1 This International Standard specifies the acceptance inspection procedure that the purchaser of fasteners must follow in order to determine whether a lot of fasteners will be accepted or rejected in cases where no other such procedure was agreed with the supplier at the time the fasteners were ordered. Additional requirements for acceptance may be included in a specific product standard (for example, one on prevailing torque-type nuts). The same procedure is also to be applied in cases where conformance to specification is disputed.
2 This International Standard is applicable to bolts, screws, studs, nuts, pins, washers, blind rivets and other related fasteners not intended for high volume machine assembly, special-purpose applications or specially engineered applications requiring greater in-process control and lot traceability (see the note in the introduction). The procedure for these products shall be agreed upon by the supplier and the purchaser prior to the confirmation of the order.
3 This International Standard is applicable only to fully manufactured products; it neither implies nor includes any particular in-process control procedure or inspection during production.
4 The production of accessories, services and partially fabricated parts (for example, washers, nuts, plating, heat treatment and blanks) for use in the manufacture of fasteners may be subcontracted to other suppliers by the fastener supplier. Nevertheless, the supplier of the final, finished product shall be solely responsible for the fastener's quality.
The requirements of this International Standard apply only to the condition of fasteners at the time of delivery. Any process carried out after receipt (for example, plating) will invalidate the requirements of this International Standard.
5 Annex B (informative) offers guidance to, and an explanation of, the principles upon which this International Standard is based.
ISO 1502:1996 ISO general-purpose metric screw threads - Gauges and gauging
ISO 2320:1997 Prevailing torque type steel hexagon nuts - Mechanical and performance properties
ISO 2702:1992 Heat-treated steel tapping screws; mechanical properties
ISO 2859-1:1999 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
ISO 3506-1:1997 Mechanical properties of corrosion-resistant stainless-steel fasteners - Part 1: Bolts, screws and studs
ISO 3506-2:1997 Mechanical properties of corrosion-resistant stainless-steel fasteners - Part 2: Nuts
ISO 3506-3:1997 Mechanical properties of corrosion-resistant stainless-steel fasteners - Part 3: Set screws and similar fasteners not under tensile stress
ISO 4759-1 Tolerances for fasteners - Part 1: Bolts, screws, studs and nuts - Product grades A, B and C*, 2000-11-01 Update
ISO 4759-3:2000 Tolerances for fasteners - Part 3: Plain washers for bolts, screws and nuts - Product grades A and C
ISO 6157-1:1988 Fasteners surface discontinuities; part 1: bolts, screws and studs for general requirements
ISO 6157-2:1995 Fasteners - Surface discontinuities - Part 2: Nuts
ISO 6157-3:1988 Fasteners; surface discontinuities; part 3: bolts, screws and studs for special requirements
ISO 7085:1999 Mechanical and performance requirements of case hardened and tempered metric thread rolling screws
ISO 8839:1986 Mechanical properties of fasteners; Bolts, screws, studs and nuts made of non-ferrous metals
ISO 898-1:1999 Mechanical properties of fasteners made of carbon steel and alloy steel - Part 1: Bolts, screws and studs
ISO 898-2:1992 Mechanical properties of fasteners; part 2: nuts with specified proof load values; coarse thread
ISO 898-5:1998 Mechanical properties of fasteners made of carbon steel and alloy steel - Part 5: Set screws and similar threaded fasteners not under tensile stresses
ISO 898-6:1994 Mechanical properties of fasteners - Part 6: Nuts with specified proof load values - Fine pitch thread