The cotter pin secures the bolt in place so that it’s less likely to loosen and come out. Consisting of a U-shaped piece of metal, it’s inserted through the hole of a bolt, after which the ends are twisted together. In ConclusionĪ cotter pin is a simple fastener that’s used to secure a bolt in place. Using this technique, the cotter pin is less likely to wiggle its way out of the bolt - something that could otherwise cause the bolt to come out as well. Some people assume that it’s best to twist the ends of cotter pins together, but this simple fastener offers the greatest protection against loosening when the ends are twisted away from each other. Next, you’ll need to twist the two prong-like ends of the cotter pin outwards and away from each other. To use a cotter pin, simply place it through the bolt’s hole. They already have a pre-drilled hole, allowing for faster and easier installation of a cotter pin. You can always try to drill a new hole into an existing bolt, but there are bolts available that are designed specifically for use with a cotter pin. Therefore, you’ll need to choose a bolt with a pre-drilled hole if you’re planning to secure it using a cotter pin. Without a hole, there’s nowhere to insert a cotter pin. Rather, you can only insert a cotter pin into a bolt if the bolt has a hole in it. Of course, not all bolts support the use of a cotter pin. How Cotter Pins WorkĬotter pins work by preventing the bolt in which they are inserted from coming out. Pins with a zinc-plated finish have some corrosion resistance. Use them to secure the ends of clevis pins and shafts to keep components in place. Cotter pins are inserted into a bolt to prevent the bolt from loosening. Cotter Pins Also known as split pins,these have one prong slightly longer than the other so they’re easy to open. As shown in the adjacent image, cotter pins consist of a narrow U-shaped piece of metal with a flared and circular top. But what exactly is a cotter pin? The Basics of Cotter PinsĪlso known as a split pin, a cotter pin is a simple fastener that’s used to secure a bolt - or any other rod-shaped fastener - in place. They may be simple in design, but cotter pins are the key to preventing rotary parts from becoming loose and falling off during use. There are ways to secure bolts in place, however, including the use of a clutter pin. Cotter pins - also known as split pins - are thin metal pieces used to lock castle nuts in place on machine parts fitted to a shaft. If a bolt is attached to a machine, for instance, the vibrations produced by the machine may cause it to come out. U-type fastener system parts are manufactured from spring steel that is permanently bent in the shape of a “U” to provide secure clamping of wood, plastic and metal parts.It’s not uncommon for bolts to loosen over time. We stock a variety of sizes in 420 stainless steel, metric steel/thermal black, steel black and oiled, and steel zinc. Spring Pins: Are cylindrical fasteners with a spring design to secure the position of mechanical parts.Select from bright or ebony material in sizes from 1/8 to 1 inch. Dowel Pins: Feature a short, cylindrical design for insertion into pre-drilled holes.Cotter Pins: Have a slim design and pass through a hole to hold two components together.Select from a variety of fastener pins in several styles, sizes, and materials: Power Bits: styles include Phillips, Pozidriv® alternative, slotted, square recess, and Torx® for use with power drills.Ĭotter Pins, Dowel Pins, Hitch Pins, and Spring Pins.Available in sizes from 1/4 to 7/16 inches. Magnetic Power Nutsetter: designed for use with drills, drivers, and power screwdrivers, this tool assists in effectively positioning fasteners.Magnetic Hex Insert Bit Holder: designed for use with a screwdriver to hold insert bit in place.Insert Bits: available styles include Phillips, Pozidriv® alternatives, reduced Phillips, slotted, square recess, and Torx®.We carry several types and sizes of screwdriver and power drill insert bits, including: If you don’t see the style, material, or size your application requires, please contact us! Our inventory of fastener system supplies includes everything you need. Browse our selection of fasteners or contact Value Fastener today.Ĭlips Bits Pins & Hooks for Fastener Systems We stock a wide range of items, from power bits to steel zinc spring pins and everything in between. Value Fastener is committed to offering quality fasteners at competitive prices. Just because a fastener is available for a low price doesn’t mean you’re getting a deal – especially if the product is low quality. There are many fasteners distributors that sell products at a low price, but not all of them offer a quality product. Our Selection of Fastener Clips, Pins, & Hook Accessories
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