Round head screw with square neck and nut Similar to DIN 603, steel 4.8, zinc-plated with washer and nut
DIN 603 similar steel 4.8 zinc plated with nut
SCR-MHD-4.8-NUT-WSH-(A2K)-M8X20
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The flat square neck fixes the round head screw e.g. in a slot and allows tightening from the nut side without counter-tensioning.
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Use in lightweight metal construction, dry walling, garage door construction (sectional doors, roller doors, retractable doors, etc.) for profiles and brackets with prefabricated slots. Use in dry walling for U-profiles and brackets with prefabricated slots.
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Thread type x nominal diameter (d1) | M8 |
Length (l1) | 20 mm |
Material | Steel |
Property class | 4.8 |
Surface | Zinc plated |
Head diameter (dk) | 20 mm |
Head height (k1) | 5 mm |
Square width (V) | 8.58 mm |
Square height (f) | 1.7 mm |
Washer diameter | 25 mm |
Standards | DIN 603 |
RoHS-compliant | Yes |
Head type | Cup head square neck |
Head details | With square neck |
Thread type | Metric thread |
Pitch | 1.25 mm |
Thread form | Standard metric thread |
Thread design | Full thread |
Thread length (metric thread) (b) | 8 mm |
Product class | C |
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