Name: Willrich Precision Instrument Company, Inc
Address: 80 Broadway, Cresskill, NJ, 07626, United States
Telephone: 866-945-5742

Thread Plugs Gages & Thread Ring Gages Inch and Metric – Unified

Willrich Precision offers Thread Plug Gages and Thread Ring Gages. We offer inch and metric thread gages in both standard and special PDs. Rush Delivery prices available upon request.

When Ordering Please Specify:

Nominal Size, threads per inch and thread series
Example: for thread plug gage: 3/8-16 UNC 2B for thread ring:3/8-16 UNC 2A
Type of Gage: Thread Plug, Thread Ring, or Thread setting plug
Right or Left Handed
For Thread Plug Gages under 1.510″ specify if reversible or taperlock is needed
Specify Steel, Chrome or Carbide
Marking instructions- Tool number, gage number
Type of certification needed: short form cert of conformance, long form certification with data to NIST, or ISO-17025

Call or email sizes for pricing Ph 866-945-5742 / email: sales@willrich.com

-or –

Fill out below Quick Quote Form for sizes needed.

Thread Plug Gages

UNC, UNF,UNJ, UNJF, & UNEF
Class 2B – 3B
Taperlock Thread Plugs (Inch & Metric) , Reversible Thread Plugs (Inch&Metric), Trilock
Metric Sizes – Class 6H
Left Hand Thread Plugs
STI Screw Helicoil Thread Insert
Material offered: Steel, Chrome, Carbide, Titanium Nitride (TiN) coating
Setting “X” and “W” tolerance
Hi Lo Thread Plug Gages
Truncated Thread Setting Plug Gages Class 2A – 3A + Metric Sizes – Class 6g- Hi Lo Thread Plugs

Thread Ring Gages

UNC, UNF & UNEF
Class 2A – 3A
Adjustable Thread Rings (Inch&Metric)
Solid Type Thread Rings (Inch&Metric)
Metric Sizes – Class 6g
Material offered: Steel, Chrome
Class X Tolerance
Left Handed Thread Ring Gages

In ISO. metric threads the various classes of internal thread are 4H, 5H, 6H & 7H’. In Unified threads the various classes of internal threads are 1B, 2B & 3B. Whitworth and B.A. the various classes of thread are Close, Medium and Normal. Please contact us for any other thread form you may require.

Thread plug Gauge and Thread Ring Gauge Standards:

AGD American Gage Designed. ASME/ANSI B47.1.
ANSI American National Standards Institute
DIN German Specifications
JIS Japanese Industrial Standard
ISO International Standard Organization

UN, UNC, UNF, UNEF, UNS Unified Inch Screw Threads (Un and UNR Form)
Gages & Gaging for Unified Inch Screw Threads

UNJ, UNJC, UNJF, UNJEF, UNJS Unified Inch Screw Threads (UNJ Thread Form)
Screw Thread Gaging Systems for Acceptability-Inch and Metric Screw Threads (UN, UNR, UNJ, M and MJ)

M Metric Screw Threads — M Profile Gages and Gaging for Metric M Screw Threads

MJ Metric Screw Threads — MJ Profile Gages and Gaging for MJ Series Metric Screw Threads

UNM Unified Miniature Screw Threads

Thread Plug Gage Educational

Thread Ring Gage Educaitonal

Metric Thread Gages Educational

Thread Setting Plug Educational