Product grades A and B
We are the manufacturer of biggest size of nuts ISO 4032, DIN 934, DIN 6915 etc. We have complete in-house production house & Good storage facility in India. We manufacturer of alloy steel, Carbon steel, Stainless steel & Duplex steel nuts. We have complete range of nuts from M12 to M72 if all grades like 8, 10, A2-50,A2-70, A2-80, A4-50, A4-70, A4-80, SS316, SS316L, SS316S31 etc.
| Material | Steel | Stainless Steel | Non-ferrous metal | |
|---|---|---|---|---|
| General Requirement | International Standard |
ISO 8992 | ||
| Thread | Tolerance Class | 6H | ||
| International Standard | ISO 724, ISO 965-1 | |||
| Mechanical properties | Property classa | d
< M3 mm: as agreed M3 mm ≤ d ≤M39 mm: 6,8,10 d >M39 mm: as agreed |
d ≤ 24 mm: A2-70, A4-70 24 mm < d ≤ 39 mm: A2-50, A4-50 d > 39 mm: as agreed |
Materials are specified in ISO 8839. |
| International Standard |
M3 mm ≤ d ≤M39 mm: ISO 898-2 d < M3 mm and d>M39 mm: as agreed |
d ≤ 39 mm: ISO 3506-2 d > 39 mm: as agreed |
||
| Tolerances | Product grade | D
< M16 : A D > M16 : A |
||
| International Standard | ISO 4759-1 | |||
| Finish - Coating | As processed | Plain | Plain | |
| Requirements for electroplating are specified in ISO 4042. | Requirements for electroplating are specified in ISO 4042. | |||
| Requirements for non-electrolytically applied zinc flake coatings are specified in ISO 10683. | ||||
| Additional requirements or other finishes or coatings shall be agreed between the supplier and the purchaser | ||||
| Acceptability | Acceptance inspection is specified in ISO 3269. | |||
| a) Other property classes are specified in ISO 898-2 for steel and ISO 3.506-2 for stainless steel, respectively. b) Whichever is the shorter. |
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Hexagon head bolts according to this document shall be marked with ISO 898-2.
a) Property class marking in accordance with EN ISO 898-2.
