Bulk #4-40 Phillips Flat-Undercut Thread-Cutting Screws — Type F, Bright-Zinc Steel Type_Tools - Hex Keys Material Advantage: 18-8 stainless is

Material Advantage: 18-8 stainless is non-magnetic (annealed)

and industrial users

high-strength fastening

The zinc yellow CR+3 finish offers enhanced corrosion resistance and high visibility while remaining RoHS compliant

00 (Fine Thread)

Bulk #4-40 Phillips Flat-Undercut Thread-Cutting Screws — Type F, Bright-Zinc Steel Type_Tools - Hex Keys Material Advantage: 18-8 stainless isMonster Overview: When standard countersinks are too shallow or sheet metal is wafer thin, choose #4 40 Phillips Flat Undercut Thread Cutting Screws. The undercut head trims most of the 82 cone, giving you maximum thread engagement while finishing perfectly flush in sheet as thin as 0. 040. Heat treated carbon steel sports a brilliant bright zinc electro plate, is hydrogen relief baked to banish embrittlement, and topped with a factory dry wax film