The name Hex refers to the shape of the ends of a wrench (hexagonal) which can fit into a hexagonal hole. They come in a variety of sizes, so you can find one that is perfect for your job.
.6RKLA
$2.28 /Each
.4RKLA
$0.66 /Each
.12RKLA
$9.38 /Each
.3RKLA
$0.60 /Each
.3RKSA
$0.42 /Each
.10RKLA
$5.98 /Each
.8RKSA
$1.89 /Each
.5RKLA
$1.23 /Each
.2RKLA
$0.51 /Each
.2.5RKLA
$0.57 /Each
.12RKSA
$6.43 /Each
.8RKLA
$4.95 /Each