Class 4.8 External Sems Pan Head Machine Screws
Phillips Pan External Sems machine screws essentially have a ‘pre-assembled’ lock washer beneath the head of the screw which is free-spinning which saves time. External Tooth SEMS screws provide greater torsional resistance than internal tooth lock washers.
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M3-0.5x6 External Tooth Sems Phillips Pan Head Machine Screws ...
$0.13
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M3-0.5x8 External Tooth Sems Phillips Pan Head Machine Screws ...
$0.14
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M3-0.5x10 External Tooth Sems Phillips Pan Head Machine Screws...
$0.14
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M3-0.5x12 External Tooth Sems Phillips Pan Head Machine Screws...
$0.15
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M4-0.7x8 External Tooth Sems Phillips Pan Head Machine Screws ...
$0.18
