https://oscgglands.com.au/products/ostw-serrated-teeth-washer/
OSTW - Serrated Teeth Washer - OSCG GLANDS
[pdfjs-viewer url="https%3A%2F%2Foscgglands.com.au%2Fwp-content%2Fuploads%2F2020%2F10%2FEarth-tag-locknut-teeth-washer-sealing-washer.pdf"
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https://www.niscoinc.com/product/dwyer-ostw-cc-j-m
Dwyer - OSTW-CC-J-M Integral Cable Clamp Cap Conn
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