BS EN ISO 10510 pdf download

BS EN ISO 10510 pdf download

BS EN ISO 10510 pdf download Tapping screw and washer assemblies with plain washers
1 Scope
This International Standard specifies the requirements for tapping screws and plain washer assemblies withthread sizes from ST2,2 to ST9,5 inclusive, flat seating heads and mechanical properties as specified inISO 2702.
The plain washers are captive, i.e. prevented from disassembly and free to rotate.
2Normative references
The following referenced documents are indispensable for the application of this document. For datedreferences,only the edition cited applies. For undated references,the latest edition of the referenceddocument (including any amendments) applies.
ISO 1478,Tapping screws thread
ISO 1479,Hexagon head tapping screwsISO 1481,Slotted pan head tapping screws
ISO 2702,Heat-treated steel tapping screws Mechanical properties
ISO 6507-1,Metallic materials — Vickers hardness test— Part 1: Test methodISO 7049,Cross-recessed pan head tapping screws
ISO 10669, Plain washers for tapping screw and washer assemblies —Normal and large series — Productgrade A
3 Dimensions
The dimensions of the assembled screws shall conform to the designated product standards for loose partswith the following exceptions:
screws shall have a shank of such diameter, ds,that the washer with dimensions in accordance withISO 10669 is free to rotate;
the permitted distance from the underside of the head to the first full thread shall be increased by themaximum thickness of the washer as specified in lsO 10669;
– the transition diameter,da, shall be reduced by the difference between the nominal and thread roling
For the dimensions, see Figures 1 to 4 and Table 1.

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