Hammer Lock Type Split Pin

Choose the material of the hammer lock type split pins according to different usage scenarios and requirements. Stainless steel, such as 304 or 316, resists rust better than other materials and is strong and durable.Carbon steel, often treated with heat, has high shear strength for heavy-duty jobs.  Brass cotter pins, made from copper-zinc metal mixes, stand up to seawater and electromagnetic interference. For special situations, they might use nickel or aluminum alloys instead.

Xiaoguo® factory test materials to meet industry standards. We check the material's hardness, bendability, and whether it can withstand repeated stress without breaking. It meets relevant quality standards and can be tightened normally from the first use to the end of its service life.

Regular inspection

Check hammer lock type split pins regularly to stop things from breaking down. Keep an eye out for rust, bends, or wear,especially in spots that shake a lot. If a pin’s rusty or bent, swap it out ASAP to keep parts from wobbling loose. You usually don’t need to grease these pins, but maybe add a little oil if they’re near saltwater. When putting them back, use pliers to carefully bend the ends open and shut,don’t crank them too hard, or the metal could get brittle. Store extras in a dry spot so they don’t rust before you need them. For key systems, follow the manual’s replacement schedule. Do this, and they’ll hold up fine for ages.

In high-vibration environments

Q: Can hammer lock type split pins withstand high-vibration environments without loosening?

A: These split pins work really well in places that vibrate a lot, as long as they’re installed correctly. The split legs create friction and resistance, which stops them from coming loose. If the conditions are extra tough, you can use cotter pins with locking nuts or washers. When you bend the legs, make sure they’re even and lie flat against the shaft,this keeps them from catching on anything. Stainless steel cotter pins are better here because they stand up to repeated stress better. Even so, it’s a good idea to check them regularly, especially in demanding setups, to make sure they’re still holding up.

Product Uses

Hammer Lock Type Split Pin is mainly used for locking and anti-loosening of bolts, nuts and shafts in mechanical equipment, automotive parts and agricultural machinery. The hammer lock design allows for quick installation—you just insert the pin into the pre-drilled hole of the fastener, then tap the lock part with a small hammer to fix it in place. It’s suitable for scenarios where frequent disassembly is not required, such as the fixing of wheel hubs, connecting rods and gearboxes. This pin can also be used in construction machinery and ship equipment, as it can effectively prevent fasteners from loosening due to vibration. It works in both indoor and outdoor environments, but in humid or corrosive areas, regular inspection is needed to ensure the locking performance is not affected.

Product Material

Hammer Lock Type Split Pin is usually made of carbon steel, stainless steel or galvanized steel. Carbon steel is the most commonly used material, which is cost-effective and suitable for general indoor applications with no high corrosion resistance requirements. Stainless steel, mainly 304 and 316 grades, is used in environments that need corrosion resistance, such as outdoor equipment or coastal areas. Galvanized steel is carbon steel with a zinc coating, which enhances rust resistance and is suitable for mild outdoor environments. The material selection depends on the application scenario and the required service life. All materials meet basic industry standards to ensure the pin has sufficient toughness and strength to withstand the impact during installation and the vibration during use. No additional processing is needed before use, just select the appropriate size according to the fastener’s hole diameter.