Bulk #4-40 Socket Head Cap Screws – Coarse Thread, Alloy Steel, Black Oxide – Monster Bolts 12.9 and small precision mechanisms

and small precision mechanisms

snag-free finish with M3 Flat (Countersunk) Socket Cap Screws in bulk

Solder: Lead-free

For Co-op cycle training wheels

Includes Screws Only: Locking nut shown in photos is for demonstration

Bulk #4-40 Socket Head Cap Screws – Coarse Thread, Alloy Steel, Black Oxide – Monster Bolts 12.9 and small precision mechanismsMonster Overview: Fix your project right the first time with Bulk #4 40 Socket Head Cap Screws from Monster Bolts. Built from premium alloy steel and finished with a thermal black oxide coating, these screws provide strength, consistency, and a professional black finish ideal for mechanical, electrical, and industrial applications. All Monster Bolts black oxide socket fasteners are fully RoHS compliant and ship directly from our U. S. warehouse.