16-18x2 1/2 hex flange bolt serr grade 5 yz b18.2.13600
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QFCTXFlange Screw w/o serr. (Frame Bolt)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 3/45/16-18x3/4 serrated hex flange bolt 18-8ss b18.2.1400
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QFCTXFlange Screw w/o serr. (Frame Bolt)Grade 5Zinc/Clear5/16-18 x 1/25/16-18x1/2 hex serr flange bolt gr5. zinc b18.2.11300
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QFCTXFlange Screw w/o serr. (Frame Bolt)Grade 5Zinc/Clear5/16-18 x 3/45/16-18x3/4 hex serr flange bolt gr5 zinc b18.2.1320
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QFCTXFlange Screw w/o serr. (Frame Bolt)Grade 5Zinc/Clear5/16-18 x 15/16-18x1 hex serr flange bolt gr5 zinc b18.2.1728
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B & K FASTPAFlange Screw w/o serr. (Frame Bolt)SteelPhosphate5/16-18 x 13/165/16-18 x 13/16 hex body bolts phosphate b18.2.146
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B & K FASTPAFlange Screw w/o serr. (Frame Bolt)Grade 5Zinc/Clear5/16-18 x 15/16-18 x 1 hwh serr flange bolts gr 5 zinc b18.2.1510
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B & K FASTPAFlange Screw w/o serr. (Frame Bolt)SteelZinc/Clear5/16-18 x 1 1/45/16-18 x 1 1/4 hwh serr flange bolts zinc b18.2.11503
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B & K FASTPAFlange Screw w/o serr. (Frame Bolt)Grade 2Zinc/Clear5/16-18 x 1 1/45/16-18 x 1 1/4 hex flange bolts gr 2 zinc b18.2.167
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B & K FASTPAFlange Screw w/o serr. (Frame Bolt)Grade 5Zinc/Clear5/16-18 x 1 1/25/16-18 x 1 1/2 hwh flange bolts gr 5 zinc b18.2.1201
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B & K FASTPAFlange Screw w/o serr. (Frame Bolt)Grade 5Zinc/Clear5/16-18 x 25/16-18 x 2 hwh serr flange bolts gr 5 zinc b18.2.1200
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B & K FASTPAFlange Screw w/o serr. (Frame Bolt)Grade 8Plain5/16-18 x 25/16-18 x 2 hwh flange bolts gr 8 plain b18.2.180
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B & K FASTPAFlange Screw w/o serr. (Frame Bolt)Grade 5Zinc/Clear5/16-18 x 2 1/25/16-18 x 2 1/2 hwh serr flange bolts gr 5 zinc b18.2.1450
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B & K FASTPAFlange Screw w/o serr. (Frame Bolt)SteelZinc/Clear5/16-18 x 45/16-18 x 4 hwh serr flange bolts zinc b18.2.1150
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Marine FastenersFLFlange Screw w/o serr. (Frame Bolt)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 1 1/45/16-18x1.25 flange bolt 18-8ss waxed/with serrations-700 per b18.2.1445524
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Marine FastenersFLFlange Screw w/o serr. (Frame Bolt)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 5/85/16-18x5/8 hex flange bolt ss w/serrations b18.2.1143870
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Marine FastenersFLFlange Screw w/o serr. (Frame Bolt)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 7/85/16-18x7/8 hex flange bolt 18-8 serrated b18.2.110500
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Marine FastenersFLFlange Screw w/o serr. (Frame Bolt)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 35/16-18x3 hex flange bolt ss w/serrations b18.2.121564
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General FMIFlange Screw w/o serr. (Frame Bolt)SteelPlain5/16-24 x 0 3/45/16-24 x 0.75 spcl hex flange patch b18.2.112470
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General FMIFlange Screw w/o serr. (Frame Bolt)Grade 8Zinc/Clear5/16-24 x 07/85/16-24 x 0.875 hex flange gr8 zn b18.2.1467545
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General FMIFlange Screw w/o serr. (Frame Bolt)SteelZinc/Clear5/16-18 x 3/45/16-18x.75 hex flange serr bolt 8 zn b18.2.11950
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General FMIFlange Screw w/o serr. (Frame Bolt)Grade 8Phosphate5/16-24 x 15/16-24 x 1 hex flange gr8 phos spcl b18.2.12520
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BHAMALFlange Screw w/o serr. (Frame Bolt)SteelZinc/Clear5/16-18 x 35/16-18x3 srrted hex flange zn b18.2.115
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BHAMALFlange Screw w/o serr. (Frame Bolt)SteelBlack Oxide5/16-185/16-18 srrted hex flange l/nut blk oxide b18.2.130
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OSSCORIFlange Screw w/o serr. (Frame Bolt)Grade 8Zinc/Clear5/16-18 x 15/16-18x1 flange bolt serrated grade 8 plated b18.2.1100
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QFCTXFlange Screw w/o serr. (Frame Bolt)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 15/16-18x1 hex serr flange bolt 18-8 b18.2.1500
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QFCTXFlange Screw w/o serr. (Frame Bolt)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 1 1/45/16-18x1 1/4 serrated hex flange bolt 18-8 b18.2.150
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Bostwick INFlange Screw w/o serr. (Frame Bolt)SteelZinc/Clear5/16-18 x 3/45/16-18 x 3/4 serrated hex flange screw zinc b18.2.1100
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Bostwick INFlange Screw w/o serr. (Frame Bolt)SteelZinc/Clear5/16-18 x 25/16-18 x 2 flange bolt serrated full thread zinc plated b18.2.1100
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JET FITTINGCAFlange Screw w/o serr. (Frame Bolt)Grade 8Plain5/16-18 x 1bolt hex/flg 5/1618x1 grade 8 b18.2.1140
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JET FITTINGCAFlange Screw w/o serr. (Frame Bolt)Grade 8Zinc/Clear5/16-18 x 2bolt hex/flg 5/1618x2 grade 8 zinc plated b18.2.1170
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JET FITTINGCAFlange Screw w/o serr. (Frame Bolt)Grade 5Zinc/Clear5/16-18 x 2 1/4bolt hex/flg 5/1618x2-1/4 grade 5 zinc plated b18.2.1100
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JET FITTINGCAFlange Screw w/o serr. (Frame Bolt)SteelZinc/Clear5/16-24nut flange non-serrated hex 5/16-24 steel zinc plated b18.2.1800
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JET FITTINGCAFlange Screw w/o serr. (Frame Bolt)Grade 8Phosphate5/16-24 x 15/16-24x1 hex flange-frame bolts grade 8 non-serrated black phosphate b18.2.1500
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THRDFASTFLFlange Screw w/o serr. (Frame Bolt)SteelPlain5/16 x 2 3/4hex flange hd masonry screw b18.2.11
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THRDFASTTNFlange Screw w/o serr. (Frame Bolt)SteelZinc/Clear5/16-18 x 1/2hex fl/b b18.2.11,400
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THRDFASTALFlange Screw w/o serr. (Frame Bolt)Grade 5Zinc/Clear5/16-18 x 3/4gr5 hex fl/b b18.2.1200
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KBSTNFlange Screw w/o serr. (Frame Bolt)SteelPlain5/16-18 x 1 1/45/16-18 x 1 1/4 twelve pt flange bolt b18.2.1830
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KBSTNFlange Screw w/o serr. (Frame Bolt)SteelPlain5/16-18 x 1 1/25/16-18 x 1 1/2 twelve pt flange bolt b18.2.11,300
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KBSTNFlange Screw w/o serr. (Frame Bolt)SteelPlain5/16-18 x 1 1/25/16-18 x 1 1/2 twelve point flange bolt b18.2.1inquire
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KBSTNFlange Screw w/o serr. (Frame Bolt)SteelPlain5/16-24 x 15/16-24 x 1 twelve pt flange bolt b18.2.12,000
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WSBKYFlange Screw w/o serr. (Frame Bolt)SteelZinc/Clear5/16-18nut hex flange top lck st (zt) 5/16-18 b18.2.12,660
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WSBKYFlange Screw w/o serr. (Frame Bolt)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 1screw flange (18-8) 5/16-18x1 b18.2.11,162
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MMFMIFlange Screw w/o serr. (Frame Bolt)316, 317, A4 StainlessPlain5/16-18 x 15/16-18 x 1 316 stainless hex flange screw dfar usa b18.2.11506
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MMFMIFlange Screw w/o serr. (Frame Bolt)Grade 8Phosphate5/16-18 x 15/16-18 x 1 gr 8 hex flange screw phos/oil usa b18.2.19312
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MMFMIFlange Screw w/o serr. (Frame Bolt)Grade 8Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)5/16-18 x 3 1/25/16-18 x 3-1/2 gr 8 hex flange screw magni 565 usa b18.2.1400
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MMFMIFlange Screw w/o serr. (Frame Bolt)Grade 8Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)5/16-18 x 15/16-18 x 1 gr 8 hex flange screw magni 565 usa b18.2.115443
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MMFMIFlange Screw w/o serr. (Frame Bolt)Grade 8Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)5/16-18 x 1 1/45/16-18 x 1-1/4 gr 8 hex flange screw magni 565 usa b18.2.1142
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MMFMIFlange Screw w/o serr. (Frame Bolt)316, 317, A4 StainlessPlain5/16-18 x 15/16-18 x 1 316 stainless hex flange screw dfar usa b18.2.11506
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MMFMIFlange Screw w/o serr. (Frame Bolt)Grade 8Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)5/16-18 x 15/16-18 x 1 gr 8 hex flange screw magni 565 usa b18.2.115443
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MMFMIFlange Screw w/o serr. (Frame Bolt)Grade 8Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)5/16-18 x 1 1/45/16-18 x 1-1/4 gr 8 hex flange screw magni 565 usa b18.2.1142
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MMFMIFlange Screw w/o serr. (Frame Bolt)Grade 8Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)5/16-18 x 3 1/25/16-18 x 3-1/2 gr 8 hex flange screw magni 565 usa b18.2.1400
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MMFMIFlange Screw w/o serr. (Frame Bolt)Grade 8Phosphate5/16-18 x 15/16-18 x 1 gr 8 hex flange screw phos/oil usa b18.2.19312
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MMFMIFlange Screw w/o serr. (Frame Bolt)Grade 8Phosphate5/16-18 x 15/16-18 x 1 gr 8 hex flange screw phos/oil usa b18.2.19312
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MMFMIFlange Screw w/o serr. (Frame Bolt)Grade 8Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)5/16-18 x 15/16-18 x 1 gr 8 hex flange screw magni 565 usa b18.2.115443
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MMFMIFlange Screw w/o serr. (Frame Bolt)Grade 8Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)5/16-18 x 15/16-18 x 1 gr 8 hex flange screw magni 565 usa b18.2.115443
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MMFMIFlange Screw w/o serr. (Frame Bolt)Grade 8Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)5/16-18 x 3 1/25/16-18 x 3-1/2 gr 8 hex flange screw magni 565 usa b18.2.1400
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MMFMIFlange Screw w/o serr. (Frame Bolt)316, 317, A4 StainlessPlain5/16-18 x 15/16-18 x 1 316 stainless hex flange screw dfar usa b18.2.11506
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MMFMIFlange Screw w/o serr. (Frame Bolt)Grade 8Phosphate5/16-18 x 15/16-18 x 1 gr 8 hex flange screw phos/oil usa b18.2.19312
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MMFMIFlange Screw w/o serr. (Frame Bolt)Grade 8Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)5/16-18 x 1 1/45/16-18 x 1-1/4 gr 8 hex flange screw magni 565 usa b18.2.1142
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MMFMIFlange Screw w/o serr. (Frame Bolt)Grade 8Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)5/16-18 x 1 1/45/16-18 x 1-1/4 gr 8 hex flange screw magni 565 usa b18.2.1142
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MMFMIFlange Screw w/o serr. (Frame Bolt)316, 317, A4 StainlessPlain5/16-18 x 15/16-18 x 1 316 stainless hex flange screw dfar usa b18.2.11506
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MMFMIFlange Screw w/o serr. (Frame Bolt)Grade 8Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)5/16-18 x 3 1/25/16-18 x 3-1/2 gr 8 hex flange screw magni 565 usa b18.2.1400
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All SizeTXFlange Screw w/o serr. (Frame Bolt)Grade 8Plain5/16-18 x 1 1/45/16-18 x 1 1/4 gr. 8 flange bolt b18.2.11,046
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