Birmingham Fastener

Birmingham Fastener is a leading manufacturer and distributor of bolts and fasteners. We provide quick service and free quotes.

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Flange Head Drill with Washer Information and Size Chart

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These screws are designed for fastening metal wall and roof panels used in metal construction. Flange heads are designed to encapsulate EPDM washers, providing a secure seal. Fastener head design includes nutsetter ledge for better drivability. These screws are available in 25 standard colors or custom matched to your specific needs. Download a list of our standard colors, or contact our sales team to discuss how we can create custom colors.

NOTE: Self drilling screws should NEVER be installed with an impact tool and should NEVER exceed 2500 RPMs. Impacts can damge paint and compromise the integrity of the screw.

Flange Head Drill with Washer Size Chart

*Note: Our #2 PT 12 x 1-1/4 screws are long pilot point. These allow drilling process to complete before the thread is engaged.*
Size Threads per Inch Drill Point Drive Carton Qty.
#1/4 x 7/8 14 #1 PT 5/16″ 2,500
12 x 1-1/4 14 #2 PT Long Pilot* 5/16″ 2,500
12 x 3/4 14 #3 PT 5/16″ 2,500
12 x 1 14 #3 PT 5/16″ 2,500
12 x 1-1/2 14 #3 PT 5/16″ 2,000
12 x 2 14 #3 PT 5/16″ 1,500
14 x 3/4 14 #3 PT 3/8″ 2,500
14 x 1 14 #3 PT 3/8″ 2,000
14 x 1-1/4 14 #3 PT 3/8″ 1,500
14 x 1-1/2 14 #3 PT 3/8″ 1,000
14 x 2 14 #3 PT 3/8″ 1,000

Anchor Bolt Length Chart

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This chart is available for referencing bent anchor bolt lengths. All sizes are in inches. For a printable version of our chart, download our Anchor Bolt Length Chart PDF. To learn more about anchor bolts, check out our blog on their types and uses.

Size Length Hook Thread Length
3/8 6 1 1/2
3/8 8 1 1/2
3/8 10 1 1/2
3/8 12 1 1/2
1/2 6 1 2
1/2 8 1 2
1/2 10 1 2
1/2 12 1 2
1/2 14 1 2
1/2 16 1 2
1/2 18 1 2
1/2 20 1 2
1/2 24 1 2
5/8 6 2 4
5/8 8 2 4
5/8 10 2 4
5/8 12 2 4
5/8 14 2 4
5/8 18 2 4
5/8 20 2 4
5/8 24 2 4
3/4 6 3 4
3/4 10 3 4
3/4 12 3 4
3/4 14 3 4
3/4 16 3 4
3/4 18 3 4
3/4 24 3 4
3/4 30 3 4
3/4 36 3 4
7/8 12 3 5
7/8 14 3 5
7/8 18 3 5
7/8 24 3 5
1 14 3 6
1 15 3 6
1 16 3 6
1 18 3 6
1 20 3 6
1 24 3 6
1 30 3 6
1 36 3 6
1 36 4 6
1 1/4 18 3 6
1 1/4 24 3 6

Mechanical Joint T-Head Bolt Technical Information

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This chart aligns with ANSI/AWWA C111/A21/11-00. If you have any questions about this chart or our products, please contact our sales team.

*Size and length are in inches. Torque is in foot-pounds.

Nominal
Recommended
Pipe Size 		Quantity Size Length Torque
3 4 5/8 3 45-60
4 4 3/4 3 1/2 75-90
6 6 3/4 3 1/2 75-90
8 8 3/4 4 75-90
10 8 3/4 4 75-90
12 8 3/4 4 75-90
14 10 3/4 4 1/2 75-90
16 12 3/4 4 1/2 75-90
18 12 3/4 4 1/2 75-90
20 14 3/4 4 1/2 75-90
24 16 3/4 5 75-90
30 20 1 6 100-120
36 24 1 6 100-120
42 28 1 1/4 6 1/2 120-150
48 32 1 1/4 6 1/2 120-150

Flanged Joint Heavy Hex Bolt Technical Information

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This chart aligns with ANSI/AWWA c115/A21.15-99 & C110/A21.10-03. If you have questions about our product line, contact our expert sales team today.

Nominal
Recommended
Pipe Size
 Quantity Size Length
3 4 5/8 2 1/2
4 8 5/8 3
6 8 3/4 3 1/2
8 8 3/4 3 1/2
10 12 7/8 4
12 12 7/8 4
14 12 1 4 1/2
16 16 1 4 1/2
18 16 1 1/8 5
20 20 1 1/8 5
24 20 1 1/4 6 1/2
30 28 1 1/4 6 1/2
36 32 1 1/2 7
42 36 1 1/2 7 1/2
48 44 1 1/2 8
54 44 1 1/2 8 1/2
60 52 1 3/4 9
64 52 1 3/4 9

F3125 Grade A325 and A490 Tensions Control Bolt Dimensions

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Birmingham Fastener carries F3125 A325 and A490 TC Bolts in the following dimensions. If you have any questions, please contact our sales team.

Diameter of Bolt Bearing Surface Diameter Bolt Head Height (max) Bolt Head Height (min) Length of Spline Diameter of Spline Reference
5/8 1.102 .403 .378 .60 .43
3/4 1.338 .483 .455 .65 .53
7/8 1.535 .563 .531 .72 .61
1 1.771 .627 .591 .80 .70
1 1/8 1.991 .718 .658 .90 .80
Contact our Sales Team to Discuss Your Next Project

How to Measure a U-Bolt – U-Bolt Size Chart

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How to Measure a U-Bolt

A U-bolt is measured by four dimensions: the length, the hook, the diameter, and the thread length. In waterworks applications, you can refer to the chart below for the correct U-bolt size you will need for different pipe sizes.

u-bolt

U-Bolt Length

The length of a U-bolt is measured from the end of the bolt to the inside of the bend (see image above).U-Bolt Hook

A U-bolt’s hook is the distance between the legs of the bolt, as represented by “C” in the image above. It’s important to note that in some drawings, the hook is shown at the center or bottom of the bolt. Furthermore, some companies measure the hook from the center of one leg to the center of the other leg. Birmingham Fastener measures the dimensions as outlined in the Industrial Fastener Institute Standard IFI-136.

U-Bolt Diameter

To measure a U-bolt’s diameter, you’ll measure the diameter of one of the bolt’s legs (see “D” in the image above).

U-Bolt Size Chart

This chart is available for referencing U-bolt lengths. All sizes are in inches. For a printable version of our chart, download our U-Bolt Length Chart PDF.

Pipe Size Diameter C (Hook) L (Length) T (Thread Length)
1/2 1/4 15/16 3  1/4 2  3/8
3/4 1/4 1  1/8 3  5/16 2  3/8
1 1/4 1  3/8 3  7/16 2  3/8
1  1/4 3/8 1  11/16 3  3/4 2  3/8
1  1/2 3/8 2 4 2  1/2
2 3/8 2 7/16 4 1/2 2  1/2
2  1/2 1/2 2 15/16 5 1/4 3
3 1/2 3 9/16 5 13/16 3
3 1/2 1/2 4 1/16 6 5/16 3
4 1/2 4 9/16 6 13/16 3
5 1/2 5 5/8 7 13/16 3
6 5/8 6 3/4 9 1/2 3 3/4
8 5/8 8 3/4 11 1/2 3 3/4
10 3/4 10 7/8 13 13/16 4
12 7/8 12 7/8 16 1/16 4 1/4
14 7/8 14 1/8 17 5/16 4 1/4
16 7/8 16 1/8 19 5/16 4 1/4
18 1 18 1/8 21 11/16 4 3/4
20 1 20 1/8 23 11/16 4 3/4
24 1 24 1/8 27 11/16 4 3/4
30 1 30 1/8 33 11/16 4 3/4
36 1 36 1/8 39 11/16 4 3/4