These components also feature a low-profile pan head, which has rounded edges for safety and aesthetics. For heavy duty applications, such as structuralprojects, Heavy Duty Hex Nuts are available from Accu in both metric and imperial sizes. Metric Hex Nut Materials Metric Fine Pitch Hexagon Nuts are available from our online store for applications which require finer adjustments and greater resistance to loosening under vibration. Imperial Hexagon Nuts M1.6 screw and bolt sizes for the more common ones we deal with. This will give information about the maximum screw head heights and head diameters as well as the driver size needed to install or remove them. If unfamiliar with DIN and ISO numbers, they can be thought of as exact fastener names for each specific screw and are usually given as either DIN or ISO (eg. DIN 912 or ISO 7380).

All Full Thread Hexagon Headed Bolts are precision rolled to achieve general tolerances of +/-0.13mm. These components feature a full thread which runs the entire length of the bolt's shaft, and are designed for use alongside Accu's Hexagon Nuts ranges. Fully Threaded Hexagon Bolt Materials A full range of imperial and metric sizes are available, and standard components range from M2 up to M36 in diameter. Lengths from 3.00mm up to 300.00mm are also available. What is The Difference Between a Screw and a Bolt?.The ingenuity of slotted countersunk flat-head screws lies in their ability to align perfectly with the material's surface. When driven into a countersunk hole, the angled sides of the screw head align with the sloped sides of the hole. This allows the top of the screw to sit flush with the surface, offering a neat finish and reducing the risk of snags or abrasions. Washers are also often used with nuts and bolts to help distribute the load of the fasteners, for spacing or protecting the surfaces of the mating components.

Hexagon Nuts can be manufactured in alternative material types such as Aluminium, Brass, Phosphor Bronze and Titanium on request. Metric Hexagon Nuts Material selection for countersunk slotted screws is pivotal, as it directly influences the performance and suitability of the screw for the task at hand. Accu’s range includes Brass for its machining ease, A2 Stainless Steel for general-purpose applications, A4 Stainless Steel for environments prone to corrosion, Nylon for electrical insulation, and PVDF and Polypropylene for superior chemical resistance. The chosen material ensures the screw’s integrity and functionality within its specific application environment. Machine screws – designed to be used with a tapped hole or interior nut thread. Available with all common head types including pan, flat, countersunk and truss. Hexagon Nuts from Accu are manufactured in a wide range of materials. Metal Hex Nuts available include A1, A2, A4 Stainless Steel, with High Tensile options in Duplex and Bumax Stainless Steel. Mild Steel (Grades 6, 8, 10 and 12) is also available with either Hot Dip Galvanised or Zinc Plated finishes.

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Accu can also offer Vented Cap Screws , which are a specially modified variant of this component that allow the release of gases and pressure through a bore that runs through the centre of the screw. Materials These components feature a coarse metric thread pitch, which makes them more resistant to cross threading and stripping.

Fully Threaded Hexagon Bolts are designed for use in heavy-duty fastening applications, and feature a hexagonal head for use with a standard spanner. As their name suggests, these fasteners are threaded all the way up to the head of the bolt, making them ideal for installation into pre-threaded holes. Plain Hexagon Bolts , with a reinforced unthreaded shaft section, are also available. This type of metric nut is also commonly referred to as a Full Nut or Finished Hex Nut, and is typically fastened using either a wrench (spanner) or a ratchet. Metric Full Thread Hexagon Headed Bolts manufactured according to DIN 933, and are available in diameters ranging from M2 up to M36. Lengths of between 3mm and 200mm are also available as standard. Non-Standard sizes are available on request. Imperial Fully Threaded Hexagon Bolts Metric Phillips Pan Head Machine Screws feature a widely used Phillips drive, and are designed for use alongside Accu's Phillips Head Screwdriversand Phillips Head Drive Bits. For more information on the Phillips drive, see our article, What is The Difference Between Phillips and Pozi Drives? Self tapping screws – have a pointed tapered end that allows them to be drilled into any surface. Available in both Pozidriv and cross drive types.Our slotted countersunk head screws, manufactured to DIN 963, come in sizes ranging from the delicate M0.5, suitable for intricate assemblies such as watchmaking, up to the robust M16, for larger-scale engineering projects. Lengthwise, our range spans from the minute 2mm all the way to the longer 160mm. Accu provides a comprehensive selection of these screws in both metric and imperial sizes , catering to a vast array of industrial and commercial applications. FAQs Q: Why are countersunk slotted screws ideal for my project? The choice of a slotted drive type for these aptly named slotted countersunk machine screws is deliberate, providing a classic, straightforward approach to driving the screw while allowing for a satisfactory level of torque application without the need for specialized tools. This traditional drive type is favoured for its simplicity and the ease with which it can be aligned, ensuring a secure and precise installation. What Material Countersunk Slotted Screws Are Made From Accu's range of Cap Screws are manufactured in accordance with industry standards, such as DIN 912 and ISO 4762. A: Yes, slotted countersunk screws are offered in A4 Marine Grade Stainless Steel and Nylon, which boast excellent outdoor durability due to their resistance to corrosion and environmental conditions. Q: What tool should I use to install slotted countersunk screws? Phillips Pan Head Machine Screws are manufactured in accordance with DIN 7985H, and are available in metric thread sizes of between M1.2 and M10, and lengths from 1.5mm up to 100mm. Imperial Phillips Pan Head Screws