Groco Bronze Thru-Hull Fitting

The GROCO Thru-Hull Fitting with Nut is fabricated out of C83600 bronze. It has NPS threads (National Pipe Straight Thread) and includes the nut for installation. Installation may require the threaded portion to be cut to the proper length-based hull and butt block thickness. Consider the thread depth when using a seacock. Sealant is recommended between the hull and thru-hull flange. Includes lock nut with bonding screw and comes with hex nut. UL Listed 647-B. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality at an affordable cost. Not to be used in potable water systems. Features: • NPSM / NPT combination thread • C83600 Bronze • Sizes from 1/2″ to 5″ • UL Listed 647B • Available with (-W) or without nut (-L) • BSPP and Stainless Steel models available Size: 1″; Flange Diameter: 2.32″; Shank Length: 2.85″; Flange Thickness: 0.30″ Size: 1.5″; Flange Diameter: 2.89″; Shank Length: 3.15″; Flange Thickness: 0.30″ Size: 2″; Flange Diameter: 3.33″; Shank Length: 3.9″; Flange Thickness: 0.30″