Bulk #4-40 Socket Head Cap Screws – Coarse Thread, Alloy Steel, Black Oxide – Monster Bolts 12.9 Hex keys available here

Hex keys available here

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

Seam Type: Seamless barrel with internal wire stop and clear inspection window

Solder: Lead-free

Bulk #4-40 Socket Head Cap Screws – Coarse Thread, Alloy Steel, Black Oxide – Monster Bolts 12.9 Hex keys available hereMonster 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.