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PRODUCT

SEM SCREWS

Phillips Pan Head Combination Sem Screw

Material: Carbon Steel etc.

Surface Finish: Plain, Nickle, Zinc,Nylon Lock etc.

Application: Electric Equipments, Computers etc.

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To improve the integrity and strength of assemblies, washers are often used along with screws. 

 It was a great leap forward when screws and washers became pre-assembled into the SEMS screw. This screw includes a free-spinning washer that is locked into place because the screw thread (created after the washer is put on) is larger than the hole of the washer. SEMS are low cost, easy to use and are available from our company in many different sizes, styles, head types, drives, materials and other choices, depending upon your application needs.

SEMS are more than a convenience; they are ingenious, time-and-labor-saving  devices that have revolutionized assembly manufacturing processes.


Double Washer SEMS

The Double Washer SEMS is a fastener with two free-spinning washers. At SEMS and SPECIALS, we offer them in standard and metric sizes. We also manufacture other double washer combination SEMS for your specific application needs.

More cost-effective than conical washersGreat holding strengthCommonly used in the Electronics Industry

For years, the Bailian Fastener Group has made it a priority to manufacture and maintain a high-quality stock of SEMs screws for our customers. 

SEMs are fasteners that incorporate a separate washer held by the threads on a fastener. 

Most commonly, if it is necessary that a mating material does not rotate with a fastener, this is when SEMs come in handy. Bailian Fastener manufactures both inch and metric SEMs screws in a variety of sizes. 

We have the ability to run sems screws up to 1/4 inch diameter.


With a knowledgeable and experienced staff of manufacturers and the utilization art machines, the Bailian Fastener Group has extensive capabilities in manufacturing both inch and metric SEMs fasteners for your specific application requirements. 

Our SEMs are dependable and versatile. The incorporated washer can be many different styles depending on the application, including Conical, Flat, Square Cone, or Internal/External lock.

With our SEMs, as with all the products we provide, Valley puts a heavy emphasis on quality, from the manufacturing process all the way to the shipping dock. Contact our group today to learn more and place an order for SEMs, and we will match you with the right product for your project.

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