Welding Tip, Compatible with Brand Seelye, Compatible with Grainger Part Number 4UZR6, 4UZR7, 4UZR8, 4UZR9, Compatible with Manufacturer Part Number 270-11005, 270-2001FC, 270-2001FCP, Mfr. No. 270-11002, Connection Size 1/4 in, Connection Thread Gender Male, Connection Thread Pitch 1.41 mm, Connection Thread Size 1/4 In.-18, Connection Thread Type NPS, Connection Type Threaded, Features Fit Any of Seelye's Welders