Larsen Supply Co. 697340 Tank to Bowl Bolt Kit Brass

Product Description

The LARSEN SUPPLY CO., INC. 697340 is a tank-to-bowl bolt kit designed for securing toilet tanks to bowls during installation or replacement service. The kit includes three 5/16-inch x 3-inch brass bolts, a sponge rubber gasket, six brass washers, six rubber washers, and three hex wing nuts. The sponge rubber gasket is engineered to fit over both round and hex-shaped flush valve nuts, making it adaptable across common toilet configurations. Plumbers and service techs use this kit when replacing a toilet, reseating a tank, or addressing a leaking tank-to-bowl connection.

This bolt kit is suited for residential and light commercial toilet installations. It applies to standard two-piece toilet assemblies where the tank mounts directly to the bowl. The included hardware provides a complete fastener set so the installer does not need to source individual components separately. The carded retail packaging makes it convenient for both shop inventory and service van stock.

Key Features

• Includes 3 brass bolts at 5/16 inch x 3 inches each for corrosion resistance
• Sponge rubber gasket fits over both round and hex-shaped flush valve nuts
• Six brass washers and six rubber washers included for a complete seal
• Three hex wing nuts allow hand-tightening with option for tool finishing
• Complete kit eliminates the need to source individual fasteners separately
• Carded packaging for easy retail or supply house display

Compatibility

Designed as an OEM-style replacement hardware kit for standard two-piece residential and light commercial toilet assemblies with conventional tank-to-bowl bolt patterns.

Installation Notes

Installation is typically performed by a licensed plumber or experienced tradesperson. Shut off the water supply and flush the tank to remove standing water before removing or replacing tank hardware. Hand-tighten the wing nuts evenly in an alternating pattern to seat the gasket uniformly, then snug with a wrench — avoid overtightening brass bolts, as cracking the tank or bowl is a common failure. Follow local plumbing codes as applicable under the IPC or local amendments.