Technical Information

DMP is proud to carry these product lines:

XRP  -  Click here to view our XRP Products | Click here to download the XRP Catalog

ARP -  Click here to view our ARP Products | Click here to download the ARP Catalog

Durham - Click here to view our Durham Products | Click here to dowload the Durham Catalog

 Auveco - Click here to view our Auveco Products | Click here to download the Auveco Catalog 

Fragola Performance Systems - Click here to download the Fragola Catalog

FK Bearings - Click here to download the FK bearings Catalog

There are many different types of locking nuts available. Most of the time you use whatever is lying around in bins or garage drawers due to convenience. The problem is that there are different locking nuts for different fastening needs.

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We all have seen chrome bolts or grade 8 yellow finish bolts or maybe a bluish silver bolt? What do the colors mean?
The different colors or finishes have nothing to do with the grade, they are merely for corrosion protection or cosmetic appearance. When you typically purchase fasteners such as bolts, nuts and washers the grade of the bolt has certain plating applied to them.

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What do those slashes and numbers generally mean on a hex bolt?
It’s very simple, on clear zinc plated bolts you will notice 3 hash markings on the head this represents grade 5 which carries a tensile strength of 120,000 psi.

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