Repute Steel & Engineering Company is a leading manufacturer and supplier of premium stainless steel U bolts, delivering solutions for a wide range of industrial applications. Their products are available in multiple sizes, grades, and specifications to meet the diverse needs of clients worldwide. From Stainless Steel Square U Bolts to specialized SS 316 U Bolts, the company ensures exceptional quality and performance. With the capability to serve global markets, including regions like Australia, Repute Steel prides itself on timely delivery, optimal order sizes, and customer-centric service.
The specialty of stainless steel U bolts lies in their unique design, featuring screw threads on both ends of the U-shaped rod. These bolts are extensively used to secure pipelines, metal frames, and concrete structures in place. Repute Steel's product range includes Stainless Steel Square U Bolts, crafted from top-grade materials like SS 304 and SS 316. While SS 304 U Bolts are a cost-effective choice offering excellent strength and corrosion resistance, SS 316 U Bolts are preferred for their enhanced durability and superior resistance to harsh chemicals and marine environments. The company provides a wide selection of sizes, including 4-inch Stainless Steel U Bolts, tailored to meet specific project requirements.
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U Bolts Specification List
| Stainless Steel U Bolts Size | Stainless Steel U Bolts M2, M3, (M3.5), M4, M5, M6, M8, M10, M12, (M14), M16, (M18), M20, (M22), M24, (M27), M30, M33, M36, M42, (M45), M48 to M160 and Custom Sizes |
|---|---|
| Grade |
18-8 Stainless Steel, 4.8, 8.8, A2, A4, A2-70; A4-70;
A4-80 U Bolts
|
| British standards | BS6105 (old: BSENISO 3506) which covers Part 1 bolts, screw and Us, part 2 nuts and part 4 tapping screws. |
| DIN Standard | B.S. DIN 933, DIN 931, DIN 934, DIN 912, DIN 603, DIN 6923, DIN 970, DIN 7981, DIN 7982, DIN916, DIN 913, DIN 7985 |
| ISO – International Organization for Standardization | ISO 4032, ISO 4033, ISO 4017, ISO7380 JIS standards |
| Length | 3 mm to 200 mm |
| Stainless Steel Bolts, Us Threads: | METRIC, BSW, BSF, UNC, UNF or as required |
| Dimensions | ASME B18.6.3 **Exception: screws 6 inches and shorter are fully threaded. |
| Head drive: | Phillips, Slotted, Phillips/Slot, Six-Lobe, etc |
Technical Specification
Item: U-Bolt
Type: Round
Material: Stainless Steel
Finish:Stainless
Thread Size:5/16"
Thread Length:2-1/16"
Inside Length:4-1/2"
Length (In.):4-1/2
Dimensions of A4 U Bolts
|
Size
(B x C) |
Thread Length
(D) |
Fits Pipe Size
|
||
|---|---|---|---|---|
|
1/4 inch-20 (A)
|
||||
|
9/16 inch
|
x
|
1-3/8 inch
|
3/4 inch
|
1/4 inch
|
|
3/4 inch
|
x
|
1-1/4 inch
|
3/4 inch
|
3/8 inch
|
|
3/4 inch
|
x
|
1-3/4 inch
|
1 inch
|
3/8 inch
|
|
3/4 inch
|
x
|
2-3/4 inch
|
2 inch
|
3/8 inch
|
|
3/4 inch
|
x
|
4-3/4 inch
|
4 inch
|
3/8 inch
|
|
1 inch
|
x
|
1-3/4 inch
|
1 inch
|
1/2 inch
|
|
1-1/8 inch
|
x
|
2-1/4 inch
|
1-1/4 inch
|
3/4 inch
|
|
1-1/8 inch
|
x
|
3-1/2 inch
|
2-3/4 inch
|
3/4 inch
|
|
1-3/8 inch
|
x
|
2-3/4 inch
|
1-3/4 inch
|
1 inch
|
|
1-3/4 inch
|
x
|
2-3/4 inch
|
1-1/4 inch
|
1-1/4 inch
|
|
2 inch
|
x
|
3-1/2 inch
|
1-3/4 inch
|
1-1/2 inch
|
|
5/16 inch-18 (A)
|
||||
|
1-3/8 inch
|
x
|
2-1/2 inch
|
1-1/4 inch
|
1 inch
|
|
1-3/8 inch
|
x
|
3-3/4 inch
|
2-1/8 inch
|
1 inch
|
|
1-3/4 inch
|
x
|
3 inch
|
1-1/2 inch
|
1-1/4 inch
|
|
1-3/4 inch
|
x
|
4-1/4 inch
|
2-1/2 inch
|
1-1/4 inch
|
|
2 inch
|
x
|
3-1/4 inch
|
1-1/2 inch
|
1-1/2 inch
|
|
2 inch
|
x
|
3-11/16 inch
|
2 inch
|
1-1/2 inch
|
|
2 inch
|
x
|
4-11/16 inch
|
2-3/4 inch
|
1-1/2 inch
|
|
2-1/2 inch
|
x
|
3-1/2 inch
|
1-1/2 inch
|
2 inch
|
|
2-1/2 inch
|
x
|
4-3/16 inch
|
2-1/4 inch
|
2 inch
|
|
2-1/2 inch
|
x
|
5-3/16 inch
|
3 inch
|
2 inch
|
|
3/8 inch-16 (A)
|
||||
|
2 inch
|
x
|
3-1/8 inch
|
1-1/2 inch
|
1-1/2 inch
|
|
2-1/2 inch
|
x
|
3-5/8 inch
|
1-3/4 inch
|
2 inch
|
|
3 inch
|
x
|
4-1/8 inch
|
1-3/4 inch
|
2-1/2 inch
|
|
3-1/2 inch
|
x
|
4-5/8 inch
|
2 inch
|
3 inch
|
|
3-1/2 inch
|
x
|
6-1/2 inch
|
3 inch
|
3 inch
|
|
1/2 inch-13 (A)
|
||||
|
3 inch
|
x
|
5 inch
|
2-1/2 inch
|
2-1/2 inch
|
|
3-1/2 inch
|
x
|
5-1/2 inch
|
2-1/2 inch
|
3 inch
|
|
4 inch
|
x
|
6 inch
|
2-1/2 inch
|
3-1/2 inch
|
|
4-1/2 inch
|
x
|
6-1/2 inch
|
2-1/2 inch
|
4 inch
|
Weight Of A193 B8T U Bolts
|
A
(SIZE) |
THREAD
|
B
|
C
|
D
|
PIPE
|
WLL
(LB) |
WT
(LB) |
|---|---|---|---|---|---|---|---|
|
1/4 inch
|
1/4″-20
|
0.75″
|
0.63″
|
1.25″
|
3/8″
|
435
|
0.05
|
|
1/4 inch
|
1/4″-20
|
1.00″
|
1.00″
|
1.75″
|
1/2″
|
435
|
0.06
|
|
1/4 inch
|
1/4″-20
|
1.13″
|
1.00″
|
2.00″
|
3/4″
|
435
|
0.07
|
|
1/4 inch
|
1/4″-20
|
1.50″
|
1.38″
|
2.75″
|
1″
|
435
|
0.08
|
|
1/4 inch
|
1/4″-20
|
1.75″
|
1.38″
|
3.00″
|
1-1/4″
|
435
|
0.09
|
|
1/4 inch
|
1/4″-20
|
2.00″
|
1.38″
|
3.25″
|
1-1/2″
|
435
|
0.10
|
|
5/16 inch
|
5/16″-18
|
1.00″
|
1.38″
|
2.19″
|
1/2″
|
610
|
0.11
|
|
5/16 inch
|
5/16″-18
|
1.50″
|
1.00″
|
2.19″
|
1″
|
610
|
0.12
|
|
5/16 inch
|
5/16″-18
|
1.75″
|
1.13″
|
2.69″
|
1-1/4″
|
610
|
0.14
|
|
5/16 inch
|
5/16″-18
|
2.00″
|
1.00″
|
2.69″
|
1-1/2″
|
610
|
0.15
|
|
5/16 inch
|
5/16″-18
|
2.50″
|
1.00″
|
3.19″
|
2″
|
610
|
0.16
|
|
5/16 inch
|
5/16″-18
|
3.00″
|
1.00″
|
3.69″
|
2-1/2″
|
610
|
0.18
|
|
3/8 inch
|
3/8″-16
|
1.00″
|
1.25″
|
2.25″
|
1/2″
|
1,090
|
0.17
|
|
3/8 inch
|
3/8″-16
|
1.25″
|
1.25″
|
2.25″
|
3/4″
|
1,090
|
0.17
|
|
3/8 inch
|
3/8″-16
|
1.50″
|
1.25″
|
2.50″
|
1″
|
1,090
|
0.18
|
|
3/8 inch
|
3/8″-16
|
1.75″
|
1.25″
|
2.75″
|
1-1/4″
|
1,090
|
0.20
|
|
3/8 inch
|
3/8″-16
|
2.00″
|
1.25″
|
2.63″
|
1-1/2″
|
1,090
|
0.20
|
|
3/8 inch
|
3/8″-16
|
2.50″
|
1.25″
|
3.13″
|
2″
|
1,090
|
0.23
|
|
3/8 inch
|
3/8″-16
|
3.00″
|
1.25″
|
3.63″
|
2-1/2″
|
1,090
|
0.27
|
|
3/8 inch
|
3/8″-16
|
3.50″
|
1.25″
|
4.13″
|
3″
|
1,090
|
0.30
|
|
1/2 inch
|
1/2″-13
|
3.00″
|
1.63″
|
4.50″
|
2-1/2″
|
2,020
|
0.59
|
|
1/2 inch
|
1/2″-13
|
3.50″
|
1.50″
|
5.00″
|
3″
|
2,020
|
0.65
|
|
1/2 inch
|
1/2″-13
|
4.00″
|
1.50″
|
5.50″
|
3-1/2″
|
2,020
|
0.69
|
|
1/2 inch
|
1/2″-13
|
4.50″
|
1.50″
|
6.00″
|
4″
|
2,020
|
0.76
|
|
1/2 inch
|
1/2″-13
|
5.63″
|
2.00″
|
7.25″
|
5″
|
2,020
|
0.93
|
|
1/2 inch
|
1/2″-13
|
6.75″
|
2.00″
|
8.38″
|
6″
|
2,020
|
1.04
|
|
1/2 inch
|
1/2″-13
|
8.75″
|
2.00″
|
10.38″
|
8″
|
2,020
|
1.27
|