M12 x 20mm Socket Countersunk Screws (ISO 10642) - Marine Stainless Steel (A4) Description
The M12 x 20mm Socket Countersunk Screws (ISO 10642) - Marine Stainless Steel (A4) has the following features:
- M12 (12mm) Thread Size (T)
- 4.3mm Hexagon Depth (P)
- ISO 10642 Manufacturing Standard
- 20mm Overall Length (L)
- Marine Stainless Steel (A4) Material
- Marine Stainless Steel (A4) Material Specification
- 1.75mm Screw Thread Pitch
- Natural Finish
- +/- 0.13mm General Tolerance
- Metric Metric or Imperial?
- 90 degrees Countersunk Angle (CA)
- 23.12mm Head Diameter (Min) (D)
- 26.88mm Head Diameter (Max) (D)
- 7.44mm Countersunk Length (Max) (H)
- 8mm Hexagon Across Flats (J)
Discover more about the Metric Socket Countersunk Screws range.
Countersunk Socket Head Screws feature a countersunk head type, which allows them to sit flush with their target housing. The socket head of these screws makes them ideal for use alongside Accu’s Hex Drive Bits or Allen Keys & Wrenches.
Countersunk Screws are designed to be used alongside pre-drilled countersunk recesses, which can be made with the use of angle cutters called Countersinks.
Metric Socket Countersunk Screw Kits
Accu ProKits, our high quality range of fastener kits, feature Socket Countersunk Screw Kits, available in A2 Stainless Steel and Marine Stainless Steel.
With screw sizes M2, M2.5 & M3 (Micro) and M4, M5 & M6 (Small) as screw kit options, engineers and DIYers alike can be ready for their next project with our ultimate fastener kits.
Countersunk Captive Fasteners
Captive screw variants of Accu's Metric Countersunk Screws are available in A2 and A4 Stainless Steel, with other materials such as thermoplastic PEEK available on request.
Our range of Socket Countersunk Captive Screws are designed to be used in conjunction with Captive Washers to prevent the screws from falling out of housing assemblies and conform to EU Safety regulations.
Countersunk Socket Head Screws can be manufactured from a range of materials, including A2, A4 and Bumax Stainless Steel options as standard.
Accu also supplies Socket Countersunk Screws in 10.9 and 12.9 High Tensile Steel, with materials such as Titanium, Aluminium and PEEK available through our custom manufacture service.
Chemical Blackening is available on Stainless Steel screws, with Thread Locking Patches and various other finishes also available on request.
Security Screw Variant
For applications requiring a tamper-proof drive, this component is also available in a security variant, which can be found in Accu's Security Socket Countersunk Screws range.
Accu’s Metric Socket Countersunk Screws are available in thread sizes ranging from M2 to M24, and lengths from 3mm up to 200mm.
Imperial Countersunk Socket Screws are also available in diameters from #0 to 7/8 inch. Lengths are available from 1/8 inch up to 10 inches.
Minimum Thread Length
In accordance with DIN standard 7991, Accu's Socket Countersunk Screws are manufactured to a minimum specified thread length. Please contact us before placing your order if this dimension is critical to your application.