Bulk 1/4″-20 Phillips Flat-Undercut Thread-Cutting Screws — Type F, Bright-Zinc Steel 440012 and Schaller are trademarks of

and Schaller are trademarks of their respective owners

✔️ Made from Class 04 steel for durability

Finish: Black Oxide (Mild corrosion resistance

Bulk DIN 6926 Stainless A2 Nylon Flange Locknuts

Note: “PT” indicates Partial Thread variants

Bulk 1/4″-20 Phillips Flat-Undercut Thread-Cutting Screws — Type F, Bright-Zinc Steel 440012 and Schaller are trademarks ofMonster Overview: When a standard 82 flat head is too tall for thin sheet metal or shallow countersinks, step up to 1 4 20 Phillips Flat Undercut Thread Cutting Screws. The undercut design removes roughly 70 % of the head cone, letting you maintain full thread length without losing flush seating. Heat treated carbon steel receives a brilliant bright zinc electro plate, is hydrogen relief baked to IFI specs, and finished with a factory dry wax film for