ISO/TC 2/WG 13 - Washer and non-threaded fasteners

This document specifies mechanical and physical properties of flat washers, designed to be used in bolted joints in combination with bolts, screws, studs and nuts with a specified property class in accordance with ISO 898‑1 and ISO 898‑2. NOTE 1 These types of washers can also be used with other fasteners such as screws forming their own mating thread. Washers that conform to the requirements of this document are evaluated at an ambient temperature range of 10 °C to 35 °C. They might not retain the specified mechanical and physical properties at elevated temperatures and/or lower temperatures. NOTE 2 Washers conforming to the requirements of this document are used in applications ranging from −50 °C to +150 °C. Users are advised to consult an experienced fastener expert for temperatures outside this range and up to a maximum temperature of +300 °C when determining appropriate choices, or for critical applications. This document is applicable to the following flat captive and non-captive washers made of carbon steel or alloy steel, with thickness from 0,2 mm to 12 mm: — plain washers (with or without knurls, ribs or chamfers); — square washers; — square hole washers; — shaped plates. It does not specify requirements for the following properties: — corrosion resistance; — weldability.

ISO 4759-3:2016 specifies tolerances for flat washers of product grades A, C and F with nominal diameters of 1 mm to 150 mm inclusive, designed to be used in bolted joints in combination with bolts, screws, studs and nuts. This part of ISO 4759 may be applied to non-flat washers however it does not include all the tolerances related to these washers. It applies to non-captive and captive washers, and to standard and non-standard washers. It does not apply to dynamic disc springs. Washers of product grades F and A are intended to be used with bolts, screws, studs and nuts of product grades A and B; washers of product grade C are intended to be used with bolts, screws, studs and nuts of product grade C. NOTE The product grade refers to a specific tolerance range related to dimensional and geometrical characteristics (product grade F for fine tolerances, product grade A for precise tolerances, product grade C for large tolerances). Annex A presents tolerances taken from ISO 286‑1 and ISO 286‑2.

ISO 13337:2009 specifies the characteristics of slotted spring-type straight pins, made of steel or of austenitic or martensitic stainless steel, light duty, with nominal diameter from 2 mm to 50 mm inclusive.

ISO 8752:2009 specifies the characteristics of slotted spring-type straight pins, made of steel or of austenitic or martensitic stainless steel, heavy duty, with nominal diameter from 1 mm to 50 mm inclusive.

ISO 8748:2007 specifies the characteristics of coiled, heavy duty spring-type straight pins made of steel or of austenitic or martensitic stainless steel, with a nominal diameter of from 1,5 mm to 20 mm inclusive.

ISO 8750:2007 specifies the characteristics of coiled, standard duty spring-type straight pins made of steel or of austenitic or martensitic stainless steel, with a nominal diameter of from 0,8 mm to 20 mm inclusive.

ISO 8751:2007 specifies the characteristics of coiled, light duty spring-type straight pins made of steel or of austenitic or martensitic stainless steel, with a nominal diameter of from 1,5 mm to 8 mm inclusive.

ISO 16584 specifies dimensional and mechanical characteristics and application data for open end blind rivets with break pull mandrel, protruding head, with a nickel copper body (NiCu) and either a steel (St) or stainless steel (SSt) mandrel and with nominal diameters from 3,2 mm up to and including 6,4 mm.

ISO 16585 specifies dimensional and mechanical characteristics and application data for closed end blind rivets with break pull mandrel and protruding head, with an austenitic stainless-steel body (A2) and a stainless-steel mandrel (SSt) and with nominal diameters from 3,2 mm up to and including 6,4 mm.

ISO 15976 specifies dimensional and mechanical characteristics and application data for closed end blind rivets with break pull mandrel and protruding head, with a steel body (St) and an steel mandrel (St) and with nominal diameters from 3,2 mm up to and including 6,4 mm.

ISO 16583 specifies dimensional and mechanical characteristics and application data for open end blind rivets with break pull mandrel and countersunk head, with a copper body (Cu) and either a steel (St) or a bronze (Br) or a stainless steel (SSt) mandrel and with nominal diameters from 3 mm up to and including 4,8 mm.

ISO 15977 specifies dimensional and mechanical characteristics and application data for open end blind rivets with break pull mandrel and protruding head, with an aluminium alloy body and a steel mandrel and with nominal diameters from 2,4 mm up to and including 6,4 mm.

ISO 15984 specifies dimensional and mechanical characteristics and application data for open end blind rivets with break pull mandrel and countersunk head, with an austenitic stainless steel body (A2) and an austenitic stainless steel mandrel (A2) and with nominal diameters from 3 mm up to and including 5 mm.

ISO 16582 specifies dimensional and mechanical characteristics and application data for open end blind rivets with break pull mandrel and protruding head, with a copper body (Cu) and either a steel (St) or a bronze (Br) or a stainless steel (SSt) mandrel and with nominal diameters from 3 mm up to and including 4,8 mm.

ISO 15979 specifies dimensional and mechanical characteristics and application data for open end blind rivets with break pull mandrel and protruding head, with a steel body and a steel mandrel and with nominal diameters from 2,4 mm up to and including 6,4 mm.

ISO 15975 specifies dimensional and mechanical characteristics and application data for closed end blind rivets with break pull mandrel and protruding head, with a commercially pure aluminium body (Al) and an aluminium alloy mandrel (AlA) and with nominal diameters from 3,2 mm up to and including 4,8 mm.

ISO 15982 specifies dimensional and mechanical characteristics and application data for open end blind rivets with break pull mandrel and countersunk head, with an aluminium alloy body (AlA) and an aluminium alloy mandrel (AlA) and with nominal diameters from 2,4 mm up to and including 6,4 mm.

ISO 15981 specifies dimensional and mechanical characteristics and application data for open end blind rivets with break pull mandrel and protruding head, with an aluminium alloy body (AlA) and an aluminium alloy mandrel (AlA) and with nominal diameters from 2,4 mm up to and including 6,4 mm.

ISO 15980 specifies dimensional and mechanical characteristics and application data for open end blind rivets with break pull mandrel and protruding head, with a steel body and a steel mandrel and with nominal diameters from 2,4 mm up to and including 6,4 mm.

ISO 15978 specifies dimensional and mechanical characteristics and application data for open end blind rivets with break pull mandrel and countersunk head, with an aluminium alloy body and a steel mandrel with nominal diameters from 2,4 mm up to and including 5 mm.

ISO 15983 specifies dimensional and mechanical characteristics and application data for open end blind rivets with break pull mandrel and protruding head, with an austenitic stainless steel body (A2) and an austenitic stainless steel mandrel (A2) and with nominal diameters from 3 mm up to and including 5 mm.

This International Standard specifies two series of shank diameters of rivets for general use, except blind rivets, in the range from 1 mm up to and including 36 mm.

Specifies the characteristics of products with metric dimensions and nominal diameters from 5 mm up to and including 50 mm; tabulates thread sizes M 5 up to M 50 with nominal lengths from 40 mm up to 400 mm and specifications with reference to International Standards; gives an example for the designation.