What is BS 4894 - Bifurcated rivets about?
A bifurcated rivet is a mechanical fastener consisting of a split shaft with a head. BS 4894 discusses standards for bifurcated rivets for general purpose use. BS 4894 specifies the materials and dimensions for bifurcated rivets with shank diameters of 2 mm to 5 mm inclusive and with oval and 155° countersunk heads.
BS 4894 describes the use and application of rivets with different head styles. A choice of slot depths is given, a general-purpose slot depth for use when joining soft materials such as leather, cloth, paper and soft wood, and a shorter slot depth for use with harder materials such as hardwood and thin metal.
Who is BS 4894 - Bifurcated rivets for?
BS 4894 on bifurcated rivets is useful for:
- Manufacturers and suppliers of rivets
- Design engineers
- Construction industries
- The Organisation that designs and maintains rivets
- Industries where bifurcated rivets are used
- Quality control personnel
- Inspection bodies
- Research and development team
- Mechanical engineers
Why should you use BS 4894 - Bifurcated rivets?
Bifurcated rivets are used for the fastening together of unpierced leather, cloth, paper, card, wood and thin metal strips, and can fasten three strips of different materials under appropriate conditions. So long as the bifurcated legs are well spread, fastening is tolerant of clench quality, and the joint strength is related more to the strength of the materials being fastened.
BS 4894 provides you with the dimensions and tolerances of bifurcated rivets with head types: countersunk and oval. BS 4894 also provides you with characteristics and material requirements for bifurcated rivets.
Following guidelines provided in BS 4894 for bifurcated rivets, help you to produce and supply high-quality rivets with enhanced strength and durability to your customers. These customers will be able to use the bifurcated rivets safely.
What’s changed since the last update?
BS 4894: 1993 supersedes BS 4894:1973, which is withdrawn. BS 4894:1993 includes some principal changes with respect to BS 4894:1973. These include:
- A hardening up of all the metric dimensions to replace the soft metric equivalents of the inch dimensions in BS 4894:1973
- The alteration of certain tolerances to allow the product to be produced either by cold forging or machining from solid
- The addition of aluminium as a material from which rivets may be manufactured
