M12 x 52mm Inside (W) x 145mm Length (L) Galvanised Square U Bolts & Nuts
$10.00
In stock
SKU
58US1252145G
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- Square U Bolts are the shape of a "U" with two legs. The threaded ends are designed for use with washers and nuts, and can also be used with a crosspiece spanning both threaded arms of the bolt, to make it more secure in certain settings and uses. U-bolts are designed to be inserted through holes that have already been drilled or punched
- Square bend U-bolts are typically used for attaching product to a square shaped post. They can also be embedded in concrete and used as anchor bolts. Round bend U-bolts are typically used for attaching pipe or steel round bar to a round wood or steel post. Another common application is to secure or hang pipe in mechanical installations
- Material / Coating: Galvanised is a dull greyish colour and can be a little rough in appearance and is mainly used outdoors because of its superior corrosion resistance and proven longevity. Also known as HDG, it is one of the best coatings for protection against rust. Galvanised fasteners have been used across many industries in Australia for over 150 years, roofing, steel buildings, trailers, bridges, fencing, power poles, marina’s, are just a few examples. Recently we have seen a lot of new coatings developed, terms like class 3, class 4, B8, climseal, mechanical galvanised and ruspert are all variations of the original galvanising
- Is Zinc and Galvanise Interchangable: Due to plating thicknesses galvanised and zinc plated threads are not interchangeable. A zinc nut will not wind onto a galvanised u bolt without damaging the threads and a galvanised nut will be too loose on a zinc plated thread
- 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
- Difference between UNC v BSW Threads: UNC and BSW have the same thread per inch value, except for the 1/2" size. Theoretical it would be possible to interchange them as they have the same amount of threads per inch. However due to the difference in thread angle, the connection would not be as strong as when using the proper combinations
- 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 at times may be sourced from various suppliers, therefore small 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 | Square U Bolt and Nut Kit |
| Included With U Bolt | 1 x U Bolt & 2 x Hex Nuts & Spring Washers |
| Size | M12 (12mm) |
| Size & Thread Pitch | M12 x 1.75p Coarse |
| Thread Pitch | 1.75mm |
| Thread Direction | Right Hand |
| Thread Type | Metric - Coarse |
| Corrosion Protection Level | Excellent |
| Class / Grade | Low Tensile Class 4.6 |
| Material | Mild Steel |
| Finish | Galvanised |
| Overall Length From Inside | 144.00 - 146.00mm |
| Inside Width (w) | 51.00 - 53.00mm |
| Centre Width (a) | 63.00 - 65.00mm |
| Thread Length Per Leg (t) | 49.00 - 51.00mm |
| Closest size in imperial | 1/2" |
| Standard Made To | Made to Hobson Engineering Standard |
| Brand | Hobson Engineering |