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Serrated Flange Screws, Black Oxide (DIN 6921)

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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Buy Serrated Flange Screws from one of our FCH Network Members
SupplierLocTypeMaterialFinishSizeDescriptionQty 
MTPCAFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Black OxideM12 x 20m12 x 20 din 6921-8.8-serr bl/ox hex flange bolt300
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MTPCAFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Black OxideM12 x 50m12 x 50 din 6921-8.8-serr bl/ox hex flange bolt125
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NorthernMNFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Black OxideM6-1.00 x 25flng blt 8.8 serr black rie4037a din 6921399
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