Round head screw with square neck and nut DIN 603, steel 4.8, plain, with nut
DIN 603 plain steel 4.8 with nut
SCR-MHD-DIN603-NUT-4.8-M20X240
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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 wood construction, especially carpenter's workshops, pre-fabricated house construction, vehicle construction (e.g. truck load platforms), boat building, trade fair construction, scaffolding construction, for heavy, demountable transport racks or machine crates and transport crates for sea transport. Used to join wooden parts or wood and metal parts. The square neck is sunk into the wood. Hole diameter is dependent on thread dimension. For joining wood to wood, a larger washer must be placed under the nut, e.g. a wood construction washer.
 | |
Thread type x nominal diameter (d1) | M20 |
Length (l1) | 240 mm |
Material | Steel |
Property class | 4.8 |
Surface | Plain |
Head diameter (dk) | 46.8 mm |
Head height (k1) | 11.05 mm |
Square width (V) | 20.84 mm |
Square height (f) | 15.9 mm |
Standards | DIN 603 |
RoHS-compliant | Yes |
Design | With nut |
Head type | Cup head square neck |
Head details | With square neck |
Thread type | Metric thread |
Pitch | 2.5 mm |
Thread form | Standard metric thread |
Shank diameter | 20 mm |
Thread length (metric thread) (b) | 65 mm |
Product class | C |
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