Core rod material must be non-magnetic, preferably any 300 series (18-8) stainless steel. Other suitable rod materials include titanium, fiberglass, unplated plastics, and carbon-fiber composites. Avoid highly conductive materials like aluminum or brass, because eddy currents induced in them could affect LVDT performance.

Thread 18-8 stainless steel socket set screw (SS) into tapped hole "TT" with Loctite, then thread set screw thread projecting from core rod assembly into LVDT core.

All dimensions in inches; external threads are class 2A; internal threads are class 2B.

Connection / adjustment length "LL" is selected to suit the LVDT installation.

Minimum unthreaded rod length "L" is derived from the formula below:

L=N+R-C/2

Where:

"N" is the null point of the LVDT from its data sheet or table below.
"R" is the range of the LVDT depicted in its model number.
"C" is the length of the LVDT core from its data sheet
"H" is the length of the LVDT case from its data sheet.

Diameter “D”, Threads “T” and “TT”, and Null Point “N” are from the table below:

 

LVDT Series	Rod Diameter (nom)		Thread	Tapping*	Set Screw	Null
	D	D	T	TT	SS	N
CD 375	0.110	7/64	4-40 UNC	1-72 UNF	1-72 X 3/8	1/2 H
DC 750	0.188	3/16	10-32 UNF	4-40 UNC	4-40 X 5/8	DATA
E 750	0.188	3/16	10-32 UNF	4-40 UNC	4-40 X 5/8	1/2 H
HLR 750	0.188	3/16	10-32 UNF	4-40 UNC	4-40 X 5/8	DATA
HSA 750	0.188	3/16	10-32 UNF	4-40 UNC	4-40 X 5/8	DATA
HSTA 750	0.188	3/16	10-32 UNF	4-40 UNC	4-40 X 5/8	DATA
HSAR 750	0.188	3/16	10-32 UNF	4-40 UNC	4-40 X 5/8	DATA
HSTAR 750	0.188	3/16	10-32 UNF	4-40 UNC	4-40 X 5/8	DATA
HSD 750	0.188	3/16	10-32 UNF	4-40 UNC	4-40 X 5/8	DATA
HSI 750	0.188	3/16	10-32 UNF	4-40 UNC	4-40 X 5/8	DATA
HSDR 750	0.188	3/16	10-32 UNF	4-40 UNC	4-40 X 5/8	DATA
HSI 750	0.188	3/16	10-32 UNF	4-40 UNC	4-40 X 5/8	Call Factory
PR 750	0.250	1/4	1/4-28 UNF	6-40 UNF	6-40 X 5/8	DATA
HT 750	0.250	1/4	1/4-28 UNF	6-40 UNF	6-40 X 5/8	DATA
PR 812	0.250	1/4	1/4-28 UNF	6-40 UNF	6-40 X 5/8	DATA
PRDC 812	0.250	1/4	1/4-28 UNF	6-40 UNF	6-40 X 5/8	Call Factory
PRH 812	0.250	1/4	1/4-28 UNF	6-40 UNF	6-40 X 5/8	1/2 H
PRS 812	0.250	1/4	1/4-28 UNF	6-40 UNF	6-40 X 5/8	1/2 H
PTI 750	0.188	3/16	10-32 UNF	4-40 UNC	4-40 X 5/8	DATA
SQ 500	0.110	7/64	4-40 UNC	1-72 UNF	1-72 X 3/8	1/2 H
SQ 1250	0.250	1/4	1/4-28 UNF	6-40 UNF	6-40 X 5/8	DATA
* For class 2 threads, 1-72 tap drill: #53; 4-40 tap drill: #44; 6-40 tap drill: #34