Cal-Fasteners, Inc.
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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.
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
Serrated Flange Screws Diameters
Serrated Flange Screws are available on the FCH Network with Imperial/US diameters that range from #0 to 5 1/2 and with Metric diameters that range from M3 to M20. The length of Serrated Flange Screws is usually measured from the point to the underside of the head.
Serrated Flange Screws Lengths
Serrated Flange Screws are available on the FCH Network with lengths that range from 1/4 to 18.
Serrated Flange Screws Materials
Serrated Flange Screws are available on the FCH Network in materials that range from Steel to Aluminum
Serrated Flange Screws Finishes
Serrated Flange Screws are available on the FCH Network in finishes or coatings that range from Plain to Phosphate