ISO 898-1 Mechanical Properties of Fasteners Testing Machines

  1. Home
  2. ISO 898-1 Mechanical Properties of Fasteners Testing Machines

ISO 898-1 Mechanical Properties of Fasteners Testing Machines

ISO 898-1:2013

Mechanical properties of fasteners made of carbon steel and alloy steel — Part 1: Bolts, screws and studs with specified property classes — Coarse thread and fine pitch thread

ISO 898-1:2013 specifies mechanical and physical properties of bolts, screws and studs made of carbon steel and alloy steel when tested at an ambient temperature range of 10 °C to 35 °C. Fasteners (the term used when bolts, screws and studs are considered all together) that conform to the requirements of ISO 898-1:2013 are evaluated at that ambient temperature range. They might not retain the specified mechanical and physical properties at elevated temperatures (see Annex B) and/or lower temperatures.

Certain bolts and screws might not fulfil the tensile or torsional requirements of ISO 898-1:2013 because the geometry of their heads reduces the shear area in the head compared to the stress area in the thread. These include bolts and screws having a low or countersunk head.

ISO 898-1:2013 is applicable to bolts, screws and studs

  • made of carbon steel or alloy steel,
  • having triangular ISO metric screw thread in accordance with ISO 68-1,
  • with coarse pitch thread M1,6 to M39, and fine pitch thread M8×1 to M39×3,
  • with diameter/pitch combinations in accordance with ISO 261 and ISO 262, and
  • having thread tolerances in accordance with ISO 965-1, ISO 965-2 and ISO 965-4.

It is not applicable to set screws and similar threaded fasteners not under tensile stress (see ISO 898-5).

It does not specify requirements for such properties as weldability, corrosion resistance resistance to shear stress, torque/clamp force performance (for test method, see ISO 16047), or fatigue resistance.

ISO 898 consists of the following parts, under the general title Mechanical properties of fasteners made of carbon steel and alloy steel:
  • — Part 1: Bolts, screws and studs with specified property classes — Coarse thread and fine pitch thread
  • — Part 2: Nuts with specified property classes — Coarse thread and fine pitch thread
  • — Part 5: Set screws and similar threaded fasteners with specified hardness classes — Coarse thread and fine pitch thread
  • — Part 7: Torsional test and minimum torques for bolts and screws with nominal diameters 1 mm to 10 mm1)
The following documents, in whole or in part, are normatively referenced in this document and are indispensable to 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 68-1, ISO general purpose screw threads — Basic profile — Part 1: Metric screw threads
  • ISO 148-1, Metallic materials — Charpy pendulum impact test — Part 1: Test method
  • ISO 225, Fasteners — Bolts, screws, studs and nuts — Symbols and descriptions of dimensions
  • ISO 261, ISO general purpose metric screw threads — General plan
  • ISO 262, ISO general purpose metric screw threads — Selected sizes for screws, bolts and nuts
  • ISO 273, Fasteners — Clearance holes for bolts and screws
  • ISO 724, ISO general-purpose metric screw threads — Basic dimensions
  • ISO 898-2, Mechanical properties of fasteners made of carbon steel and alloy steel — Part 2: Nuts with specified property classes — Coarse thread and fine pitch thread
  • ISO 898-5, Mechanical properties of fasteners made of carbon steel and alloy steel — Part 5: Set screws and similar threaded fasteners with specified hardness classes — Coarse thread and fine pitch thread
  • ISO 898-7, Mechanical properties of fasteners — Part 7: Torsional test and minimum torques for bolts and screws with nominal diameters 1 mm to 10 mm1)
  • ISO 965-1, ISO general-purpose metric screw threads — Tolerances — Part 1: Principles and basic data
  • ISO 965-2, ISO general purpose metric screw threads — Tolerances — Part 2: Limits of sizes for general purpose external and internal screw threads — Medium quality
  • ISO 965-4, ISO general purpose metric screw threads — Tolerances — Part 4: Limits of sizes for hot-dip galvanized external screw threads to mate with internal screw threads tapped with tolerance position H or G after galvanizing
  • ISO 4042, Fasteners — Electroplated coatings
  • ISO 6157-1, Fasteners — Surface discontinuities — Part 1: Bolts, screws and studs for general requirements
  • ISO 6157-3, Fasteners — Surface discontinuities — Part 3: Bolts, screws and studs for special requirements
  • ISO 6506-1, Metallic materials — Brinell hardness test — Part 1: Test method
  • ISO 6507-1, Metallic materials — Vickers hardness test — Part 1: Test method
  • ISO 6508-1, Metallic materials — Rockwell hardness test — Part 1: Test method (scales A, B, C, D, E, F, G, H, K, N, T)
  • ISO 6892-1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature
  • ISO 7500-1, Metallic materials — Verification of static uniaxial testing machines — Part 1: Tension/compression testing machines — Verification and calibration of the force-measuring system
  • ISO 10683, Fasteners — Non-electrolytically applied zinc flake coatings
  • ISO 10684:2004, Fasteners — Hot dip galvanized coatings
  • ISO 16426, Fasteners — Quality assurance system
  • ISO 1891
  • ISO 16047
  • EN 10269
  • ASTM F2281
  • ASTM A320

Faratest Co supplies testing machines

info@faratest.com

Tel: +98 21 88705040

Whatsapp & Telegram: +98 912 1508626

  •  

Leave a Reply