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1 2 З? 4 5
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CROSS RECESSED RAISED COUNTERSUNK (OVAL)HEAD TAPPING SCREWS
Spesifications
1 2 ISO 225 Fasteners — Bolts, screws, studs and nuts — Symbols and designations of dimensions
ISO 1478 Tapping screws thread
ISO 2702 Heat-treated steel tapping screws — Mechanical properties
ISO 3269 Fasteners —Acceptance inspection^
ISO 4042 Threaded components — Electroplated coatings components 1 )
ISO 4757 Cross recesses for screws
ISO 4759-1 Tolerances for fasteners — Part 1: Bolts, screws and nuts with thread diameter >1,6 and <150 mm and product grades A, ISO 7721 Countersunk head screws — Head configurations and gauging.
ISO 225 ISO 1478 ISO 2702 ISO 3269 ISO 4042 1) ISO 4757 ISO 4759-1 ISO 7721
2,2 ST
2,9 ST
3,5 ST . 4,2 ST 4,8 ST
5,5 ST
6,3 ST 8 ST
9,5
2,2 ST
2,9 ST
3,5 ST
4,2 ST
4,8 ST
5,5 ST
6,3 ST 8 ST
9,5 ' 21 3 > 4) 51
4
5