Welcome To Mapeco Products

Mapeco Products, a division of Walz & Krenzer, Inc., is a U.S. owned small business that has provided hydraulically actuated fasteners to the U.S. marine market since the mid 1960's. Since introducing the Pilgrim Nut to the U.S. marine market in 1966, Mapeco Products has become an industry expert in hydraulically actuated fasteners used for mounting and dismounting propeller, rudder, and shafting systems.

Our engineers provide pre-determined installation and removal calculations for a guaranteed repeatable fit. Detailed analysis is available to aid in the design of propulsion systems.

- Reduced Outage Time - fast & easy installation and remova
- Precise & repeatable loading
- Approved by all leading classification societies
- Low maintenance costs as components are reusable

Pilgrim Nuts

The Pilgrim Nut was introduced to the U.S. & Canadian marine markets by Mapeco Products in 1966. It has become the industry standard for providing axial force to assemble and disassemble propeller, tapered shaft, & rudder stock connections.


Hydraulic Bolts

Mapeco Products offers three types of hydraulically actuated bolts; Pilgrim Radial Fit Bolts, Morgrip Bolts, and Pilgrim Bolts. All provide fast, cost-effective, repeatable, and trouble-free installation and removal.

Keyless Shaft Couplings

Both flanged and straight couplings are available to meet the requirements of almost any shipboard application. The fundamental concept of the keyless shaft coupling is to create a large frictional grip between the coupling and the shaft by "shrinking' the coupling ID to create an interference fit with the shaft.


Technical Support, Hydraulic Pumps and Accessories

High pressure air & hydraulic pumps, ancillary equipment, and spare parts are kept in stock for immediate supply.