Wholesale Custom Shoulder Bolts Special Thread Size And Shoulder Tolerance For Precision Machinery Assembly

Custom shoulder screws are manufactured to your specific design requirements rather than standard catalog sizes. You control every dimension including shoulder diameter, shoulder length, thread size, head style and material. This allows you to create the exact precision shaft or spacer your application needs.

Standard shoulder screws may not fit your specific design. Your bearing needs a 5.5mm shaft but standard is 6mm. Your clearance requires a 7.5mm shoulder length but standard is 8mm. Custom shoulder screws solve these problems. You get exactly what your design calls for.

We accept full customization on the following parameters. Shoulder diameter from 2mm to 25mm. Shoulder length from 2mm to 150mm. Thread size metric or inch. Head style hex socket or flat head countersunk. Material stainless steel 304 316 or alloy steel. Surface finish plain zinc plated or black oxide. Shoulder tolerance to your specified class.

Our flat head custom shoulder screws feature an 82 degree countersunk head that sits flush with the surface. This design is perfect for applications with limited clearance where a protruding head is not acceptable. The shoulder still provides precision shaft function while the head is concealed.

Custom shoulder screws are widely used in OEM jigs fixtures, special purpose machinery, prototype equipment, repair and maintenance parts, precision gear shafts, custom bearing assemblies, and any application where standard sizes do not fit.

Every custom shoulder screw is manufactured to your drawing specifications. We provide dimensional inspection reports. Our ISO 10012 certified measurement management system ensures every measurement is accurate and traceable.

We welcome custom orders of any quantity from prototype to mass production. Bulk wholesale pricing available for larger quantities. Factory direct shipping to over 60 countries worldwide. Submit your drawing for a free quote.