M10 Counterbore Steel Bung

These metric counterbore weld in bungs are made of 1018 cold rolled mild steel round stock.  They are machined to accept socket head cap screws, AKA allen bolts, flush with the top surface of the bung.  This allows welding up to the where the head of the bolt would be and covers the outer edge of the bolt for a super clean look.  They come in two different lengths, and in 3/4" OD option, great for all your metric fabrication mounting needs.