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Aspen Fasteners
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Sems Screws

External Tooth Sems Internal Tooth Sems
Sems Screws - External Tooth Sems
Sems Screws - Internal Tooth Sems
Split Lock Washer Sems Square Cone (r) Sems
Sems Screws - Split Lock Washer Sems
Sems Screws - Square Cone (r) Sems

Sems Screws

A SEMS Screw is a machine screw pre-assembled with a free-spinning lock washer. The washer is held in place by the major diameter of the screw thread being larger than the hole of the washer. Available in steel with an external tooth lock washer, internal tooth lock washer, split lock washer or square cone lock washer. Also available in metric and stainless steel.

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If you can't find the SEMS screws you're looking for on Aspen Fasteners, or if we do not have stock of a specific part, we will do our best to find the item for you. All of the inch and metric SEMS screws listed in zinc or stainless steel are standard stock items ready to ship the same day.

All of our SEMS are available in carton quantities, but if smaller quantities are required, let us know as we are often able to offer the same parts in smaller package quantities. If you require a quote for a specific fastener or SEMS screw (listed or not), please call us at 1-800-479-0056 or email us at aspensales@aspenfasteners.com and one of our knowledgeable sales staff will help you with your needs.

All prices of fasteners or SEMS screws listed on the site includes shipping to your destination. If you have any special shipping requirements (eg expedited/next day delivery), please let us know at the time of order placement and we will make the necessary arrangements. Discounts are available for larger quantity orders. Major credit cards are accepted.

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