1/2" x 13 TPI UNC Coarse Stainless A2-70 G304 Hex Thin Nyloc Nuts
$8.00
In stock
SKU
41NSLC12
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- Hex Thin Nyloc nuts are hex shaped, internally threaded with a nylon insert. The nylon material prevents loosening from vibration and cross threads to stop the nut from backing off of the fastener. The insert deforms elastically over the threads of the screw, but threads are not cut into the nylon. The nylon insert locks the nut in two ways. First, it forces the bottom face of the screw threads against the top face of the nut threads, increasing the friction between the two. Second, the nylon applies a compressive force against the screw itself. They can also be used to assist sealing the bolt thread against seepage of oil, water, petrol, paraffin and other liquids. They come in a variety of materials
- Correct use of a Thin Nyloc Nut: Is to install it under the larger nut. The thin nut deforms and creates a locking action on the thread as the larger nut is tightened. Therefore the thin nut is more effective when it is soft
- Also known as: Hex Jam Nuts, Jam Lock Nuts, Half Nuts
- Material / Coating: Stainless Steel A2-70 G304 is the most popular grade of stainless steel. It is aesthetically pleasing to the eye and very practical because of its excellent corrosion protection in most environments. Most products can be identified by the following markings: A2, A2-70, 304 or G304 but not all nuts are stamped. Stainless steels are largely non-magnetic but it is common for some stainless steel fasteners to show a small degree of magnetism which is a result of work-hardening during the manufacturing process
- Can Stainless corrode?: Stainless steel is corrosion-resistant but not corrosion-proof and corrosion can occur if the material is installed or handled incorrectly. The use of tools and drills made from conventional steel during the installation of stainless steel fasteners may also lead to problems. Even the hardest of tools can produce debris that leaves minute steel particles on the stainless steel fastener surfaces or in pre-drilled holes. It is these particles that often rust when exposed to moisture or oxygen and can result in a stained or tarnished finish to the stainless steel material
- 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 - What does TPI stand for?: TPI stands for “threads per inch” which literally means the number of threads within each inch on a nut, a bolt, or a fastener. To determine the TPI of a nut, either count the number of threads contained within an inch of length on the male fastener or use a thread checker. If the male fastener is less than an inch, measure 1/2", count how many there are then multiply the number by 2
- 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 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 | Imperial |
|---|---|
| Product | Thin Nyloc Nut |
| Size | 1/2" |
| Size & Thread Pitch | 1/2" x 13 TPI UNC |
| Thread Pitch | 13 TPI |
| Thread Direction | Right Hand |
| Thread Type | UNC / BSW - Coarse |
| Corrosion Protection Level | Excellent |
| Class / Grade | A2-70 G304 |
| Material | Stainless Steel |
| Across Flats (af) | 0.736 - 0.750" (18.70 - 19.05mm) |
| Across Corners (ac) | 0.837" (21.26mm) |
| Nut Height Overall (b) | 7.55 - 8.35mm |
| Hex Height (h) | 5.42mm |
| Spanner Size | 3/4" |
| Closest size in mm | M12 (12mm) |
| Brand | Hobson Engineering |