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
SpencerOHFlange Screw w serr. (Whiz-Lock eq.)Grade 5Zinc/Clear5/8-18 x 5/85/16-18 x 5/8 gr5 hex flange bolt serration zinc77000
SpencerOHFlange Screw w serr. (Whiz-Lock eq.)Grade 5Zinc/Clear5/8-18 x 5/85/16-18 x 5/8 gr5 hex fl/b serration77000
Kanebridge ILFlange Screw w serr. (Whiz-Lock eq.)Grade 5Zinc/Clear5/8-11 x 15/8-11x1 serrated hex flanged washer full thread grade 5 w/head markings zinc5,000
Wurth AdaMNFlange Screw w serr. (Whiz-Lock eq.)Grade 8Zinc/Yellow5/8-11 x 1 1/4scr hex flange unserrated grade 8 (zy) 5/8-11x1 1/4290
Wurth AdaMNFlange Screw w serr. (Whiz-Lock eq.)Grade 5Zinc/Yellow5/8-11 x 1 1/4scr hex flange unserrated grade 5 (zy) 5/8-11x1 1/4120
Kanebridge ILFlange Screw w serr. (Whiz-Lock eq.)SteelZinc/Clear5/8-11 x 1 1/45/8-11x1 1/4 serrated hex flanged washer full thread screw case hard zinc & bake5,000
Wurth AdaMNFlange Screw w serr. (Whiz-Lock eq.)Grade 8Zinc/Yellow5/8-11 x 1 1/2scr hex flange unserrated grade 8 (zy) 5/8-11x1 1/23,552
Kanebridge ILFlange Screw w serr. (Whiz-Lock eq.)SteelZinc/Clear5/8-11 x 1 1/25/8-11x1 1/2 serrated hex flanged washer full thread screw case hard zinc & bake3.750
Kanebridge ILFlange Screw w serr. (Whiz-Lock eq.)Grade 5Zinc/Clear5/8-11 x 1 1/25/8-11x1 1/2 serrated hex flanged washer full thread grade 5 w/head markings zinc3.750
Wurth AdaMNFlange Screw w serr. (Whiz-Lock eq.)Grade 8Zinc/Yellow5/8-11 x 1 3/4scr hex flange unserrated grade 8 (zy) 5/8-11x1 3/4290
Kanebridge ILFlange Screw w serr. (Whiz-Lock eq.)SteelZinc/Clear5/8-11 x 1 3/45/8-11x1 3/4 serrated hex flanged washer full thread screw case hard zinc & bake3.750
Kanebridge ILFlange Screw w serr. (Whiz-Lock eq.)SteelZinc/Clear5/8-11 x 25/8-11x2 serrated hex flanged washer full thread screw case hard zinc & bake2.500
Wurth AdaMNFlange Screw w serr. (Whiz-Lock eq.)Grade 8Phosphate5/8-11 x 2 1/4scr hex flange unserrated grade 8 (po) 5/8-11x2 1/49,040
Kanebridge ILFlange Screw w serr. (Whiz-Lock eq.)SteelZinc/Clear5/8-11 x 2 1/45/8-11x2 1/4 serrated hex flanged washer full thread screw case hard zinc & bake1.875
Wurth AdaMNFlange Screw w serr. (Whiz-Lock eq.)Grade 8Zinc/Yellow5/8-11 x 2 1/2scr hex flange unserrated grade 8 (zy) 5/8-11x2 1/22,212
Wurth AdaMNFlange Screw w serr. (Whiz-Lock eq.)Grade 8Plain5/8-18 x 2 1/2scr hex flange unserrated grade 8 (pl) 5/8-18x2 1/27,105
Kanebridge ILFlange Screw w serr. (Whiz-Lock eq.)SteelZinc/Clear5/8-11 x 2 1/25/8-11x2 1/2 serrated hex flanged washer full thread screw case hard zinc & bake1.875
Wurth AdaMNFlange Screw w serr. (Whiz-Lock eq.)Grade 8Phosphate5/8-18 x 2 3/4scr hex flange unserrated grade 8 (po) 5/8-18x2 3/46,787
Wurth AdaMNFlange Screw w serr. (Whiz-Lock eq.)Grade 8Zinc/Yellow5/8-11 x 2 3/4scr hex flange unserrated grade 8 (zy) 5/8-11x2 3/43,960
Wurth AdaMNFlange Screw w serr. (Whiz-Lock eq.)Grade 8Phosphate5/8-11 x 3scr hex flange unserrated grade 8 (po) 5/8-11x35,617
Wurth AdaMNFlange Screw w serr. (Whiz-Lock eq.)Grade 8Plain5/8-11 x 3scr hex flange unserrated grade 8 (pl) 5/8-11x3329
Kanebridge ILFlange Screw w serr. (Whiz-Lock eq.)SteelZinc/Clear5/8-11 x 35/8-11x3 serrated hex flanged washer full thread screw case hard zinc & bake1.625
Wurth AdaMNFlange Screw w serr. (Whiz-Lock eq.)Grade 8Plain5/8-18 x 3 1/2scr hex flange unserrated grade 8 (pl) 5/8-18x3 1/2610
Wurth AdaMNFlange Screw w serr. (Whiz-Lock eq.)Grade 8Zinc/Yellow5/8-11 x 3 1/2scr hex flange unserrated grade 8 (zy) 5/8-11x3 1/21,010
Kanebridge ILFlange Screw w serr. (Whiz-Lock eq.)SteelZinc/Clear5/8-11 x 3 1/25/8-11x3 1/2 serrated hex flanged washer full thread screw case hard zinc & bake1.250
Wurth AdaMNFlange Screw w serr. (Whiz-Lock eq.)Grade 8Zinc/Yellow5/8-11 x 4scr hex flange unserrated grade 8 (zy) 5/8-11x4225
Wurth AdaMNFlange Screw w serr. (Whiz-Lock eq.)Grade 8Zinc/Yellow5/8-11 x 4 1/2scr hex flange unserrated grade 8 (zy) 5/8-11x4 1/21
Wurth AdaMNFlange Screw w serr. (Whiz-Lock eq.)Grade 8Phosphate5/8-11 x 4 1/2scr hex flange unserrated grade 8 (po) 5/8-11x4 1/2210
Wurth AdaMNFlange Screw w serr. (Whiz-Lock eq.)Grade 8Zinc/Yellow5/8-18 x 5scr hex flange unserrated grade 8 (zy) 5/8-18x5614
Wurth AdaMNFlange Screw w serr. (Whiz-Lock eq.)Grade 8Phosphate5/8-11 x 5 1/2scr hex flange unserrated grade 8 (po) 5/8-11x5 1/2194
UNIT FASTMIFlange Screw w serr. (Whiz-Lock eq.)SteelZinc/Clear5/8-115/8-11 serrated flange hex locknut case hardened zinc plated100
TownCountryARFlange Screw w serr. (Whiz-Lock eq.)Grade 8Zinc/Yellow5/8-115/8-11 flanged serrated whizlock nut44
SISAZFlange Screw w serr. (Whiz-Lock eq.)SteelZinc/Clear5/85/8 hex whiz flange lock nut50
WurthINFlange Screw w serr. (Whiz-Lock eq.)SteelPlain5/8-115/8-11 unc-2b hex flange ser case hrd zf coating per 705100300 cps 5035/5039 pack 200 per poly bag1,057
ManscoMIFlange Screw w serr. (Whiz-Lock eq.)SteelZinc/Clear5/8-11hex flange nylon insert locknut ne pattern250

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