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M8 Serrated Flange Screws (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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SupplierLocTypeMaterialFinishSizeDescriptionQty 
GLFOHFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8-1.25 x 16M8-1.25x16 serr hex flange screw cl 8.8 stl zc din 6921 () () ()5000
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GLFOHFlange Screw w serr. (Whiz-Lock eq.)Class 10.9Zinc/ClearM8-1.25 x 20M8-1.25x20 serr hex flange bolt cl 10.9 stl zc din 6921 () () ()11880
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Irwin IndOntFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8 x 20m8 x 20 din 6921 8.8 serrated hex flange bolt zinc plated500
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ASMCILFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8-1.25 x 25M8x1.25x25 coarse cl8.8 hex flange screw with serration med carb zp din 6921200
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EndriesWIFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8-1.25 x 40M8-1.25x40 hex serr flange c/s cl8.8 zinc din 69211000
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EndriesWIFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8 x 10M8x10 class 8.8 serrated hex flange bolt trivalent clear zinc din 692168670
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EndriesWIFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/YellowM8 x 40M8x40 class 8.8 serrated hex flange bolt yellow zinc din 6921794
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EndriesWIFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8 x 40M8x40 class 8.8 serrated hex flange bolt trivalent clear zinc din 6921200
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MTPCAFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8 x 50din 6921 hex flange bolt serrated2,000
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MTPCAFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8 x 16din 6921 hex flange bolt serrated5,200
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MTPCAFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8 x 12din 6921 hex flange bolt serrated2,000
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MTPCAFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8 x 35din 6921 hex flange bolt serrated3,000
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MTPCAFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8 x 25din 6921 hex flange bolt serrated23,126
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MTPCAFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8 x 45din 6921 hex flange bolt serrated2,000
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MTPCAFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8 x 40din 6921 hex flange bolt serratedstock
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MTPCAFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8 x 30din 6921 hex flange bolt serrated19,542
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MTPCAFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8 x 20din 6921 hex flange bolt serrated23,694
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MTPCAFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8-25m8 x 25 din 6921-8.8 zn hex hd flange bolts -serr39,620
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MTPCAFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8-12m8 x 12 din 6921-8.8 zn hex hd flange bolts -serr27,600
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MTPCAFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8-16m8 x 16 din 6921-8.8 zn hex hd flange bolts -serr31,800
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MTPCAFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8-20m8 x 20 din 6921-8.8 zn hex hd flange bolts -serr13,629
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MTPCAFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8-30m8 x 30 din 6921-8.8 zn hex hd flange bolts -serr36,500
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MTPCAFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8-50m8 x 50 din 6921-8.8 zn hex hd flange bolts -serr13,700
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MTPCAFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8-40m8 x 40 din 6921-8.8 zn hex hd flange bolts -serr700
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MTPCAFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8-45m8 x 45 din 6921-8.8 zn hex hd flange bolts -serr300
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MTPCAFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8-35m8 x 35 din 6921-8.8 zn hex hd flange bolts -serr15,900
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MTPCAFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/YellowM8 x 25m8 x 25 din 6921-cl 8.8 ye/zn hex hd flange bolts-serr15,346
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MTPCAFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/YellowM8 x 20m8 x 20 din 6921-cl 8.8 ye/zn hex hd flange bolts-serr25,986
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ACCURATEILFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8-1.25 x 25din 6921 serrated fl/b500
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Alma BoltMIFlange Screw w serr. (Whiz-Lock eq.)Class 9.8PlainM8-1.25 x 16serrated hex fl/b class 90 din 6921272
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Alma BoltMIFlange Screw w serr. (Whiz-Lock eq.)Class 9.8PlainM8-1.25 x 40serrated hex fl/b class 90 din 6921445
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Alma BoltMIFlange Screw w serr. (Whiz-Lock eq.)Class 8.8PlainM8-1.25 x 50serrated hex fl/b din 69211296
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IRFNJFlange Screw w serr. (Whiz-Lock eq.)Class 9.8Zinc/ClearM8-1.25 x 12fl/b with serrations cl 90 din 69215,501
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IRFNJFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8-1.25 x 25fl/b with locking serrations a2 18-8 304 per f/t din 692121,930
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HBBOLTCAFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8-1.25 x 20hex flange serrated zn 13 13 din 6921625
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MMCCILFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8 x 16m8x16 hex flange bolt a2 serrated din 6921inquire
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MMCCILFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8 x 12m8x12 serrated hex flange bolt 8.8 zinc plate din 6921inquire
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WDMBIAFlange Screw w serr. (Whiz-Lock eq.)Class 9.8PlainM8 x 12scr flange serrated si. cl90 (a2k) m8x12 din 6921 (W000)1,200
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AspenPAFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8-1.25 x 16m8-1.25 x 16mm, din 6921, metric, flange bolts, locking serrations, full thread, a2 stainless steel800
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JET IndusWIFlange Screw w serr. (Whiz-Lock eq.)Class 9.8PlainM8-1.25 x 16 x 90flange bolt m8-1.25x16 plain class 90 serrated din 6921218
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EurolinkSCFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8 x 35M8x35 8.8 zinc plated serrated hex head flange screw din 6921 (SERRATED HEX HEAD FLANGE SCREW)5,000
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IRFNJFlange Screw w serr. (Whiz-Lock eq.)Class 10.9Zinc/ClearM8-1.25 x 60fl/b serr cl 10.9 stl per f/t nickel clear & patch din 69217900
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Lubker DiPAFlange Screw w serr. (Whiz-Lock eq.)Class 10.9PhosphateM8-1.25 x 30M8x1.25x30 hex flange bolt ( serrations) prop cl 10.9 blk phos din 69211026
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Kanebridge ILFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8-1.25 x 16m8-1.25x16 metric din 6921 class 8.8 indent hex flanged washer serrated screw full thd zinc31.250
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Kanebridge ILFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8-1.25 x 25m8-1.25x25 metric din 6921 class 8.8 indent hex flanged washer serrated screw full thd zinc22.500
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Kanebridge ILFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8-1.25 x 12m8-1.25x12 metric din 6921 class 8.8 indent hex flanged washer serrated screw full thd zinc37.500
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Kanebridge ILFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8-1.25 x 20m8-1.25x20 metric din 6921 class 8.8 indent hex flanged washer serrated screw full thd zinc25,000
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Kanebridge ILFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8-1.25 x 30m8-1.25x30 metric din 6921 class 8.8 indent hex flanged washer serrated screw full thd zinc20,000
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Kanebridge ILFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8-1.25 x 25m8-1.25x25 din 6921 serrated hex wash flange stainless steel12.500
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Kanebridge ILFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8-1.25 x 16m8-1.25x16 din 6921 serrated hex wash flange stainless steel12.500
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Kanebridge ILFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8-1.25 x 20m8-1.25x20 din 6921 serrated hex wash flange stainless steel12.500
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EurolinkSCFlange Screw w serr. (Whiz-Lock eq.)Class 10.9Zinc/ClearM8 x 16M8x16 10.9 zinc plated serrated hex head flange screw din 6921inquire
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EurolinkSCFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8 x 45M8x45 a2 18-8 304 steel serrated hex head flange screw din 6921inquire
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EurolinkSCFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8 x 25M8x25 a2 18-8 304 steel serrated hex head flange screw din 6921inquire
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EurolinkSCFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8 x 20M8x20 a2 18-8 304 steel serrated hex head flange screw din 6921inquire
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EurolinkSCFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8 x 12M8x12 a2 18-8 304 steel serrated hex head flange screw din 6921inquire
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EurolinkSCFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8 x 40M8x40 a2 18-8 304 steel serrated hex head flange screw din 6921inquire
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EurolinkSCFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8 x 16M8x16 a2 18-8 304 steel serrated hex head flange screw din 6921200
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EurolinkSCFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8 x 30M8x30 a2 18-8 304 steel serrated hex head flange screw din 6921inquire
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EurolinkSCFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2 , 18-8,304,310 etc.)PlainM8 x 70M8x70 a2 18-8 304 steel serrated hex head flange screw din 6921inquire
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EurolinkSCFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8 x 50M8x50 a2 18-8 304 steel serrated hex head flange screw din 6921inquire
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EurolinkSCFlange Screw w serr. (Whiz-Lock eq.)316, 317, A4 StainlessPlainM8 x 45/45M8x45/45 a4 stainless steel serrated full thread hex head flange screw din 6921inquire
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EurolinkSCFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8 x 30/30M8x30/30 a2 18-8 304 steel fully threaded serrated hex head flange screw din 6921inquire
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EurolinkSCFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8 x 55/55M8x55/55 a2 18-8 304 steel serrated hex head flange screw din 6921inquire
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EurolinkSCFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8 x 50M8x50/50 a2 18-8 304 steel fully threaded serrated hex head flange screw din 6921inquire
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EurolinkSCFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8 x 12M8x12 8.8 zinc plated serrated hex head flange screw din 6921inquire
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EurolinkSCFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8 x 65M8x65 a2 18-8 304 steel serrated hex head flange screw din 6921inquire
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EurolinkSCFlange Screw w serr. (Whiz-Lock eq.)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8 x 60M8x60 a2 18-8 304 steel serrated hex head flange screw din 6921inquire
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EurolinkSCFlange Screw w serr. (Whiz-Lock eq.)316, 317, A4 StainlessPlainM8 x 16M8x16 a4 stainless steel serrated hex head flange screw din 6921inquire
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EurolinkSCFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8 x 20M8x20 8.8 zinc plated serrated hex head flange screw din 6921inquire
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EurolinkSCFlange Screw w serr. (Whiz-Lock eq.)Class 10.9PlainM8 x 35m8 x 35 din 6921 10.9 plain finish serrated hex head flange screwinquire
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IRFNJFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8-1.25 x 20fl/b with serrations cl 8.8 nickel clear & bake din 692111311
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IRFNJFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8-1.25 x 20fl/b with serrations cl 8.8 nickel clear & bake din 692111311
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FastWareSaskFlange Screw w serr. (Whiz-Lock eq.)Class 10.9Zinc/YellowM8-1.25 x 16hex fl/b serrations f/t din 69214,573
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FastWareSaskFlange Screw w serr. (Whiz-Lock eq.)Class 10.9Zinc/YellowM8-1.25 x 45hex fl/b serrations f/t din 69211,200
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FastWareSaskFlange Screw w serr. (Whiz-Lock eq.)Class 10.9Zinc/YellowM8-1.25 x 25hex fl/b serrations din 6921100
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RevcarVAFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/YellowM8-1.25 x 20hex flg bolt cl8.8 zy serrated din 6921640,800
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RevcarVAFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/YellowM8-1.25 x 16hex flg bolt cl8.8 zy serrated din 6921159,600
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MTPCAFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8-65m8 x 65 din 6921-8.8 zn hex hd flange bolts -serrstock
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WurthINFlange Screw w serr. (Whiz-Lock eq.)Class 8.8Zinc/ClearM8 x 20m8 x 20 hex flange bolt serrated pc 8.8 zinc plated din 692143,700
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