Double

A machine screw and free-spinning lock-washer manufactured as one assembly. Steel SEMS are available with the following types of washers: internal tooth, external tooth, split-lock washer, and square cone. Stainless SEMS are offered with external tooth lock washers.



Unsure which fastener is best for your job? Call us at 866-501-9504 and one of our trained technicians will help you find the right metric fasteners for your application.



M2X16 Phillips Pan Head Double Sems Flat Washer Stainless Steel A2 JISB1188SKU: # M33306Quantity Available: 0
$1.34

Item Out-Of-Stock, inventory will be replenish shortly. Please email sales@mrmetric.com for urgent requirement.

M3X10 Phil Pan Head Dbl Sems 6OD A2-SS JIS B1188SKU: # M34048Quantity Available: 0
$0.06

Item Out-Of-Stock, inventory will be replenish shortly. Please email sales@mrmetric.com for urgent requirement.

M8X25 Indented Hex With Double SEM 15.5 OD Steel 4.8 Zinc JIS B1187SKU: # M39968Quantity Available: 82
$0.05 $0.63
M3X25 Phillips Pan Head Machine Screw With Double SEMs OD 7 Steel 4.8 Yellow Zinc JIS B1188SKU: # M34045Quantity Available: 0
$0.03

Out-Of-Stock, inventory will be replenished shortly. Please email sales@mrmetric.com for urgent requirement.