Shoulder screws are screws that usually consist of a head and a thread. However, unlike typical screws they also consist of an additional unthreaded “shoulder” in between. The shoulder has a larger diameter than the thread and has a very low tolerance which helps with the precise alignment of moving parts; the shoulder screw acts as both a fastener and a dowel/axel/guide.
Also known as shoulder bolts, and sometimes even referred to as stripper bolts, shoulder screws are available in a range of different materials and finishes, including stainless steel and titanium.
For more information about shoulder screws - including details about different shoulder screw materials, sizes and applications - please browse our products below and have a read through our FAQs now.
Hex. socket shoulder screws with thread sizes available in marine grade 316 series stainless steel (A4; suitable for outdoor/marine environments).
Large shoulder screws with thread sizes M3 - M16 and shoulder lengths 4 - 140mm to meet ISO 7379.
Tx drive shoulder screw in marine grade stainless steel (AISI 316). Suitable for outdoor use.
Our popular stainless steel shoulder screws are also available with imperial (inch) dimensions.
Our slotted stainless steel shoulder screws are also available with imperial (inch) dimensions.
See all steel shoulder bolts here - we manufacture these in construction grade 8.8 steel and high tensile grades 10.9 and 12.9 steel. Protective finishes and special sizes can be manufactured on request.
Shoulder screw fastenings are excellent for applications with rotating or sliding elements and can often be used as shafts for rotating bushings and bearings.
Shoulder screws are commonly used in the automotive industry to attach gears or wheels, in the medical tool manufacturing industry, and in injection molding applications (where the shoulder acts as a linear guide so that the two halves of the mold align correctly).
The process for ordering shoulder screws from Automotion Components could not be easier; simply select a shoulder screw product from the list above and click ‘show full range’. Once you have selected your product specifications and unit quantity click the add to basket icon and proceed to the checkout.
If you require a bespoke shoulder screw size, or special head, simply get in touch with a member of our friendly customer service team now and we will be happy to help.
At Automotion Components we can manufacture any special shoulder screw size relative to customer drawings on our fully automated machines (we may require a minimum batch size for this bespoke option).
We can also make a variety of special head types, such as hex drive, slot drive, TX (hexalobular) drive etc…Finishing options include a black oxide coating, zinc plating, passivation and more.
Our shoulder screws come in a variety of different materials and finishes including Stainless steel, titanium, steel and blackened stainless steel. To view our full range of different materials and sizes please click on the materials and finishes boxes above.
The sizes available differ for each range and style of shoulder screw. The most common range of sizes are M2 up to M16 but the shoulder bolt range, such as our P0138 for example, go up as large as M42.
If you need any assistance regarding shoulder screw sizes please get in touch with a member of our team now.
At Automotion Components we are proud to say that our products are manufactured in the south of England and exported all over the world. We hold large volumes of shoulder screws in stock and can usually offer extremely quick turnaround times with same-day shipping as standard once an order is placed. Full export documentation is always provided for overseas customers. Our friendly customer service team is on hand to help you find the product which will make your designs come to life!
Automotion Components's popular vented screws now come in a shoulder screw variation. Vented screws are useful for high or ultra-high vacuum environments because the vent allows trapped gases in the bottom of a tapped hole to escape more easily. Best used with a vented washer, which also helps trapped gases under the head of the screw escape.
Vented shoulder screws would be a good choice for applications such as vacuum cabinets, where panels must be aligned very accurately to ensure a good seal and when high vacuum conditions must be acheived - preferably in a short time.
Our vented shoulder screws are available in stainless steel (AISI 303 [our code: A2] and AISI 316 [our code: A4 - marine/medical grade]), and in titanium (grades 2 and 5). We can also offer passivation and ultrasonic cleaning for ultra clean applications. See our vented screws technical page for more information on different materials and finishes available.
Vented shoulder screw. Available in stainless steel (AISI 303 and 316 series). Titanium version can be produced on request (grade 2 or grade 5).
As a trusted and reliable UK components manufacturer we offer an extensive range of shoulder screws in many different materials and sizes that are in stock and ready for same-day dispatch.
Our extensive range of shoulder screws are precision made and finished to the highest standards. We have a thorough quality process (ISO 9001:2015 certified), our materials are fully traceable, and our products are RoHS and REACH compliant. We can provide material certificates, batch numbers, FAIRs and ISIRs on request.
At Automotion Components we go the extra mile to help you bring your designs to life. Our friendly and dedicated UK customer support team are always on hand to help resolve any questions or queries so please contact us now.
For more information about shoulder screws, including technical info and details about how to choose the right shoulder screw for your project, please visit our shoulder screws technical page now.