Female Thread ISO-B Plug SKU Body Size Threads Material HFH1-63 1/8 1/8-27 NPTF Steel HFBH1-61 1/8 1/8-27 NPTF Brass HFSH1-63 1/8 1/8-27 NPTF 303 Stainless HFSSH1-63 1/8 1/8-27 NPTF 316 Stainless HFH1-63-T4 1/8 7/16-20 ORB Steel HFH2-63 1/4 1/4-18 NPTF Steel HFBH2-61 1/4 1/4-18 NPTF Brass HFSH2-63 1/4 1/4-18 NPTF 303 Stainless HFSSH2-63 1/4 1/4-18 NPTF 316 Stainless HFH2-63-BSPP 1/4 1/4-19 BSPP Steel HFBH2-61-BSPP 1/4 1/4-19 BSPP Brass HFSH2-63-BSPP 1/4 1/4-19 BSPP 303 Stainless HFSSH2-63-BSPP 1/4 1/4-19 BSPP 316 Stainless HFH2-63-T6 1/4 9/16-18 ORB Steel HFH3-63 3/8 3/8-18 NPTF Steel HFBH3-61 3/8 3/8-18 NPTF Brass HFSH3-63 3/8 3/8-18 NPTF 303 Stainless HFSSH3-63 3/8 3/8-18 NPTF 316 Stainless HFH3-63-BSPP 3/8 3/8-19 BSPP Steel HFBH3-61-BSPP 3/8 3/8-19 BSPP Brass HFSH3-63-BSPP 3/8 3/8-19 BSPP 303 Stainless HFSSH3-63-BSPP 3/8 3/8-19 BSPP 316 Stainless HFH3-63-T8 3/8 3/4-16 ORB Steel HFH4-63 1/2 1/2-14 NPTF Steel HFBH4-61 1/2 1/2-14 NPTF Brass HFSH4-63 1/2 1/2-14 NPTF 303 Stainless HFSSH4-63 1/2 1/2-14 NPTF 316 Stainless HFH4-63-BSPP 1/2 1/2-14 BSPP Steel HFBH4-61-BSPP 1/2 1/2-14 BSPP Brass HFSH4-63-BSPP 1/2 1/2-14 BSPP 303 Stainless HFSSH4-63-BSPP 1/2 1/2-14 BSPP 316 Stainless HFH4-63-T10 1/2 7/8-14 ORB Steel HFH6-63 3/4 3/4-14 NPTF Steel HFBH6-61 3/4 3/4-14 NPTF Brass HFSH6-63 3/4 3/4-14 NPTF 303 Stainless HFSSH6-63 3/4 3/4-14 NPTF 316 Stainless HFH6-63-BSPP 3/4 3/4-14 BSPP Steel HFBH6-61-BSPP 3/4 3/4-14 BSPP Brass HFSH6-63-BSPP 3/4 3/4-14 BSPP 303 Stainless HFSSH6-63-BSPP 3/4 3/4-14 BSPP 316 Stainless HFH6-63-T12 3/4 1-1/6-12 ORB Steel HFH8-63 1 1-11-1/2 NPTF Steel HFBH8-61 1 1-11-1/2 NPTF Brass HFSH8-63 1 1-11-1/2 NPTF 303 Stainless HFSSH8-63 1 1-11-1/2 NPTF 316 Stainless HFH8-63-BSPP 1 1-11 BSPP Steel HFBH8-61-BSPP 1 1-11 BSPP Brass HFSH8-63-BSPP 1 1-11 BSPP 303 Stainless HFSSH8-63-BSPP 1 1-11 BSPP 316 Stainless HFH8-63-T16 1 1-5/16-12 ORB Steel HFH10-63 1-1/4 1-1/4-11-1/2 NPTF Steel HFBH10-61 1-1/4 1-1/4-11-1/2 NPTF Brass HFSH10-63 1-1/4 1-1/4-11-1/2 NPTF 303 Stainless HFH10-63-BSPP 1-1/4 1-1/4-11 BSPP Steel HFH12-63 1-1/2 1-1/4-11-1/2 NPTF Steel HFBH12-61N 1-1/2 1-1/4-11-1/2 NPTF Brass HFSH12-63 1-1/2 1-1/4-11-1/2 NPTF 303 Stainless HFH12-63-T20 1-1/2 1-5/8-12 ORB Steel HFH12-63N 1-1/2 1-1/2-11-1/2 NPTF Steel HFBH12-61N 1-1/2 1-1/2-11-1/2 NPTF Brass HFSH12-63N 1-1/2 1-1/2-11-1/2 NPTF 303 Stainless HFSSH12-63N 1-1/2 1-1/2-11-1/2 NPTF 316 Stainless HFH12-63-BSPP 1-1/2 1-1/2-11 BSPP Steel HFBH12-61-BSPP 1-1/2 1-1/2-11 BSPP Brass HFSH12-63-BSPP 1-1/2 1-1/2-11 BSPP 303 Stainless HFSSH12-63-BSPP 1-1/2 1-1/2-11 BSPP 316 Stainless HFH12-63-T24 1-1/2 1-7/8-12 ORB Steel HFH2016-63 2-1/2 2-11-1/2 NPTF Steel HFBH2016-61 2-1/2 2-11-1/2 NPTF Brass HFH2020-63 2-1/2 2-1/2-8 NPTF Steel HFH2024-63 2-1/2 3-8 NPTF Steel