touch hole threads Yes, we use 5/16-32 UNEF threads for the touch hole liners on both the SMR and Woodsrunner kits. Topics: Products_KitsTags: Southern|Woodsrunner|Touch HoleLast verified: 2026-08-15Also called: southern mountain rifle, southern mountain, mountain rifle, southern, smr, woodsrunner rifle, woodsrunner, woods runner, woods-runner, small game rifle, ridgerunner, wr, touch hole, touch-hole, touchhole, vent, vent hole