SIZE 

Dia. 

(D)

Ins. Width 

(C)

Ins. Length 

(L)

Thd 

(T)

Plain 

Zinc Plt 

HDG 

304 SST 

316 SST 

HDG Poly-Coated 

1/4 x 1/4

1/4"

9/16"

3 1/8"

2 3/8"

UBL1

UPL1

UGL1

1/4 x 3/8

1/4"

3/4"

3 5/16"

2 3/8"

UBL2

UPL2

UGL2

1/4 x 1/2

1/4"

15/16"

3 5/16"

2 3/8"

UBL3

UPL3

UGL3

USL3

U3L3

UGN3

1/4 x 3/4

1/4"

1 1/8"

3 7/16"

2 3/8"

UBL4

UPL4

UGL4

USL4

U3L4

UGN4

1/4 x 1

1/4"

1 3/8"

3 1/2"

2 3/8"

UBL5

UPL5

UGL5

USL5

U3L5

UGN5

3/8 x 3/4

3/8"

1 1/8"

3 7/16"

2 3/8"

UBL20

UPL20

UGL20

USL20

3/8 x 1

3/8"

1 3/8"

3 9/16"

2 3/8"

UBL21

UPL21

UGL21

USL21

U3L21

UGN21

3/8 x 1 1/4

3/8"

1 3/4"

3 3/4"

2 1/2"

UBL22

UPL22

UGL22

USL22

U3L22

UGN22

3/8 x 1 1/2

3/8"

2"

4"

2 1/2"

UBL23

UPL23

UGL23

USL23

U3L23

UGN23

3/8 x 2

3/8"

2 7/16"

4 9/16"

2 1/2"

UBL24

UPL24

UGL24

USL24

U3L24

UGN24

1/2 x 2

1/2"

2 7/16"

4 5/8"

2 1/2"

UBL37

UPL37

UGL37

USL37

1/2 x 2 1/2

1/2"

3"

5 3/16"

3"

UBL38

UPL38

UGL38

USL38

U3L38

UGN38

1/2 x 3

1/2"

3 5/8"

5 3/4"

3"

UBL39

UPL39

UGL39

USL39

U3L39

UGN39

1/2 x 3 1/2

1/2"

4"

6 3/8"

3"

UBL40

UPL40

UGL40

UGN40

1/2 x 4

1/2"

4 5/8"

6 3/4"

3"

UBL41

UPL41

UGL41

USL41

U3L41

UGN41

1/2 x 5

1/2"

5 5/8"

8"

3"

UBL43

UPL43

UGL43

USL43

U3L43

UGN43

5/8 x 6

5/8"

6 3/4"

9 7/16"

3 3/4"

UBL51

UPL51

UGL51

USL51

U3L51

UGN51

5/8 x 8

5/8"

8 3/4"

11 7/16"

3 3/4"

UBL52

UPL52

UGL52

USL52

U3L52

UGN52

3/4 x 10

3/4"

10 7/8"

13 3/4"

4"

UBL57

UPL57

UGL57

USL57

U3L57

UGN57

7/8 x 12

7/8"

12 7/8"

16"

4 1/2"

UBL61

UPL61

UGL61

UGN61

7/8 x 14

7/8"

14 1/4"

17 1/4"

4 1/2"

UBL62

UPL62

UGL62

UGN62

7/8 x 16

7/8"

16 1/4"

19 1/4"

4 1/2"

UBL63

UPL63

UGL63

UGN63

1 x 18

1"

18 1/4"

21 5/8"

6"

UBL64

UGL64

1 x 20

1"

20 1/4"

24 5/8"

6"

UBL65

UGL65

1 x 22

1"

22 1/4"

25 5/8"

6"

UBL66

1 x 24

1"

24 1/4"

27 5/8"

6"

UBL67

UGL67

1 x 30

1"

30 1/4"

35"

6"

UBL70

UGL70

1 x 36

1"

36 1/4"

40 1/4"

6"

UBL71

UGL71