MECHANICAL COMPONENTS: Torque Thumb Screws


PN: T1031 (Type A)
PN: T1031 (Type A)
PN: T1031 (Type A)
PN: T103CN (checknut)
PN: T103CN (checknut)
PN: T103CN (checknut)
PN: TS103 (swivel pad)
PN: TS103 (swivel pad)
PN: TS103 (swivel pad)
PN: NTS103 (Delrin swivel pad)
PN: NTS103 (Delrin swivel pad)
PN: NTS103 (Delrin swivel pad)
PN: T125 (Inverted Type B)
PN: T125 (Inverted Type B)
PN: T125 (Inverted Type B)
PN: T150 (Tee Head Type C)
PN: T150 (Tee Head Type C)
PN: T150 (Tee Head Type C)
PN: T198 (Adjustable Type D)
PN: T198 (Adjustable Type D)
PN: T198 (adjustable Type D)

Vlier Torque Thumb Screws provide a variety of holding support including regular, reverse, variable and off-angle support. All Vlier torque thumb screws are provided with a checknut to prevent back-off during operation.

Special Features

  • Controlled End Pressure
  • Checknuts prevent back-off
  • Head ratchets at preset pressure
Type A Dimensions
Swivel Type Dimensions
Type B Dimensions
Type C Dimensions
Type D Dimensions
Checknut Dimensions

Regular - Type A
Vlier Regular (Type A) Torque Thumb Scres offer numerous holding applications in building jigs, fixtures and special tooling.

Part No.
Estimated End Force Lbs.
(in.)
(in.)
(in.)
(in.)
A
B
C
D
T102
8-15
10-32
1-1/4
.47
7/8
T103
9-18
1/4-20
1-3/4
.47
7/8
T1031
9-18
1/4-20
2-1/2
.47
7/8
T103A
10-20
5/16-18
1-3/4
.47
7/8
T103A1
10-20
5/16-18
2-1/4
.47
7/8
T103B
10-20
5/16-18
3
.47
7/8
T104
12-23
3/8-16
1-3/4
.47
7/8
T1041
12-23
3/8-16
2-1/4
.47
7/8
T105
12-23
3/8-16
3
.47
7/8
T106
13-25
1/2-13
1-3/4
.53
1-1/8
T1061
13-25
1/2-13
2-1/4
.53
1-1/8
T107
13-25
1/2-13
3
.53
1-1/8
T1071
13-25
1/2-13
3-1/2
.53
1-1/8
T108
15-28
5/8-11
1-3/4
.53
1-1/8

Swivel Pad Type
Vlier Swivel Pad Torque Thumb Screws combine torque-limiting with a surface-protecting ball bearing swivel pad available in steel or Delrin® to hold off-angle surfaces without marring or damage.

Part No.
Estimated End Force Lbs.
(in.)
(in.)
(in.)
(in.)
Steel Pad
Delrin® Pad
A
B
C
D
TS103 NTS103
9-18
1/4-20
2-1/4
.47
7/8
TS103A NTS103A
10-20
5/16-18
2-1/4
.47
7/8
TS104 NTS104
12-23
3/8-16
2-1/4
.47
7/8
TS107 NTS107
13-25
1/2-13
3
.53
1-1/8

Inverted Type B
Vlier Inverted Torque Thumb Screws (Type B) apply reverse holding support ideal in limited space applications.

Part No.
Estimated End Force Lbs.
(in.)
(in.)
(in.)
(in.)
A
B
C
D
T125
9-18
1/4-20
1-3/4
7/16
7/8
T126
12-23
3/8-16
1-3/4
7/16
7/8
T127
13-25
1/2-13
1-3/4
1/2
1-1/8
T128
15-28
5/8-11
1-3/4
1/2
1-1/8

Tee Head Type C
Vlier Tee Head Torque Thumb Screws (Type C) are ideal where controlled end force and torque are required. Tee head fits part for forward or reverse motion.

Part No.
Estimated End Force Lbs.
(in.)
(in.)
(in.)
(in.)
(in.)
(in.)
A
B
C
D
E
F
T150
13-25
1/4-20
1-3/4
7/16
7/8
0.093
0.184
T151
17-33
3/8-16
1-3/4
7/16
7/8
0.174
0.290
T152
19-35
1/2-13
1-3/4
1/2
1-1/8
0.276
0.396

Vlier Adjustable Torque Thumb Screws (Type D) provide variable holding force with a simple hex wrench adjustment made to the head of the screw.

Part No.
Estimated End Force Lbs.
(in.)
(in.)
(in.)
(in.)
Adjustable Torque Inch Pounds
A
B
C
D
T198
10-125
3/8-16
1-3/4
21/362
1-3/16
3-6
T199
10-125
3/8-16
3
21/362
1-3/16
3-6
T200
10-125
1/2-13
1-3/4
21/362
1-3/16
3-6
T201
10-125
1/2-13
3
21/362
1-3/16
3-6
Part No.
Thread Size
(in.)
(in.)
(in.)
(in.)
A
B
C
D
T102CN
10-32
3/4
7/32
1/2
5/32
T103CN
1/4-20
3/4
7/32
1/2
5/32
T103ACN
5/16-18
3/4
5/16
1/2
1/4
T104CN
3/8-16
3/4
5/16
1/2
1/4
T106CN
1/2-13
1
3/8
3/4
1/4
T108CN
5/8-11
1
3/8
3/4
1/4