ITEM: 9/16 Tap Shank Diam, 0.421 Tap Square Size, 1/4 Pipe Tap, PARLEC. MANUFACTURER: PARLEC. BRAND: Parlec. MANUFACTURER PART: 77173025. 9/16 Tap Shank Diam, 0.421 Tap Square Size, 1/4 Pipe Tap, 3.7 Projection, 11/4 Shank OD, Series Numertap 770 (MOQ1, Pkg Qty1)CATEGORIES: Maintenance, Repair and Operational (MRO) Supplies. Tapping Heads & Holders. Tapping Adapters & Adapter Sets. N/A. TOTAL RECYCLED CONTENT: 10.00%. POSTCONSUMER RECYCLED CONTENT: 1.00%. KEYWORDS: ParlecTapping Heads & HoldersTapping Adapters & Adapter SetsTapping AdaptersN/A.