Installation of the NUT-SEAL system protector is accomplished by hand without the use of tools. This protector is designed to work on all standard fasteners(ASA and metric). Installation steps are:

1. Clean the exposed portions of the nut and bolt.
2. Slip the NUT-SEAL protector over the exposed threads and align the nut cover with the hex nut.
3. Screw the barrel onto the bolt until it is hand tight and back off ¼ turn.
4. Fill the protector with anticorrosion grease until the elastomer membrane bugles and grease starts to flow out the bottom of the nut cover.
5. Hand tighten the barrel ¼ turn to seat the protector.

The corrosion resistant greases used are specifically formulated to flow and fill the area between the protector and the fastener. Greases that do not flow well, especially at lower temperatures, leave void spaces where the fastener is unprotected. If the protector system is over pressurized causing the membrane to excessively protrude, simply loosen the protector one or two turns, allow the excess grease to escape between nut surface and seal, then tighten. Over pressuring does not improve performance and may rupture the membrane. If the membrane is ruptured, it can be replaced easily in a few seconds.

Underwater installation steps are essentially the same as top side installation with one important variation. In step three after the protector is tightened securely, back off two turns. Inject grease until an excess amount visibly comes out from the bottom of the nut cover and retighten the protector. Finally, inject additional grease to provide pressure.