5/16-24 Serrated Flange Screws

Serrated Flange Screws, Serrated Flange Bolts and commonly known by their trade name as Whiz-Lock Bolts, are unslotted hex head flange screws that have serrations under the flange, or on the bearing surface. The flange provides more strength than a regular hex screw, and in some applications, the serrations eliminate the need for lock washers or lock nuts.

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
ISSCOMOFlange Screw w serr. (Whiz-Lock eq.)Grade 5Zinc/Clear5/16-24 x 1/2hex flanged serrated2800
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MTPCAFlange Screw w serr. (Whiz-Lock eq.)Grade 5Zinc/Clear5/16-24 x 1/25/16-24 x 1/2 ifi.111-gr.5 zn hex flange bolts serrated4,700
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MTPCAFlange Screw w serr. (Whiz-Lock eq.)Grade 5Zinc/Clear5/16-24 x 1/2serrated flange bolts f/th1,200
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Kanebridge ILFlange Screw w serr. (Whiz-Lock eq.)SteelZinc/Clear5/16-24 x 1/25/16-24x1/2 serrated hex flanged washer full thread screw case hard zinc & bake50,000
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MTPCAFlange Screw w serr. (Whiz-Lock eq.)Grade 8Zinc/Clear5/16-24 x 1/25/16-24 x 1/2 ifi.111-gr.8 zn hex flange bolts serrated8,800
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Wurth AdaMNFlange Screw w serr. (Whiz-Lock eq.)Grade 5Zinc/Clear5/16-24 x 3/4scr hex flange serrated grade 5 (zt) 5/16-24x3/43,948
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ISSCOMOFlange Screw w serr. (Whiz-Lock eq.)Grade 5Zinc/Yellow5/16-24 x 3/4hex flanged serrated10800
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WSBKYFlange Screw w serr. (Whiz-Lock eq.)Grade 2Plain5/16-24 x 3/4screw hex flange ser gr2 zf 5/16-24x3/45,297
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Kanebridge ILFlange Screw w serr. (Whiz-Lock eq.)SteelZinc/Clear5/16-24 x 3/45/16-24x3/4 serrated hex flanged washer full thread screw case hard zinc & bake37.500
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Kanebridge ILFlange Screw w serr. (Whiz-Lock eq.)SteelZinc/Clear5/16-24 x 15/16-24x1 serrated hex flanged washer full thread screw case hard zinc & bake31.250
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DeltaTXFlange Screw w serr. (Whiz-Lock eq.)SteelZinc/Clear5/16-24 x 1m/b flange whiz835
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JacksonMSFlange Screw w serr. (Whiz-Lock eq.)SteelZinc/Clear5/16-245/16-24 nf serrated whiz flange locknut3634
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ACCURATEILFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-24serr. hex flange locknut 18-8 s/s (fine thread)88
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Wurth AdaMNFlange Screw w serr. (Whiz-Lock eq.)SteelZinc/Yellow5/16-24nut hex serrated flange steel (zy) 5/16-2411,662
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