M4 x 0.70p Metric Coarse Chrome 1 Piece Dome Nuts Low Tensile DIN 1587
$6.00
In stock
SKU
41D41PCR
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- Hex Dome Acorn nuts can be used alone or as a cap for a hex or jam nut, dome nuts serve a decorative purpose by concealing the threaded end of a fastener or acting as a cover for protruding, perhaps sharp threads. Some types are manufactured in two pieces and pressed together; others are milled from a single piece of metal. Aside from a possible slight difference in dimensions, both types of nuts are otherwise the same
- Also known as: Crown Nut, Blind Nut, Dome Cap Nut, Hex Cap Nuts, Acorn Nuts
- Material / Coating: Chrome, short for chromium, refers to the plating. Chrome plating is overlaid on a metal core. It consists completely of chromium and is not an alloy. Chrome is typically polished and very shiny, although the satin and brushed varieties can be more matte. It’s used in both decorative and industrial purposes because it is corrosion-resistant and has a high level of lustre. It’s also a very light metal. The difference between chrome and stainless steel is in their makeup. Stainless steel is a metal alloy without plating, containing nickel and at least 10.5% chromium to make it more durableGalling: can occur when excessive pressure is used to tighten a nut onto a thread, common with stainless fasteners but can also be an issue with other materials. Fasteners with damaged or fine threads are particularly prone to galling.
Some suggestions to help prevent thread galling:
Tightening the nut more slowly without excessive pressure, will frequently reduce or sometimes solve completely, the problem. As the installation RPM speed increases, the heat generated with friction during tightening escalates the chances of thread galling.
Reduce the friction by applying a suitable lubricant to the thread frequently eliminates thread galling. Typical lubricants are chloride-paraffine, molykoat lacquer, molybdenum disulphide, high pressure oil, graphite, mica, or talc, some assemblies where there is extreme pressure, corrosion resistant grease or waxes may also be effective - Thread Pitch (Metric): is the distance between the peaks of two threads along a screw, bolt, nut or fastener expressed in millimetres (mm). Used when referring to Metric parts. For example, a thread pitch of 1.50mm means that the distance between one thread and the next is 1.50mm
- Measurements: Every effort has been made to ensure all measurements on our site are accurate and to the relevant standard, they should only be used as a guide. If you see a problem with our specifications please contact us
- Dimensions: Our stock is sourced from various suppliers, therefore differences may exist between batches such as height, width, visible stamped markings, appearance or actual finish
- Photos: are of the product but may not be the actual diameter, height, width, length you may require, always refer to the size in the description and additional specifications data provided prior to ordering
- Updating our site: If you see any problems with any of our specifications or you require additional information please contact us
- Disclaimer: Technical data and specifications were researched and compiled from numerous industry sources for the sole purpose of providing basic information. All material is advisory only and its use by anyone is entirely voluntary. Reliance on it for any purpose by anyone is at the sole risk of that person, and Bolt and Nut Australia is not responsible for any loss, claim or damages arising therefrom. In developing this information, Bolt and Nut Australia has made a determined effort to present it accurately
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| System of Measurement | Metric |
|---|---|
| Product | Dome Acorn 1 Piece Nut |
| Size | M4 (4mm) |
| Size & Thread Pitch | M4 x 0.70p Coarse |
| Thread Pitch | 0.70mm |
| Thread Direction | Right Hand |
| Thread Type | Metric - Coarse |
| Corrosion Protection Level | Very Good |
| Class / Grade | Low Tensile Class 5 |
| Material | Carbon Steel |
| Finish | Chrome Plated |
| Across Flats (af) | 6.78 - 7.00mm |
| Across Corners (ac) | 7.66 - 8.08mm |
| Dome Head Width (c) | 6.50mm |
| Nut Height Overall (b) | 8.00mm |
| Hex Height (h) | 3.20mm |
| Internal Nut Depth (p) | 5.25mm |
| Spanner Size | 7mm |
| Closest size in imperial | 5/32" |
| Standard Made To | DIN1587 |
| Brand | Hobson Engineering |
| Alternative Brands | Hitech Fasteners |