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PrecisionGeek M5 x 10mm Flat Knurled Thumb Screws (Set of 5) - Stainless Steel

£9.9£99Clearance
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About this deal

Most thumb screws come in either long or very short lengths, depending on the application where they are needed. To choose the best thumb screw for the task, it is important to bear in mind certain characteristics such as length, diameter, and thread size. Thumb screw thread gauge and diameter are typically stated in metric units in the UK. Elsewhere, measurements given in inch sizes may be more widespread. Common sizes that fit the threaded holes in a wide variety of everyday UK devices, panels and covers include M6 thumb screws, M4 knurled thumb screws, M8 thumb screws, and M12 thumb screws. Knurled Knobs, or Thumb Knobs easily press fit on to screws, creating a small knob for clamping or securing an application. These Thumb Screw Knobs, also known as Thumb Bolts, can be used with any length of screw. The knurled edge is easily gripped for tightening and loosening. Thumb screws are best used in applications where the fastener doesn't need to be torqued excessively tightly.

M5 x 10mm Knurled Thumb Screws (DIN 464) - Accu

One of the main reasons why thumb screws are often chosen over traditional screws is that certain parts and assemblies do not leave much room for using hand tools. If a panel or component needs to be fastened down reasonably tightly, but access for a screwdriver or wrench is limited, manufacturers will often choose to include a thumb screw instead. A second common scenario where thumb screws are often the best choice is where regular and repeated loosening or tightening of the fastener will be necessary. This is often the case for things like battery covers, enclosure doors and electrical safety panels. Knurled thumb screws are commonly chosen because they give the user a better grip on the head of the fastener when installing by hand.Thumb screws (sometimes written as thumbscrews) are multipurpose fasteners designed to be tightened and loosened by hand, rather than needing tools like screwdrivers or wrenches for installation. They have a wide range of useful applications, especially in parts, materials and builds that do not easily support the use of manual or power tools. This is often due to space restrictions. Knurled bolts and screws of this type are so-called because of the knurling pattern - a series of machined ridges or bumps - found around the screw head. Knurling is a widespread manufacturing technique for improving grip or torque force on a huge array of hand-installed components and fasteners. Small thumb screws can be as short as 4mm or less from the shoulder to the end of the threading, while long thumb screws commonly extend to around 25-30mm (1 inch) and beyond. It is unusual to find very long thumb screws for most day-to-day fastening jobs. This tends to imply that the product would need to be more rigid (less range of deflection) and have greater tensile strength than most of these relatively small fasteners tend to offer. Examples of typical applications include instrument panels, case lids, battery compartments and enclosure windows. A thumb knob may also be listed as a star knob, depending on the precise shape of the head designed for gripping by hand. Knurled head thumb screws are one of the most common applications of this technique, which can be found on many types of stainless steel or nylon nuts, screws and bolts. The pattern of bumps, ridges or notches allows for much-improved friction between fingers and the otherwise smooth edges of the thumb screw. Thumb Screw Knobs

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