TA8 Thermocouple Catalog Page

Adjustable Bolt Spring Thermocouples
(Series TA8)

Ordering Information

Configure this style to request a quote or call for assistance

Part No.:

select options

Start Here

Sheath Diameter
Sheath Length
Lead Wire Material
Lead Wire Length
Screw/Spring Style
Termination Style
Special Features

2 Calibration
J Type J
K Type K
T Type T
E Type E

3 Sheath Diameter
G 0.118" (3mm)
H 0.125" (3.2mm) (1/8")
J 0.156" (4mm)
L 0.188" (4.8mm) (3/16") (standard)
M 0.236" (6mm)
N 0.250" (6.4mm) (1/4")
P 0.314" (8mm) (5/16")
  Sizes for reference only (Standard tolerances apply)
  For other diameters consult factory

4 Sheath Length
R 1/4"
S 3/8" (Standard)
W 1/2"
X 5/8"
Y 3/4"
Z 1"
H 1.25"
P 1.5"
Q 1.75"
T 2"

5 Junction
G Grounded (standard)
U Ungrounded
W Grounded (Dual Junction)
Y Ungrounded Common (Dual)

6 Lead Wire Material
A Fiberglass (800°F)
B Fluoropolymer (400°F)
C Polyimide (500°F)
E High temperature fiberglass (1200°F)
F Fiberglass with stainless steel braid (800°F) (standard)
G Fluoropolymer with stainless steel braid (400°F)
  Wire gauge determined by ECS based on sheath diameter. For special requirements consult factory

7 Lead Wire Length
  Over 960" contact factory

8 Screw/Spring Style
A 1/8”NPT screw/ 1/4”OD x 10” spring
B M12X1.75 screw / 1/4”OD x 10” spring
C 1/8”NPT screw/ / 1/4”OD x 6” spring
D M12X1.75 screw / 1/4”OD x 6” spring
  Longer springs available. Consult factory

9 Termination Style
A 2" stripped leads (bare ends)
B 2" stripped leads w/ spade lugs
C Standard male plug (400°F)
D High temp male plug (660°F)
E Max temp male plug (800°F)
G Solid pin plug
H Standard female jack (400°F)
J Miniature plug (400°F)
K Miniature jack (400°F)
L 2" stripped leads w/ #6 Ring terminals
N Standard 3 pin plug w/ ground wire (400°F)
P Dual molded male plug (400°F)
W 2” stripped leads w/ pin terminals
Q 2” stripped leads w/ wire ferrules


Extra long lead wire length (beyond 2” stripped leads)

10 Special Features
01 Solid conductor (Lead wire)
04 Flat tip probe
05 Drill point tip
06 Epoxy seal
07 Cable Clamp
08 Bx Connector
09 Mating connector
11 International IEC 584-3 color coded leads
12 British color coded leads
13 German color coded leads
14 Japanese color coded leads
15 Reverse polarity color coded leads
16 French color coded leads
18 Moisture protection boot on connector
20 Add ground wire to TC & RTD
29 Silver solder thermocouple junction
  • Bolt spins over entire length of spring
  • Spring has an OD of 0.254"
  • 20 AWG stranded wire comes standard for 0.156" and larger
  • 24 AWG stranded wire comes standard for 0.125" and 0.118"