Lock washers are usually affixed to the fastener's nut side. The spring tension exerted by lock washers prevents the fastener from vibrating loose.
31NLDLZ
$0.51 /Each
50NLDLZ
$1.02 /Pair
37NLDLZ
$0.66 /Each
125NLDLZ
$8.85 /Each
100NLDLZ
$4.71 /Each
87NLDLZ
$3.09 /Each
112NLDLZ
62NLDLZ
$1.50 /Pair
25NLDLZ
$0.38 /Each
75NLDLZ
$2.22 /Each