...in stainless steel (AISI 303 (A2), 316 (A4) and martensitic 416 series), steel (grades 8.8, 10.9, 12.9), and zinc-plated steel. More material and finishing options available. See shoulder screws technical page.
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.
Screws usually consist of a head and a thread. Shoulder screws, on the other hand, have an additional unthreaded "shoulder" in between. The shoulder is a larger diameter than the thread and has a very low tolerance. This helps with the precise alignment of moving parts; the shoulder screw acts as both a fastener and a dowel/axel/guide.
Shoulder screw fastenings are exellent for applications with rotating or sliding elements. They are often 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).
We recognise the fact that your application might require bespoke shoulder screw products. Please get in touch to discuss your options for a bespoke order. We also have a technical page where you can find more information about shoulder screws, including how to choose the right one for your project.
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).
We are proud to be a UK manufacturer of shoulder screws and have a wide range of hardened steel and stainless steel shoulder screws in stock for same-day dispatch. See our extensive range of shoulder screws here. Metric and imperial dimensions available. 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.
We can manufacture any special sizes to customer drawings easily on our fully automated machines (we may require a minimum batch size for this bespoke option). Other material choices include titanium and monel. Finishing options include a black oxide coating, zinc plating, passivation and more. We can also make a variety of special head types, such as hex drive, slot drive, TX (hexalobular) drive, etc.
Our extensive range of shoulder screws is precision made and finished to the highest standards. Take advantage of our free online CAD models with no sign-up or registration required!
We manufacture our products in the south of England and export them all over the world. We hold large volumes of captive 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 is a leading manufacturer of precision screws including captive, shoulder, vented and sealing screws.
We can produce screws to customer drawings and offer a wide range of materials and finishing options, and with a large stock holding in our UK warehouse we can offer next day delivery.
Contact one of our product specialists today for more information.