Metric heavy hexagon nut is used with metric oval neck track head bolt to tighten the housing of groove coupling, and exert pressure on gasket for sealing.
Available size
| Nut with coarse thread (D) | Ref. No. |
|---|---|
| M10 | G5301 |
| M12 | G5302 |
| M16 | G5303 |
| M20 | G5304 |
| M22 | G5305 |
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