Marine Machining & Manufacturing

Since 1940, Marine Machining & Manufacturing has been the industry leader in boat shafting, setting the bar for quality and durability. Almost all boat shafting service requirements are met by them,...

A castellated nut, sometimes known as a castle nut, has three notches on one end, giving it the appearance of crenelated castle battlements. Castellated nuts are a sort of vibration-resistant...

The Brown Jam Nut Set is a locknut to prevent vibration from loosening a bolted joint and jammed against a standard nut to lock the two in place. The jam nuts or half nuts are low-profile hex nuts...

Jam nuts are smaller than conventional nuts, about half the size. These nuts are both fitted onto the bolt and then tightened against each other in practice. There are several reasons why you would...

Quickly remove or replace your prop with this 1/2-13 Jam Nuts Set by Marine Machining. They stand up to extreme conditions and resist vibration to secure the propeller. The material used in the...

Jam nuts are smaller than average nuts, roughly half the size. In actual use, these nuts are well-tightened against one another after being screwed onto the bolt. You might utilize jam nuts for...

This jam nut 5/8-11may be used to secure screws and bolts with a broad head range from 5/8 to 11 with a wrench 15/16". It is composed of alloy steel, which gives a high degree of durability, and it...

Brass construction

Remove your inboard boat propeller quickly and easily using the Marine Machining & Manufacturing Prop Knocker. It is the facile propeller removal tool on the market. Directly thread it onto the prop...

Smoothly created with harmonic style, this puller allows you to easily free Props for repair or replacement. Built and weathered for threads onto the shaft, excellent for splined shafts. Shop now!...

Wondering about the best way to get that prop off the shaft? Easy. The new and improved Prop Knocker for 1 ¼” (PK78) is right in front of you. Engineered and crafted by a trusted brand - top-quality...

The PROP KNOCKER FOR 1 3/4" (PK114) from Marine Machining and Manufacturing is a high-quality Prop Knocker for inboard boats and is the easiest propeller removal tool available. Simply thread it on...