Dale Company
Top U-Bolt Manufacturer Since 1959

The Dale Company is a leading manufacturer of long tangent U-bolts Fig 137 for industrial applications. We offer standard size and custom long tangent U-bolts at competitive prices, with quick turnaround and same-day shipping for many products.

Long tangent U-bolts Fig 137 have two threaded legs extending from a u-shaped base. The longer legs are used to mount pipe to structural material or thick flanges. The longer thread allows the bolt to be tightened against the pipe diameter, or leave a gap between the pipe and bolt if required.  The bolts are specified by thread diameter and pipe diameter to provide the length and threading required for a secure join. Our Pro-Coat U-Bolts™ offer a corrosion-resistant, low friction bolt that protects the pipe coating and performs well in harsh environments.

We offer standard sizes for ¼” to 36” pipe, as well as custom sizes and threading to meet your specific application requirements. Materials and finishes available for The Dale Company’s long tangent U-bolts include:

  • Long Tangent U-Bolts Fig. 137Zinc-plated steel
  • 304 and 316 stainless steel
  • Teflon® Blue
  • Plain finish
  • Hot dipped galvanized
  • Hot dipped galvanized Pro-Coat™
  • SermaGard®
SKUDiameterInside WidthInside LengthFinish
ubl641"18 1/4"21 5/8"Standard
ugl641"18 1/4"21 5/8"Hot Dip Galvanized
SG641"18 1/4"21 5/8"SermaGard™
ubl651"20 1/4"24 5/8"Standard
UGL651"20 1/4"24 5/8"Hot Dip Galvanized
SG651"20 1/4"24 5/8"SermaGard™
ubl661"22 1/4"25 5/8"Standard
ubl671"24 1/4"27 5/8"Standard
ugl671"24 1/4"27 5/8"Hot Dip Galvanized
SG671"24 1/4"27 5/8"SermaGard™
ubl701"30 1/4"35"Standard
ugl701"30 1/4"35"Hot Dip Galvanized
ubl711"36 1/4"40 1/4"Standard
ugl711"36 1/4"40 1/4"Hot Dip Galvanized
usl381/2″3"5 3/16"
u3l381/2″3"5 3/16"
ubl381/2″3"5 3/16"Standard
ugl381/2″3"5 3/16"Hot Dip Galvanized
upl381/2″3"5 3/16"Zinc Plated
usl371/2″2 7/16"4 5/8"
ubl371/2″2 7/16"4 5/8"Standard
ugl371/2″2 7/16"4 5/8"Hot Dip Galvanized
upl371/2″2 7/16"4 5/8"Zinc Plated
ubl401/2″4"6 3/8"Standard
ugl401/2″4"6 3/8"Hot Dip Galvanized
upl401/2″4"6 3/8"Zinc Plated
usl391/2″3 5/8"5 3/4"
u3l391/2″3 5/8"5 3/4"
ubl391/2″3 5/8"5 3/4"Standard
ugl391/2″3 5/8"5 3/4"Hot Dip Galvanized
xl391/2″3 5/8"5 3/4"PTFE Coated – Blue
SG391/2″3 5/8"5 3/4"SermaGard™
upl391/2″3 5/8"5 3/4"Zinc Plated
usl411/2″4 5/8"6 3/4"
u3l411/2″4 5/8"6 3/4"
ubl411/2″4 5/8"6 3/4"Standard
ugl411/2″4 5/8"6 3/4"Hot Dip Galvanized
xl411/2″4 5/8"6 3/4"PTFE Coated – Blue
SG411/2″4 5/8"6 3/4"SermaGard™
upl411/2″4 5/8"6 3/4"Zinc Plated
usl431/2″5 5/8"8"
u3l431/2″5 5/8"8"
ubl431/2″5 5/8"8"Standard
ugl431/2″5 5/8"8"Hot Dip Galvanized
upl431/2″5 5/8"8"Zinc Plated
usl51/4″1 3/8"3 1/2"
u3l51/4″1 3/8"3 1/2"
ubl51/4″1 3/8"3 1/2"Standard
ugl51/4″1 3/8"3 1/2"Hot Dip Galvanized
xl51/4″1 3/8"3 1/2"PTFE Coated – Blue
upl51/4″1 3/8"3 1/2"Zinc Plated
usl31/4″15/16"3 5/16"
u3l31/4″15/16"3 5/16"
ubl31/4″15/16"3 5/16"Standard
ugl31/4″15/16"3 5/16"Hot Dip Galvanized
xl31/4″15/16"3 5/16"PTFE Coated – Blue
upl31/4″15/16"3 5/16"Zinc Plated
ubl11/4″9/16"3 1/8"Standard
ugl11/4″9/16"3 1/8"Hot Dip Galvanized
upl11/4″9/16"3 1/8"Zinc Plated
usl41/4″1 1/8"3 7/16"
u3l41/4″1 1/8"3 7/16"
ubl41/4″1 1/8"3 7/16"Standard
ugl41/4″1 1/8"3 7/16"Hot Dip Galvanized
xl41/4″1 1/8"3 7/16"PTFE Coated – Blue
upl41/4″1 1/8"3 7/16"Zinc Plated
ubl21/4″3/4"3 5/16"Standard
ugl21/4″3/4"3 5/16"Hot Dip Galvanized
upl21/4″3/4"3 5/16"Zinc Plated
usl573/4"10 7/8"13 3/4"
u3l573/4"10 7/8"13 3/4"
ubl573/4"10 7/8"13 3/4"Standard
ugl573/4"10 7/8"13 3/4"Hot Dip Galvanized
xl573/4"10 7/8"13 3/4"PTFE Coated – Blue
SG573/4"10 7/8"13 3/4"SermaGard™
upl573/4"10 7/8"13 3/4"Zinc Plated
usl233/8"2"4"
u3l233/8"2"4"
ubl233/8"2"4"Standard
ugl233/8"2"4"Hot Dip Galvanized
xl233/8"2"4"PTFE Coated – Blue
SG233/8"2"4"SermaGard™
upl233/8"2"4"Zinc Plated
usl223/8"1 3/4"3 3/4"
u3l223/8"1 3/4"3 3/4"
ubl223/8"1 3/4"3 3/4"Standard
ugl223/8"1 3/4"3 3/4"Hot Dip Galvanized
xl223/8"1 3/4"3 3/4"PTFE Coated – Blue
upl223/8"1 3/4"3 3/4"Zinc Plated
usl213/8"1 3/8"3 9/16"
u3l213/8"1 3/8"3 9/16"
ubl213/8"1 3/8"3 9/16"Standard
ugl213/8"1 3/8"3 9/16"Hot Dip Galvanized
xl213/8"1 3/8"3 9/16"PTFE Coated – Blue
SG213/8"1 3/8"3 9/16"SermaGard™
upl213/8"1 3/8"3 9/16"Zinc Plated
usl243/8"2 7/16"4 9/16"
u3l243/8"2 7/16"4 9/16"
ubl243/8"2 7/16"4 9/16"Standard
ugl243/8"2 7/16"4 9/16"Hot Dip Galvanized
xl243/8"2 7/16"4 9/16"PTFE Coated – Blue
SG243/8"2 7/16"4 9/16"SermaGard™
upl243/8"2 7/16"4 9/16"Zinc Plated
usl203/8"1 1/8"3 7/16"
ubl203/8"1 1/8"3 7/16"Standard
ugl203/8"1 1/8"3 7/16"Hot Dip Galvanized
upl203/8"1 1/8"3 7/16"Zinc Plated
usl515/8"6 3/4"9 7/16"
u3l515/8"6 3/4"9 7/16"
ubl515/8"6 3/4"9 7/16"Standard
ugl515/8"6 3/4"9 7/16"Hot Dip Galvanized
xl515/8"6 3/4"9 7/16"PTFE Coated – Blue
SG515/8"6 3/4"9 7/16"SermaGard™
upl515/8"6 3/4"9 7/16"Zinc Plated
usl525/8"8 3/4"11 7/16"
u3l525/8"8 3/4"11 7/16"
ubl525/8"8 3/4"11 7/16"Standard
ugl525/8"8 3/4"11 7/16"Hot Dip Galvanized
xl525/8"8 3/4"11 7/16"PTFE Coated – Blue
SG525/8"8 3/4"11 7/16"SermaGard™
upl525/8"8 3/4"11 7/16"Zinc Plated
ubl617/8"12 7/8"16"Standard
ugl617/8"12 7/8"16"Hot Dip Galvanized
xl617/8"12 7/8"16"PTFE Coated – Blue
SG617/8"12 7/8"16"SermaGard™
upl617/8"12 7/8"16"Zinc Plated
ubl627/8"14 1/4"17 1/4"Standard
ugl627/8"14 1/4"17 1/4"Hot Dip Galvanized
xl627/8"14 1/4"17 1/4"PTFE Coated – Blue
upl627/8"14 1/4"17 1/4"Zinc Plated
ubl637/8"16 1/4"19 1/4"Standard
ugl637/8"16 1/4"19 1/4"Hot Dip Galvanized
xl637/8"16 1/4"19 1/4"PTFE Coated – Blue
SG637/8"16 1/4"19 1/4"SermaGard™
upl637/8"16 1/4"19 1/4"Zinc Plated

Long Tangent U-Bolts Chart

SIZE Dia.
(D)
Ins. Width
(C)
Ins. Length
(L)
Thd
(T)
Plain Zinc Plt HDG 304 SST 316 SST HDG 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