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DIN 6921 Serrated Hex Flange Screw by Material, Finish and Size
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.
Search thousands of Metric fasteners by DIN specification, including DIN 6921 Serrated Flange Screws, in the FCH Sourcing Network database of first-run, surplus, odd lot, slow-moving and hard to find fasteners.
Serrated Flange Screws are a form of hex head bolt with a wider serrated flange under the head. The circular serrated flange under the head serves as a washer and a locking device, spreading the load and providing nearly four times the bearing area of a regular hex screw. Flange bolts are commonly used in the frames of vehicles, especially trucks. Non-serrated flange bolts are most commonly used.
Common applications of Serrated Flange Screws are:
- • Automotive
- • Plumbing
- • Electronics
DIN 6921 Serrated Flange Screws by Metric Sizes
Serrated Flange Screws are available on the FCH Network with metric diameters that range from M4 to M20, and with metric lengths that range from 8mm to 130mm.
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DIN 6921 Serrated Flange Screws by Materials
DIN 6921 Serrated Flange Screws are available on the FCH Network in materials that range from Class 8.8 to 316, 317, A4 Stainless.
DIN 6921 Serrated Flange Screws by Coatings/Finishes
DIN 6921 Serrated Flange Screws are available on the FCH Network in finishes or coatings that range from Plain to Phosphate.