Threading Inserts

Precision
Threading Inserts

Full-profile and partial-profile threading inserts for internal and external threads. Available in ISO metric, UN, BSP, NPT, and BSPT profiles with precision-ground thread forms for accurate pitch.

Full-profile and partial-profile options
ISO Metric, UN, Whitworth, and pipe thread profiles
Precision-ground thread form for accurate pitch
PVD coated for extended life in steel and stainless
Available in 16ER/IR and 22ER/IR sizes

Thread
Every Profile

Steel (P)
Stainless (M)
Cast Iron (K)

All Profiles

Complete range of ISO Metric, UN, BSP, NPT, and BSPT thread profiles.

MetricUNBSPNPT

Precision Ground

Ground thread form ensures accurate pitch and profile conformance.

6g/6HAccurate

Full & Partial

Choose full-profile for single-pitch or partial-profile for versatility.

FullPartial

Long Tool Life

PVD coating and tough substrate deliver consistent thread quality.

PVDTough

Popular Inventory Grades

ModelProfilePitch RangeSizeTypeCoating
16ER-1.5ISO-CFISO Metric1.5mm16ERExternalPVD
16IR-1.5ISO-CFISO Metric1.5mm16IRInternalPVD
16ER-14UN-CFUN14 TPI16ERExternalPVD
16ER-14BSPT-CFBSPT14 TPI16ERExternalPVD
22ER-4.0ISO-CFISO Metric4.0mm22ERExternalPVD

Need the Full Specifications?

Download our complete Threading Inserts catalog including detailed chip-breaker diagrams, cutting speed charts, and grade recommendations.

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