1/2-20 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 
ZAL INDUSCAFlange Screw w serr. (Whiz-Lock eq.)SteelPlain1/2-20 x 2 1/21/2-20 x 2 1/2 hex wshr serrated flange bolt alloy200
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ZAL INDUSCAFlange Screw w serr. (Whiz-Lock eq.)Grade 8Plain1/2-20 x 31/2-20 x 3 hex wshr serrated flange bolt alloy gr 8275
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ZAL INDUSCAFlange Screw w serr. (Whiz-Lock eq.)SteelPlain1/2-20 x 1 1/21/2-20 x 1 1/2 hex wshr serrated flange bolt alloy200
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JacksonMSFlange Screw w serr. (Whiz-Lock eq.)SteelZinc/Clear1/2-201/2-20 nf serrated whiz flange locknut1176
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TownCountryARFlange Screw w serr. (Whiz-Lock eq.)SteelZinc/Clear1/2-201/2-20 flanged serrated whizlock nut zincinquire
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Wurth AdaMNFlange Screw w serr. (Whiz-Lock eq.)Grade 8Phosphate1/2-20 x 2scr hex flange unserrated grade 8 (po) 1/2-20x211,012
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Wurth AdaMNFlange Screw w serr. (Whiz-Lock eq.)Grade 5Zinc/Clear1/2-20 x 3 1/2scr hex flange serrated grade 5 (zn) 1/2-20x3 1/24,966
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Wurth AdaMNFlange Screw w serr. (Whiz-Lock eq.)Grade 8Phosphate1/2-20 x 4scr hex flange unserrated grade 8 (po) 1/2-20x4225
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Wurth AdaMNFlange Screw w serr. (Whiz-Lock eq.)Grade 8Zinc/Yellow1/2-20 x 1 1/2scr hex flange unserrated grade 8 (zy) 1/2-20x1 1/2164
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ACFCAFlange Screw w serr. (Whiz-Lock eq.)SteelZinc/Clear1/2-201/2-20 grade f nylon insert hex flange locknut z/p rohs650
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Kanebridge ILFlange Screw w serr. (Whiz-Lock eq.)SteelZinc/Clear1/2-20 x 3/41/2-20x3/4 serrated hex flanged washer full thread screw case hard zinc & bake10,000
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Kanebridge ILFlange Screw w serr. (Whiz-Lock eq.)SteelZinc/Clear1/2-20 x 1 1/21/2-20x1 1/2 serrated hex flanged washer full thread screw case hard zinc & bake7.500
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TimberlineCOFlange Screw w serr. (Whiz-Lock eq.)Grade 5Zinc/Clear1/2-20 x 1gr5 serr flg scr zn 1/2-20 x 12668
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