TAPER LINE, INC. PART NO. Face Lock Style TLN08 Peripheral Lock Style TLN08PH For face lock applications sizes 03 thru 08 consult TAPER LINE. NOTE: Dimensions apply to both Face Peripheral styles. Locknuts are checked on "GO" size gages. Use suffix "P" for Piloting Feature. (Extra Cost) Locknuts are furnished with both Spanner Slot Holes.