Internal Thread Size: 5/16"-18. Thread Type: UNC (Unified National Coarse). Thread Direction: Right Hand. Thread Size: 5/16"-18 UNC. Insert Size: 5/16"-18 UNC. Rockwell Hardness: C43-C50.
(2) HeliCoil 5521-7 Inch 1-NEW/1-Used Thread Repair Kit, 7/16"-14 29/64 4531 USA
HeliCoil 5528-7 Inch Fine Thread Repair Kit, 7/16-20 x .656 (5) Threads Left
HeliCoil 5521-7 Inch Coarse Thread Repair Kit, 7/16"-14 x .656"
HELICOIL R1191-5 INCH THREAD REPAIR INSERTS 12ct
Helicoil R1185-5 5/16-18 Inserts - 12 Per Pkg. (r11855)
BILITOOLS 1/4-20 inch Thread Repair Kit, HSS Drill Helicoil Inch
