Brass Enlarger Is your thread size off by one size? Well, then these ENLARGERS will solve that threading problem. They convert holes which fit PG / Metric threads to a larger female thread of the same thread type. [Brass Enlarger] Material: Body & Nut: Nickel Plated Brass O-Ring: Buna-N (Optional) Seal Ring: Polyethylene (Optional) Threads: Any threads as per custom design Size: 5 amp, 10 amp, 13 amp, 15 amp and 16amp. Operating Temperature: -40°F to 212°F (-40°C to 100°C) Short Term: 266°F (130°C) PG to PG THREADS Contact Us Enquire Now