Whenever you put time or expensive lumber into a clear finished project it doesn t make sense to use anything but stainless steel.
Ceramic coated bolts.
Length is measured from under the head.
But stainless steel is well worth it if you don t want to see any rust or stain marks on your project.
Star flat head wood deck screws 1 lb pack.
The coating gives 3000 hours minimum of neutral salt spray test as per astm b117 which ensures fasteners to provide the users with the best protection under severe usage conditions.
Hillman 1 2 in x 6 in black ceramic hex head exterior lag screws.
Certifications iso 9001 2015 certified pressure equipment directive ped 2014 68 ec certified merkblatt ad 2000 w2 w7 w10 approved asme astm api ams aisi sae compliance certification 2019 torqbolt made with in india.
For pricing and availability.
Ortech supplies ceramic screws in both alumina and high strength zirconia.
The zinc plating prevents the underlying steel from coming into contact with the aluminum and the risk of corrosion of the aluminum is reduced significantly.
Galvanized steel screws however are plated with a corrosion resistant coating usually consisting of zinc that is not nearly as reactive with aluminum.
Some have an especially slippery top coat to make them easier to drive into wood.
They are nonconductive and highly resistant to corrosive gases.
Also most threaded fasteners are heat treated to increase their strength but when they re subsequently hot dip galvanized the high temperature around 860 f of the molten zinc in the.
Ceramic screws won t melt rust seize or become brittle even at extreme temperatures.
Hillman 5 8 in x 4 in gray hot dipped galvanized hex head exterior lag screws.
Stock ceramic fasteners from ceramco are the solution for applications in which metal alloy or plastic fasteners fail or simply do not possess the properties demanded by the environment in which they must exist.
To ensure compatibility use these screws with ceramic nuts.
Company founded in 1950 al rashed group operating through a network of commercial industrial divisions the group has evolved a special role for itself in.
Screws made of this material may cost twice as much as coated steel fasteners.
Hillman 5 16 in x 2 in gray hot dipped galvanized hex head.
In stock we have alumina and zirconia ceramic screws which have matching ceramic washers and ceramic nuts.
For technical drawings and 3 d models click on a part number.
More product details close 9 x 3 in.