Countersunk screw PT D.7991 M8x40 A4/6pc
Product information
| pgb article number | SB1991080040 |
| EAN code | 5410439052061 |
| Box quantity | 6 |
| Brand name | pgb-fasteners |
| Material | Stainless steel A4 |
| Packing type | Blister |
| Thread shape | Partial thread |
| DIY packaging colour | Grey |
| l - Length | 40 |
| b - Thread length | 22 |
| M - Metric thread | M8 |
| Recess/key | HEX 5 |
| dk - Head diameter | 16 |
| Angle | 90 |
| k - Head height | 4,4 |
Technical specifications
| DIN 7991 has been replaced by ISO 10642. They have limited interchangeability. Some head heights and head diameters have been changed. Nominal diameters M18-M22-M24 have been omitted. Stainless steel was removed and the hardness class for steel 10.9 and 12.9 added. The notation "08.8" and "010.9" indicates that these screws may only be subjected to limited loads according to DIN EN ISO 898-1 due to their head geometry. |
| Cancelled 11/1997 |