In the case of machine or self tapping screws this relates to how much turning force is required to move an object. With screws this is the turning force that a screwdriver needs to rotate the axis of a screw.

A self tapper is a screw that can "tap" itself into metal via a pre-drilled hole. This is done by gradually tightening and relaxing the screw into the hole allowing the hardened thread to create a threaded hole. The word torque is the measure of rotational force. Torque comes in many different forms. Whether you are trying to undo a lid with your hands or tightening a screw with a screwdriver, you are dealing with the turning force or twisting action that is ‘torque’.The clutch head removal tool had two ultra-tough tungsten tips. When brute force is used these tips can be driven into the comparatively soft A2 stainless steel screw head. Making two divot holes, the screw may then be turned to remove it. That said, this is not an exact science and certainly not the easy option! It will still take a lot of effort. Historically, the most popular screw has long been the snake eye screw or bolt. This is principally because it is the most well known to the novice and because of its aesthetic appeal. Of course when it comes to looks this is a matter of taste, but this is certainly borne out over many conversations with our customers. Where snake eye screws fall down is when they are required for applications where they must be excessively tightened. With a relatively low torque threshold, these screws are not ideal in this sort of instance. Differentiated from machine screws by having a point at the end, these screws can also used to screw into wood or a wall plug into a wall. Pin hex and pin torx screws both have a pin in the middle so normal hexagonal allen keys, Torx bits or flat blade screwdrivers cannot be inserted. Only a special driver insert or tool with a recess for the pin to fit into will remove the screw or bolt. Using SSP’s patented head design we can make a screw head and driver insert just for you. This screw will be unique from any other screw previously made and the design will be registered to ensure this screw is never made again for anyone but you. Taking up to 8 weeks to produce, customers of this product are often those that are looking to safeguard high value goods on display - like jewellery, mobile phones, tablets or computers.

In terms of two way screws, the most secure screws are those that have a unique head and driver insert. SSP’s U-nique range of fixings take 6 week to manufacture. Once made, we will register the design so no one else will receive the same driver insert or screw head from us.The other benefits of these bolts is that they can be used anywhere – on land or sea. Being manufactured A4 stainless steel these can be used almost anywhere, including marine applications, within food processing and distribution, on or around medical equipment and in coastal towns and villages. The most common of these is the Shear Nut (a permanent fixing). Shear Nuts are available in three different materials - Galvanised Steel, A2 Stainless Steel and BZP. They're attached using a standard wrench or spanner. When the nut gets to a certain level of tightness, the hex at the top of the Shear Nut will simply break away, leaving a cylindrical dome that cannot be removed without a great deal of difficulty. Similar to Snake Eye screws, the only downside of the Shear Nut is the level of torque that this nut can be tightened to.