Bulk 5/8"-18 Flat Head Socket Cap Screws – Alloy Steel, Black Oxide – Monster Bolts 440262 Our 5/16"-24 L9 Hex Head

Our 5/16"-24 L9 Hex Head Cap Screws with fine threads are ideal for applications where strength and vibration resistance are paramount

High Strength: Alloy steel delivers superior tensile strength and torque resistance for demanding projects

Button Head Design: Rounded

Undercut Flat Head: 82° countersunk head with undercut shank seats flush while retaining thread depth in thin materials

While this Ultrawedge® line is not ICC-approved like Ultrawedge®+

Bulk 5/8"-18 Flat Head Socket Cap Screws – Alloy Steel, Black Oxide – Monster Bolts 440262 Our 5/16"-24 L9 Hex HeadMonster Overview: Built for high clamp loads and clean, low profile installations, Bulk 5 8" 18 Flat Head Socket Cap Screws are manufactured from premium alloy steel and finished with a durable thermal black oxide coating. The 82 flat head seats fully flushideal for machinery, fixtures, and industrial fabrication where clearance and appearance matter. All Monster Bolts black oxide socket fasteners are fully RoHS compliant and ship directly from our U.