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Slotted Pan Head External Tooth Machine Screw SEMS, Zinc Plated

SEMS, External Tooth, Pan Head Slotted

Also known as:  

Machine Screws with Lock Washers

SEMS are machine screws with free-turning captive lock washers—external tooth and internal tooth lock washers are common. The screw/washer assembly saves time when compared to using individual screws and washers. Internal SEMS, which have an internal tooth lock washer, are preferred when it is desirable to hide the teeth. The larger radius of an External SEMS, though, provides greater locking action. Length is measured from under the head.

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Code Product Qty. Package Qty. Carton  
SC102-0463 4-40 x 1/4" Slotted Pan Head External Tooth SEMS Machine Screw, Zinc Plated
SC102-1463 4-40 x 1/2" Slotted Pan Head External Tooth SEMS Machine Screw, Zinc Plated
SC102-8463 10-24 x 1/2" Slotted Pan Head External Tooth SEMS Machine Screw, Zinc Plated
SC102-6463 10-32 x 1/2" Slotted Pan Head External Tooth SEMS Machine Screw, Zinc Plated
SC102-7463 10-32 x 5/8" Slotted Pan Head External Tooth SEMS Machine Screw, Zinc Plated
SC102-9463 1/4-20 x 3/4" Slotted Pan Head External Tooth SEMS Machine Screw, Zinc Plated