Box Protector
Pin Protector

Interdril Heavy Duty Pressed Steel Thread Protectors are fitted to Tubulars and other products to protect threads during transit and storage.

DIMENSIONAL DATA
OD Range
Connection Size and Type
Pin Protector
Wt. (lbs)
Box Protector
Wt. (lbs)
Wt. per set
(lb)
3 1/8– 3 1/2
2 3/8 Reg
NC 26 (2 3/8 IF)

1/2
1
1/2
3/4
1
1 3/4
4 – 4 3/8
NC 31 (2 7/8 IF)
2 7/8 Reg
3 1/2 Reg
1 1/2
1 1/2
1 1/2
1 1/4
1 1/4
1
2 3/4
2 3/4
2 1/2
4 1/2 - 5 1/8
3 1/2 XH
NC 38 (3 1/2 IF)

1 1/2
2 1/4
1 1/4
1 3/4
2 3/4
4
5 1/8 – 5 3/4
3 1/2 FH
NC 40 (4 FH)
1 3/4
2 1/4
1 1/2
2 1/4
3 1/4
4 1/2
5 3/4 - 6 1/4
4 1/2 Reg
4 1/2 FH
2 1/2
2 1/2
1 1/2
2 1/4
4
4 3/4
6 1/4 - 6 3/4
NC 46 (4 IF)
4 1/2 XH
4 1/2 H-90

3
3
3
1 3/4
1 3/4
2
4 3/4
4 3/4
5
6 3/4 - 7 1/2
5 1/2 Reg
NC 50 (4 1/2 IF)
5 XH
3 1/4
3 1/4
3
2
2
2
5 1/4
5 1/2
5
7 3/4 - 8 1/4
5 1/2 FH
6 5/8 Reg
6 5/8 H-90
3 3/4
6 3/4
4 1/4
2 3/4
2 3/4
2 1/4
6 1/2
9 1/2
6 1/2
8 1/4
6 5/8 FH
6 1/2
5
11 1/2
9 – 10
9 – 10
7 5/8 Reg
7 3/4
7 3/4
3 1/2
3 1/2
11 1/4
11 1/4

         All dimensions are in inches unless otherwise specified

When ordering or enquiring, please specify:
1. Connection type, size and if Pin or Box protector is required.