Countersunk scr.010.9 D7991 M4x40 Zp/8pc
Product information
| pgb article number | BZ1991040040 |
| EAN code | 5410439342032 |
| Box quantity | 8 |
| Brand name | pgb-fasteners |
| Material | Steel class 10.9 |
| Packing type | Blister |
| Surface | zinc plated Cr3+ |
| Thread shape | Partial thread |
| DIY packaging colour | Blue |
| l - Length | 40 |
| b - Thread length | 20 |
| M - Metric thread | M4 |
| Recess/key | HEX 2,5 |
| dk - Head diameter | 8 |
| Angle | 90 |
| k - Head height | 2,3 |
Technical specifications
| Due to their head geometry, ISO 10462 screws have a limited load capacity and possibly do not meet tensile or torsional strength requirements. |
| DIN 7991 has been replaced by ISO 10642.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 |