Pack of 500 Galvanised Flange Serrated Nut M20 x 2.50p Metric DIN6923 Spinlock

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Seller: Top-Rated Seller fastenersgalore1 ✉️ (80,810) 99.8%, Location: Murarrie, QLD, AU, Ships to: AU, Item: 304495286082 Pack of 500 Galvanised Flange Serrated Nut M20 x 2.50p Metric DIN6923 Spinlock. ALL CATEGORIES
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  • Hex Flange serrated nuts have a wide flange that acts as a fixed, integrated washer, which helps distribute the pressure of the nut over the part being secured. The serrated surface on the underside of the flange provides a locking mechanism by angling into the substrate to keep the nut from rotating in the loosening direction. Flange nuts also save time and money by removing the need for a washer to be added to each fastener assembly during installation
  • Also known as: Stop Nuts, Polymer-insert Nuts, Spinlock Nuts, Whiz Nuts, Whizlock Nuts
  • 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
  • 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
  • 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 Fasteners Galore is not responsible for any loss, claim or damages arising therefrom. In developing this information, Fasteners Galore has made a determined effort to present it accurately
  • Buy with confidence: ⇒ 10+ years experience selling online, > 19,000 stock lines, > 60 million pieces ex stock in Brisbane QLD
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Technical Specification
Product Nut
Nut Type Flange Serrated
Size X Pitch M20 x 2.50p Coarse
Thread Pitch 2.50mm
Thread Type Metric - Coarse
Thread Direction Right Hand
System Of Measurement Metric
Closest Size In Imperial 3/4"
Spanner Size 30mm
Across Flats Af 29.16 - 30.00mm
Hex Height H 18.90 - 19.70mm
Overall Nut Height B 18.90 - 19.70mm
Across Corners Ac 32.95mm
Serrations Under Head Yes
Head Style Hex Flange Head
Flange Diameter F 42.80mm
Material Carbon Steel
Class Grade High Tensile Class 8
Finish Galvanised
Corrosion Protection Level Excellent
Standard DIN6923
Brand Hobson Engineering
Mpn NF08GCM20
Freight Free FREE standard delivery to anywhere in Australia
Tax Invoice Supplied Yes
Australian Stock Yes, supplied & depsatched ex Brisbane
ebay listing template design by
  • Condition: Brand New
  • Model: Nut
  • Type: Flange Serrated
  • Thread Size: M20 x 2.50p Coarse
  • Thread Pitch: 2.50mm
  • Thread Type: Metric - Coarse
  • Thread Direction: Right Hand
  • System of Measurement: Metric
  • Closest Size In Imperial: 3/4"
  • Spanner Size: 30mm
  • Across Flats Af: 29.16 - 30.00mm
  • Hex Height H: 18.90 - 19.70mm
  • Overall Nut Height B: 18.90 - 19.70mm
  • Across Corners Ac: 32.95mm
  • Head Style: Hex Flange Head
  • Material: Carbon Steel
  • Grade: High Tensile Class 8
  • Corrosion Protection Level: Excellent
  • Brand: Hobson Engineering
  • MPN: NF08GCM20
  • Freight Free: FREE standard delivery to anywhere in Australia
  • Tax Invoice Supplied: Yes
  • Australian Stock: Yes, supplied & depsatched ex Brisbane
  • Finish: Galvanised
  • Standard: DIN6923
  • Serrations Under Head: Yes
  • Flange Diameter F: 42.80mm

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