Steel Hex Jam Nut, Plain Finish, Grade 2, ASME B18.2.2, 2-1/2"-4 Thread Size, 3-3/4" Width Across Flats, 1-11/32" Thick

The grade 2 steel hex jam nut has a plain finish and meets American Society of Mechanical Engineers ASME B18.2.2 specifications. Also called a thin nut, it is thinner than a standard hex nut for use in tight areas and is often used with another jam nut to help prevent loosening. It has six flat sides that a wrench can grip to turn from the side, enabling use when there is no space above the nut. Grade 2 steel, composed of either low or medium carbon steel, is often used in applications where toughness is the primary consideration.Nuts are internally threaded fasteners that are used with bolts and threaded rods and studs to connect components. Several different nut styles fit a variety of application and installation requirements. Some styles, such as hex nuts, acorn nuts, flange nuts, and coupling nuts, must be tightened with a tool. Others, such as eye nuts, thumb nuts, and wing nuts, can be tightened by hand. Some nuts have a self-locking mechanism, such as a nylon patch or distorted threads, that makes them suitable for applications with a high amount of vibration.

• Hex jam nut is thinner than standard hex nuts for tight areas and often used with another jam nut to help prevent loosening
• Grade 2 steel is often used in applications where toughness is the primary consideration
• Plain surface has no finish or coating
• Meets ASME B18.2.2 specifications