Imperial Slotted Countersunk Screws.

What are Imperial Slotted Countersunk Screws?

Imperial Slotted Countersunk Screws, also known as Imperial Flat Head Screws, are a type of machine screw offered within Accu’s wide range of precision engineering components. Being countersunk, these screws insert into pre-drilled holes and are designed to sit flush within their assembly. 

Having a versatile and common drive type, Slotted Screws are easily adjustable without requiring the use of power tools. They are designed to be used alongside our range of Slotted Screwdrivers and can be compatible with iFixit Drive Bit Sets.

Imperial Flat Head Countersunk Screw Materials

Accu can manufacture Imperial Slotted Countersunk Screws in A2 (304) and A4 (316) Stainless Steel. For materials such as Aluminium, Brass and Titanium, quotations can be requested through our Custom Manufacture page.

Fortify your Imperial Slotted Countersunk Screws with Accu’s advanced thread-locking patches. Whether it’s AccuLock Threadlocker for standard security, Anu-Lok 180 for extra resilience, or Precote 80 for elite performance, your fasteners stay locked. Opt for AccuBlack chemical blackening for a stealthy, low-glare aesthetic with a premium edge.

Imperial Slotted Countersunk Screws

Imperial Slotted Countersunk Screws are manufactured in accordance with ANSI B18.6.3, and are available in 0-80 to 12-24 with lengths from 3/32 to 6 inch. 

Metric Slotted Countersunk Screws

Metric Slotted Countersunk Screws are manufactured in accordance with DIN 963, and are available in diameters ranging from M0.5 to M16, and lengths from 2mm up to 160mm.

Bespoke Imperial Slotted Countersunk Screws Manufacture.

High precision, bespoke manufacture of Imperial Slotted Countersunk Screws to customer specification. State of the art facilities specialising in both small batch prototyping and large scale manufacture.