OSG Thread Forming Tap: #4-48 UNF, H4 / 2B-3B, Plug Chamfer

An OSG thread forming tap creates internal threads by displacing material rather than cutting it, producing stronger, burr-free threads in ductile materials like aluminum, brass, and low-carbon steel. It is ideal for high-speed production environments where chip evacuation is problematic.

This OSG tap is #4-48 UNF size with a plug chamfer, black oxide cobalt finish, and tolerance class H4 / 2B-3B. The cobalt construction provides heat resistance and wear life for threading in harder materials. Manufacturer part number is 1400107201.

3G Electric supplies OSG thread forming taps worldwide, handling full logistics and customs clearance for international orders. As a global industrial sourcing partner, we provide genuine OSG taps like the #4-48 UNF model to customers across machining, automotive, and aerospace industries.

Select an OSG thread forming tap based on material type, thread size, and tolerance class. For ductile materials like aluminum or brass, use a forming tap with H4 / 2B-3B tolerance. Ensure the tap's chamfer type (plug, bottoming, or taper) matches the hole depth and thread length required.