This helical insert is made of 18-8 stainless steel and has a bright (uncoated) finish. It meets the standards for MS122129, NASM122129 industry standards. This helical insert is designed for use with metal.
Technical Specs
ItemHelical Insert
System of MeasurementInch
Thread Size7/8"-9
Thread TypeCoarse
Material Grade/Class18-8
Tang StyleTanged
Compatible Tap Size7/8"-9
Maximum Hole Diameter0.7547 in
Outside Diameter1.05 in
Rockwell HardnessC43 to C50
ApplicationFor Metal
Helical Insert TypeFree-Running
Overall Length1 5/16 in
Thread DirectionRight Hand
MaterialStainless Steel
FinishBright (Uncoated)
Compatible MaterialMetal
Drill Bit Size29/32 in
Tensile Strength200,000 psi
Industry StandardsMS122129, NASM122129
SeriesPowerCoil
Product TypeHelical Insert
Country of OriginUnited Kingdom
(subject to change)