M3 x 6 mm Phillips Countersunk Machine Screw, 316 Stainless Steel - CPSA4M3X6
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Made in 316 (A4) stainless steel, the Metric Phillips Head Countersunk (Machine) Screw is a machine-thread screw with a flat countersunk head and a Phillips cross recess. The head sits flush in a countersunk hole.
A4 (316) stainless steel contains molybdenum (about 2 to 3 per cent), which improves its resistance to chlorides. It is the grade normally chosen for coastal, pool, marine and food-processing settings, and it costs more than A2 (304). Metric sizes are written M followed by the nominal thread diameter in millimetres, so M10 is a 10 mm thread.
This listing has 79 variants covering sizes M3 to M10 and lengths 6 mm to 100 mm. Variants are supplied in packs of 50 to 100, depending on size.
Austenitic stainless steel is generally non-magnetic, although cold-worked parts can show weak magnetism. Stainless threads can gall (seize) when tightened under load or at speed. A smear of anti-seize on the thread and a steady tightening speed reduce the risk.
Where this product is used
- Small sizes for enclosures, instruments and light fittings
- Flush fixings in panels, brackets and plates
- Hinges and hardware that need a flat surface
- Architectural work near the coast
- Coastal and marine installations
- Electrical and instrument enclosures
Features
- Phillips cross recess for common screwdrivers
- Choice of 79 sizes, M3 to M10
- Metric thread sizes match the nuts, bolts and tapped holes in most Australian-supplied equipment
- A4 (316) stainless steel with molybdenum, for coastal and chloride-exposed settings
- Lengths from 6 mm to 100 mm
- Countersunk head sits flush in a countersunk hole
Key specifications
| Specification | Detail |
|---|---|
| Product | Metric Phillips Head Countersunk (Machine) Screw |
| Type | Machine-thread screw with a flat countersunk head and a Phillips cross recess |
| Material | A4 (316) stainless steel |
| Key features | Countersunk head sits flush in a countersunk hole; Phillips cross recess for common screwdrivers |
| Environment | Coastal, marine, pool and food-processing use |
| Fitting tip | Use anti-seize on the thread to reduce galling |
| Head type | Countersunk |
| Drive | Phillips |
| Thread system | Metric |
| Lengths | 6 mm to 100 mm |
| Variants | 79 |
| Pack size | 50 to 100, by size |
| Magnetic response | Generally non-magnetic (austenitic); cold-worked parts can show weak magnetism |
| Sizes | M3 to M10 |
Selecting the right option
The material needs a countersink cut to suit the head. Use a correctly sized Phillips driver and avoid power drivers at speed. A drop of anti-seize on the thread helps prevent galling. Where chlorides are not a concern, the A2 (304) version costs less: Metric Phillips Head Countersunk (Machine) Screw - 304 Stainless Steel.
Related products
Other versions in this range: BSW Phillips Head Countersunk (Machine) Screw - 304 Stainless Steel and BSW Phillips Head Countersunk (Machine) Screw - 316 Stainless Steel. Matching products: Metric Standard Hex Nut - 316 Stainless Steel and Flat Round Washer DIN125A Stainless Steel.
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Metric Phillips Head Countersunk (Machine) Screw - 316 Stainless Steel: M3 / 6 mm
SKU: A0072779 | Model: CPSA4M3X6
CPSA4M3X6: M3 x 6 mm Phillips countersunk machine screw, 316 Stainless Steel. Sold in a box of 100. Suits flush fixings in panels, brackets and plates.