This standard outlines the specifications for half-round mild steel wire, ranging from 0.4 to 20 mm in diameter, intended for cotter pins. Cotter pins are frequently employed to secure nuts by allowing them to rotate in a circular motion.

The manufacturing method is at the discretion of the manufacturer unless specified otherwise at the time of order placement.

Steel should be provided in either killed or semi-killed form. The wire's chemical composition must align with the standards, and its shapes, sizes, and tolerances should adhere to the specified standard.

The overall requisites for providing mild steel wire for cotter pins should adhere to the standards outlined. The wire should be delivered with a self-coloured finish. Each finished wire should be meticulously drawn or rolled to meet the specified dimensions, ensuring freedom from scales, splits, surface imperfections, roughness, and other detrimental defects.

TESTS

The subsequent test must be conducted for Mild Steel Wire For Cotter Pins.

• Tensile test

• Hardness

• Wrapping test

• Bend test

PACKING AND MARKING

Every wire coil should be securely bound and tightly fastened. Each coil must be marked with essential details such as wire size, lot number, and manufacturer's name or trademark. Additionally, the standard mark (ISI Mark) may be affixed to the material.

To utilize the standard mark (ISI Mark), the manufacturer needs to acquire a BIS license from the Bureau of Indian Standards. This license is granted following a thorough evaluation of manufacturing infrastructure, production processes, and quality control and testing capabilities conducted during an on-site visit to the manufacturing premises.

PROCESS FOR BIS ISI MARK CERTIFICATION