If you’re in a store, grab a tape measure and confirm the key dimensions of the pin, or ask an associate for help. The manufacturer or retailer should display the dimensions on the packaging or with the product information. The pin diameter should match the hole size.įinally, when you go to purchase a hitch pin, buy from a reputable supplier. To make sure you order the right pin, measure the inside diameter (I.D.) of the hole in the side of your receiver. Most hitches follow standardized dimensions as laid out in the chart above, but there may be some variations. Refer to the chart above for how much usable pin length is required for your specific receiver tube size. The usable pin length should accommodate for this dimension. Small clevis pins are usually used in steel like gold and silver. When tighten the wire with a wrench or screwdriver to tighten the wire or other part of the metal, they needs to be inserted into the hole. Take the measurement from the inside edge of one wall to the inside edge of the other. Small clevis pins are other fasteners that need to be inserted into the hole or the surface of the wire. You don’t necessarily need to know the class, but you definitely need to know the receiver tube size. Start by measuring your receiver and confirming which size you have. When browsing the internet or your local towing products supplier for a hitch pin, you’ll undoubtably ask the question, “What size hitch pin do I need?” The two most important things that help answer that question are pin diameter and usable pin length. For these specialized hitches, the pin diameter remains at 5/8”, but pay extra attention to the usable pin length.Īgain, the larger the receiver, the longer the pin needs to be. Some class 5s have a 2” receiver, but others have a 2-1/2” or even 3” receiver. Where things get tricky is with heavier-duty class 5 hitches. If the inside width of the receiver is 1-1/4”, and the metal walls are nearly 1/4” thick, and there needs to be some margin for proper spacing, the minimum usable length is 2”.įor class 3, 4 and most class 5 hitches, it’s the same story, only their required pin diameter is 5/8” and their minimum usable length is 3”. Clevis pins are exceptionally strong pins that can be used in place of rivets or bolts as a quick and secure fastener. Expanding diameter pins have a clearance-fit in their relaxed state. Ejector pins are small specialty pins that are used to push or eject a part or material. Examples include ejector pins, expanding diameter pins, pivot pins, shear pins, and weld pins. Remember, the pin has to pass all the way through the receiver to actually be safe and effective, and allow the hitch clip to be applied. Specialty pins are specialty or proprietary industrial pins. This is because the receiver tubes on class 1s and 2s are always 1-1/4” x 1-1/4”. Class 1 and 2 hitches – like those you might find on a car or minivan – all use a 1/2” diameter pin with at least 2” of minimum usable pin length.
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