IS 1363 Part 3 specifies the dimensions and requirements for hexagon thin nuts (also known as jam nuts) with metric coarse pitch threads, ranging in sizes from M5 to M64. These nuts are designed to be thinner than standard hex nuts, making them suitable for applications where space is limited or where a low-profile nut is required.

IS 1363 Part 3 Hex Nuts, being thin profile nuts, find applications in various industries where space constraints or low-profile fastening solutions are required. Here are some common applications: Automotive, Machinery and Equipment Assembly, Plumbing and Pipework, Furniture Manufacturing, Appliances, HVAC Systems, Lighting Fixtures and Telecommunications