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The flange offers protection for the bolted component where the driving tool may otherwise scratch it's surface. The flange also lessens the need for a washer.
Flange Nuts, also known as Flanged Nuts, can be used on irregular and oversized holes since the protruding circular flange has a much greater surface area than a standard nut.
Flange Nuts are available with a plain flat underside or with a serrated underside that helps prevent loosening due to vibration.
| A2 Stainless Steel - Also known as grade 304 or 18/8. A general purpose grade of stainless steel. | |
| A4 Stainless Steel - Also known as grade 316 or 18/8/3. A higher corrosion resistant, marine grade of stainless steel. | |
| Black Oxide Class 12+ High Tensile Steel - A high tensile non-stainless grade with a black oxide finish offering limited corrosion resistance. | |
| Bright Zinc Plated (BZP) Steel - Non-stainless standard steel grade offering a basic level of corrosion resistance. | |
| Bright Zinc Plated (BZP) Class 8 High Tensile Steel - The general purpose high tensile grade for nuts, offering a basic level of corrosion resistance. | |
| Plastic (Nylon Polyamide) - A tough lightweight plastic, strong at low temperatures, with excellent resistance to chemicals, and features favourable sliding friction behaviour. |
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