M8 x 1.25p Metric Coarse Plain Black Uncoated Class 14.9 Cup Point Socket (4mm Key) Set Screws Grub DIN 916
$5.00
In stock
SKU
31SE8P_configurable
- Socket Set Screws Grub are used to secure parts like shafts, pulleys, gears and have become popular in the furniture assembly industry. Socket Set Screws are a headless fastener with an internal hex drive. They are generally used to secure an object against or within another object (not usually using a Nut). They can be used to secure parts like, shafts, pulleys, gears and have become popular in the furniture assembly industry because of their flush finish
- Also known as: Grub Screws, Hex Socket Set Screws
- Material / Coating: Black or plain finish is unfinished (bare steel) has no actual protective coating. You will not have any corrosion resistance and the product will rust over time. The term “black” is an old industry term for plain finish. Depending on the material grade and heat treatment process the colour can vary from a shiny oily finish to a dull black
- Galling: 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
- Fastener Length: Socket Set Screws length is always measured as an overall measurement
- 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 visible stamped markings, packaging, appearance or actual finish
- Driver bits to suit: A large range of suitable driver bits are in the "Driving" section of our website
- 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
- Buy with confidence: ⇒ 10+ years experience selling online, > 19,000 stock lines, > 80 million pieces ex stock in Brisbane QLD
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| System of Measurement | Metric |
|---|---|
| Product | Socket Set (Grub) Screw |
| Head Type | No Head |
| Size | M8 (8mm) |
| Size & Thread Pitch | M8 x 1.25p Coarse |
| Thread Pitch | 1.25mm |
| Thread Direction | Right Hand |
| Thread Type | Metric - Coarse |
| Corrosion Protection Level | Poor |
| Class / Grade | High Tensile Class 14.9 |
| Material | Alloy Steel Heat Treated |
| Finish | Plain Black Uncoated |
| Length (l) | Select from the dropdown |
| Product Diameter (d) | 7.78 - 8.00mm |
| Drive Size | 4mm |
| Drive Type | Internal Hex |
| Closest size in imperial | 5/16" |
| Standard Made To | DIN 916 |
| Brand | Hobson Engineering |
| Alternative Brands | Brighton Best |
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