Contact Points

Gagemaker manufactures a variety of contact points, from traditional ball contacts to roller contacts to blade contacts. Our standard ball contact points are made with carbide balls. Both threaded and straight (non-threaded) shanks are available. All Gagemaker’s inspection gages use threaded shank contact points. Threaded shanks are #4-48 UNF.

Metric threads are available upon request. Most gages require two contact points. Custom sizes or designs are available.

Gagemaker-Threaded-Shank-Contact-Points
Threaded Shank Contact Points
Gagemaker-Straight-Shank-Contact-Points
Straight Shank Contact Points

Gagemaker’s standard contact points are manufactured with carbide balls. Both threaded and straight (non-threaded) shanks are available. All Gagemaker’s inspection gages use threaded shank contact points. Threaded shanks are #4-48 UNF. Metric threads are available upon request. Most gages require two contact points.

Connection TypeThreads Per Inch (TPI)Point DiameterStraight Shank ModelThreaded Shank Model
Hughes Slimline H-903.235"S235T235
Hughes H-90.200"S200T200
API Rotary Shouldered Connections4.144"S144T144
API Rotary Shouldered Connections.128"S128T128
API Rotary Shouldered Connections5.115"S115T115
Extreme Line.105"S105TT105T
API Rotary Shouldered Connections6.096"S096T096
Buttress Casing - Taper5.090"S090T090
API Tubing & Casing (8 Round)8.072"S072T072
Buttress Casing - Lead5.062"S062T062
API Tubing (10 Round) & Line Pipe10.057"S057T057
API Line Pipe5.050"S050T050
API Rotary Shouldered Connections - Thread Depth Only10.044"S044T044
API Line Pipe11½.041"S041T041
API Rotary Shouldered Connections - Thread Depth Only5.034"-T034
API Line Pipe18.032"S032T032
API Line Pipe27.021"S021T021
 Gage(s)DecsriptionModel
T500CTH-3001V, TH-3002V, & TH-3004 50° cone contact point, "V" threads for TH-3001V, TH-3002V, and TH-3004 gages T500C
BR-2001, TH-3000-USS & TH-3010-USSNarrow cone contact point for Buttress Runout and USS Improved Buttress Thread Height GagesTBR
T501TH-3001R & TH-3002R50° cone contact point, "V" threads for TH-3001R & TH-3002R gages T501
T502-Self-centering sleeve for T501 & T503 contact pointsT502
T503TH-300650° cone contact point, "V" threads for TH-3006 gageT503
Eline-.063" R Extreme Line contact pointE-Line
PD-3000 Series.020" R contact point for PD-3003 & PD-3004 gagesTPD
-Point extensions, available in : .300", .500", .750", & 1.00" (Ex. PE-300)PE-___
-45° Point Adapter, contact point not includedPA-45
Gagemaker-RC-375-roller-contactSG-8001.375" Roller contactRC-375
P500TH-3001RFlat face contact point for TH-3001RP-500
PD-3000 Series.250" Depth Blade Point- .008" thickness, .170" diameterBlade-25
PD-3000 Series.500" Depth Blade Point- .008" thickness, .170" diameterBlade-50

Gagemaker continually develops new application contacts and indicator accessories. The following items are in stock for immediate delivery. These contact points have #4-48 UNF threaded shank. All contact points are carbide. Special and metric diameters are available, please call for quotation. Straight Shanks are available for T060, T098, and T156.

Ball Diameter (Inches)Model
0.28T028
0.43T043
0.45T045
0.59T059
0.60T060
.068T068
.071T071
.086T086
.087T087
.092T092
.098T098
.100T100
.116T116
.118T118
.125T125
.1335T1335
.150T150
.155T155
.156T156
.157T157
.160T160
.165T165
.176T176
.188T188
.219T219
.250T250
.266T266
.295T295
.300T300
.325T325
.344T344
.350T350
.360T360
.375T375
.430T430
.4375T4375
.475T475
.500T500
.531T531
.625T625
.750T750

Contact Points for Straight Threads by Thread Type

These truncated contact points are used to inspect the pitch diameter of machined parts with 29° Acme , Stub ACME, Stub ACME Modified-1,  and Stub ACME Modified-2 thread forms. Two are required for most gages.

PitchModel
1T531T
T344T
2T266T
T219T
3T188T
T144T
4T128T
5T105T
6 & 7T090T
8T062T
10T050T
12 & 14T041T
16T032T

These contact points are used to inspect the pitch diameter of machined parts with ISO Metric 60° “V” thread forms. Two are required for most gages.

Pitch in millimetersModel
4T096
3 & 3½T072
T057
1½, 1¾, & 2T041

These contact points are used to inspect the millimeter pitch diameter of machined parts with Trapezoidal thread forms. Two are required for most gages.

Pitch in millimetersModel
7T144
6T125
5T096
4T082
T072
3T062
T050
2T041
T032

These contact points are used to inspect the pitch diameter of machined parts with 60° “V” thread forms. Two are required for most gages.

PitchModel
1T562
2T288
3 & 3½T188
4T144
T128
5T115
T105
6T096
8T072
10T057
11½ & 12T050
14 & 16T041
18T032

These contact points are used to inspect the pitch diameter of machined parts with 7° X 45° Buttress thread forms. Two are required for most gages.

PitchModel
1T562
T437
T375
2T281
T219
3T188
T156
4T144
5T115
6T096
8T072
10T057
12T050
16 & 18T032