This helical insert is made of 18-8 stainless steel and has a bright (uncoated) finish. It meets the standards for MS21209-C5-20, NASM21209-C5-20 industry standards. This helical insert is designed for use with metal.
Technical Specs
ItemHelical Insert
System of MeasurementInch
Thread Size5/16"-18
Thread TypeCoarse
Material Grade/Class18-8
Tang StyleTanged
Compatible Tap Size5/16"-18
Maximum Hole Diameter0.2524 in
Outside Diameter0.4 in
Rockwell HardnessC43 to C50
ApplicationFor Metal
Helical Insert TypeScrew-Locking
Overall Length5/8 in
Thread DirectionRight Hand
MaterialStainless Steel
FinishBright (Uncoated)
Compatible MaterialMetal
Drill Bit Size21/64 in
Tensile Strength200,000 psi
Industry StandardsMS21209-C5-20, NASM21209-C5-20
SeriesPowerCoil
Product TypeHelical Insert
Country of OriginUnited Kingdom
(subject to change)