BS EN ISO 14581:2013 pdf free
BS EN ISO 14581:2013 pdf free.Fasteners – Hexalobular socket countersunk flat head screws
BS EN ISO 14581 specifies the characteristics of hexalobular socket countersunk flat head screws in product grade A and with threads from M2 to M10 inclusive and with reduced loadability according to Table 3.If, in special cases, specifications other than those listed in this International Standard are required,they can be selected from existing International Standards, e.g. ISO 261, ISO 888, ISO 898-1, ISO 965-2,ISO 3506-1 and ISO 4759-1.
NOTE Countersunk head screws, high head, made of steel, with property classes 4.8, 8.8 and 10.9, are specified in ISO 14582, but these products are not interchangeable, because of different head heights.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 225, Fasteners一Bolts, screws, studs and nuts一Symbols and descriptions of dimensions
ISO 261, ISO general purpose metric screw threads一General plan
ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel一Part 1: Bolts, screws and studs with specified property classes一Coarse thread and fine pitch thread
ISO 965-2, ISO general purpose metric screw threads一Tolerances 一Part 2: Limits of sizes for general purpose external and internal screw threads一Medium quality
ISO 3269, Fasteners一Acceptance inspection
ISO 3506-1, Mechanical properties of corrosion-resistant stainless steel fasteners一Part 1: Bolts,screws and studs
ISO 4042, Fasteners一Electroplated coatings
ISO 4759-1, Tolerances for fasteners一Part 1: Bolts, screws, studs and nuts一Product grades A, B and C
ISO 6157-1, Fasteners一Surface discontinuities一Part 1: Bolts, screws and studs for general requirements
ISO 7721, Countersunk head screws一Head configuration and gauging
ISO 8992, Fasteners一General requirements for bolts, screws, studs and nuts
ISO 10664, Hexalobular internal driving feature for bolts and screws
ISO 10683 Fasteners一Non-electrolytically applied zinc flake coatings
ISO 10684, Fasteners一Hot dip galvanized coatings
ISO 16048, Passivation of corrosion-resistant stainless-steel fasteners
In addition, when full-size screws are tensile tested in accordance with ISO 3506-1, they shall withstand the reduced minimum ultimate tensile loads given in Table 3. When tested to failure, the fracture might occur in the threaded section,the head, the shank or at the head/shank junction.BS EN ISO 14581 pdf download.
