Fasteners
We use mostly 12.9 grade (176,000 psi tensile strength) hardened steel socket head cap screws for our slider to frame attachments. Most socket head cap screws of this type are supplied for use as flywheel or connecting rod bolts.  Our choice of bolts for this mounting configuration is so that they will bend instead of snapping when subjected to excessive stresses. They are almost always supplied in black finish but we take the extra step of having them plated for better corrosion resistance. This may affect their exact thread tolerances in some cases. Another thing we've been asked this a lot: "Why socket heads instead of standard hex headed bolts?" The answer is simple. A bolt fits into a hole in the slider. To tighten that bolt you will need a hex drive or a socket drive. If you use a socket because it's a hex head bolt, the hole in the slider needs to be bigger to accommodate the size of the socket, requiring the slider puck to either be bigger overall, or thinner walled. Hex drives are smaller profiled and therefore need a much smaller hole in the slider for the drive to be inserted. Socket head bolts are actually much harder to come by, especially in metric and non-standard pitch configurations. They are considerably more expensive, but we feel that they are a worthwhile expense. We do not use hex head screws, only socket heads and they are all either electroplated or stainless steel. Never black oxide coated because they will rust days after you install them.

We also use stainless steel socket head cap screws for attaching sliders to brackets (in street no cut model frame sliders kits). Usually they are of Grade A2 (304) stainless steel with a tensile strength of about 101,000 psi. This type of fastener was chosen as they are meant to snap off on excessive impact before transferring that excessive force to the brackets which would amplify the forces to the mounting points on the frame.

Washers:  We only use 304 grade stainless steel in all our slider kits to reduce metal to metal corrosion and binding.

Brackets
All our brackets have usually undergone an extended period of consideration and design work to determine the best possible location for them and the best design that will do it's job safely.  Anyone can make a bracket to offset a slider, we only do it when it makes sense and is safe to do so.  That is why we sometimes do not offer a 'no cut' kit that uses a bracket for some models of bikes. Some bikes just do not alllow the safe and sensible use of them.

All our brackets are CNC machined from T6 alloy. This material offers the optimum weight to strength to elasticity ratio we could find in an aluminum alloy.  We never use stainless steel or steel castings or welded steel brackets as they are much too strong.  Cheap to manufacture but not ideal for their intended use.The majority of the components on your bike including the frame are made of aluminum. Using a steel bracket to attach a slider to a frame will cause too much of the impact forces to to transferred to the frame. Especially when the bracket's offset nature causes the forces to be amplified. All our brackets also have built in braces in their design to prevent rotation during impact events and to also help distribute those stresses over a larger area of the frame.

It is easy to be seduced by cheaper prices or or poor imitations so make sure that you're not short changing yourself in the long run.