M3 x 6 mm Countersunk Socket Screw, 316 Stainless Steel - CCSA4M3X6
The price shown is for the box.
Available
The Metric Countersunk Socket Head Screw, 316 Stainless Steel is a flat countersunk head screw driven by a hex key. The conical head sits flush in a countersunk hole for a flat finish.
The range runs to 98 variants, covering sizes M3 to M16 and lengths 6 mm to 100 mm. Pack quantities depend on size: packs of 25 to 100.
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.
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, plates and brackets
- Surfaces where something slides or sits over the screw head
- Food, beverage and marine fittings
- Swimming pool and spa equipment
- Larger sizes for frames, plant and structural fixings
Features
- Conical head sits flush in a countersunk hole
- A4 (316) stainless steel with molybdenum, for coastal and chloride-exposed settings
- Metric thread sizes match the nuts, bolts and tapped holes in most Australian-supplied equipment
- Hex key drive
- Pack quantities to suit trade and bulk buying: packs of 25 to 100
- Range covers M3 to M16 in 98 variants
Key specifications
| Specification | Detail |
|---|---|
| Product | Metric Countersunk Socket Head Screw |
| Type | Flat countersunk head screw driven by a hex key |
| Material | A4 (316) stainless steel |
| Key features | Conical head sits flush in a countersunk hole; Hex key drive |
| Head type | Countersunk |
| Drive | Hex socket |
| Typical environment | Coastal, marine, pool and food-processing use |
| Thread system | Metric |
| Number of variants | 98 |
| Pack quantity | 25 to 100, by size |
| Fitting tip | Use anti-seize on the thread to reduce galling |
| Magnetic response | Generally non-magnetic (austenitic); cold-worked parts can show weak magnetism |
| Lengths | 6 mm to 100 mm |
| Sizes | M3 to M16 |
Selecting the right option
The material needs a countersink cut to suit the head angle and depth. Use the correct hex key, and use anti-seize on the thread, because stainless threads can gall. Where chlorides are not a concern, the A2 (304) version costs less: Metric Countersunk Socket Head Screw - 304 Stainless Steel.
Related products
Also available: Countersunk Socket Screw M4 x 45mm - Stainless Steel and Countersunk Socket Screw, A4 316 Stainless Steel, DIN 7991. Often used with: Flat Round Washer DIN125A Stainless Steel.
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Metric Countersunk Socket Head Screw - 316 Stainless Steel: M3 / 6 mm
SKU: A0072422 | Model: CCSA4M3X6
CCSA4M3X6: M3 x 6 mm countersunk socket screw, 316 Stainless Steel. Sold in a box of 100. Suits flush fixings in panels, plates and brackets.