Black Oxide Steel Fasteners On Aluminum Sheet

Screws treated with a high quality coating consisting of zinc and aluminum.

Black oxide steel fasteners on aluminum sheet.

The type ab point has the conical tip of a type a point with the finer spaced threads of a type b point. As is the case with carbon steel screws a plated stainless steel screw is less likely to corrode aluminum. Black oxide fasteners made from stainless steel usually grades 18 8 or 304 have been chemically treated to alter certain qualities of the material most notably the color. Black oxide fasteners black oxide screws bolts nuts and washers in stainless steel.

Black oxide stainless steel screws are sold in quantities from the hundreds to the thousands. The black oxide is applied to 18 8 and a2 stainless fasteners but can be applied to any grade of stainless or alloy. The type a point has a conical tip and spaced threads. Steel is often used in applications where strength is the primary consideration.

However stainless steel is reactive with aluminum and when a stainless steel screw is in contact with an aluminum base metal the aluminum is likely to corrode. Black oxide adds a mild layer of corrosion and abrasion resistance to fasteners. We ve been distributing black oxide fasteners and more since 1947 and we supply fasteners in bulk and in custom packaging and. It will depend on if the fastener is damaged or marred the type of metal with the black oxide treatment and environmental conditions.

Customers can therefore conveniently buy enough black oxide nuts and bolts to support their businesses and processes. Steel sheet metal screw black oxide finish 82 degrees flat head phillips drive type ab 6 20 thread size 3 8 length pack of 100 4 3 out of 5 stars 10 misc. The wax is invisible but adds a slight amount of additional corrosion resistance to the already resistant stainless steel. We stock over 20 million socket head cap screws black oxide miniature screws metric screws aluminum screws stainless steel fasteners alloy steel fasteners zinc plated fasteners in metric or standard sizes.

Product description the black oxide finish steel sheet metal screw with truss head and phillips drive has a type ab point for forming threads in thin metals between 0 015 and 0 050 thick and resin impregnated plywood. The black oxide finish steel sheet metal screw with pan head and phillips drive has a type a point for forming threads in thin metals between 0 015 and 0 050 thick and resin impregnated plywood. If you use aluminum to attach a large sheet of stainless steel the aluminum life will be dramatically shortened. Like any material black oxide treated fasteners can rust in the right environments.

Zinc plated steel and black oxide are commonly used examples. Will black oxide bolts rust. Albany county fasteners recommends the use of neoprene epdm or bonding washers in between stainless fasteners and aluminum materials the neoprene forms a barrier in.