Internal toothed washer M16 DIN6797J galvanized
Internal toothed washer M16 DIN 6797J galvanized (so-called toothed washer / internal tooth lock washer) is a safety element designed to lockM16 screw connections exposed to vibrations. The teeth facing inwards of the washer bite into the head of the bolt/screw and the surface, increasing friction and making it difficult for the connection to loosen spontaneously.
Thanks to the steel construction and galvanized coating, the washer is well-suited for workshop applications, agricultural machinery, steel structures and general service work where secure and durable tightening is important.
✔️ Type: internal tooth lock washer / spring tooth lock washer (internal tooth lock washer)
✔️ Standard: DIN 6797J – washer with internal teeth (Form J), toothed locking washer for bolted connections
✔️ Size: for M16 thread – for M16 metric screws and bolts
✔️ Shape: teeth directed inward – smooth outer edge of the washer
✔️ Material: steel
✔️ Coating: galvanized - anti-corrosion protection
✅ Securing M16 screw connections against loosening under the influence of vibrations and variable loads - the teeth bite into the surface, increasing friction in the connection
✅ Agricultural, industrial, construction machines and equipment – fastening of covers, handles, structural elements and components that cannot become loose during operation
✅ Connections with small screw or bolt heads – internal teeth are particularly recommended where smaller diameter heads are used and at the same time we do not want the teeth to be visible from the outside
✅ Connections exposed to shocks and vibrations – drives, gears, mounting elements in the cabin, workshop equipment, etc.
As a practical workshop standard – a washer that is always worth having at hand when servicing and screwing metal structures
➡ M16 DIN6797J
✅ Effective protection against loosening – the teeth of the DIN 6797J washer bite into the head of the screw/bolt and the fastened element, thanks to which the connection is better protected against loosening due to vibrations and variable loads
✅ Internal teeth = aesthetic and safe assembly – the teeth are hidden under the screw head and the outer edge remains smooth. This works well where the appearance of the connection is important and there are no protruding edges that could catch on clothing or wires
✅ Works well with small heads – washers with internal teeth are especially recommended for screws and bolts with a smaller head diameter (e.g. some machine screws, Allen screws), where classic washers with external teeth do not fit or look unsightly
✅ Galvanized coating increases corrosion resistance - the zinc layer is a protective barrier against moisture and external factors, which extends the life of the washer and the entire screw connection
✅ Universal standard – fits typical M16 bolts and screws, making it easy to replace worn or missing washers in machines and structures.
✅ It works well both in permanent connections and where periodic tightening or inspection is necessary after some time – the washer can be dismantled and reused provided that the teeth are not damaged.
➡ See also other DIN 6797J serrated washers available in our offer to choose the right size for the screws and bolts used in your machines.
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