Collection: Auto - Jam Nut

Secure your adjustments and prevent hardware loosening with our selection of Auto Jam Nut components. At DIY Customs, we provide high-strength steel jam nuts, durable stainless steel thin hex nuts, specialized left-hand and right-hand thread options, and heavy-duty locking nuts designed for a perfect fit. Whether you are locking down tie rod ends after an alignment, securing heim joints on a custom suspension build, or preventing set screws from vibrating loose in high-heat engine areas, our professional-grade hardware offers the low-profile clearance and clamping force you need at unbeatable prices. From specialized zinc-plated and black oxide finishes to metric and standard (SAE) thread pitches, we carry the essential gear for every mechanical rod and linkage. Don't see the specific thread size (1/2", 5/8", 3/4"), pitch, or specialized left-hand thread nut for your project? Hit the live chat or call 412-882-8346—we can special order and drop-ship exactly what you are looking for directly to your doorstep!