Type A Girder Clamp
Standard girder clamp used to quickly connect steel beams with parallel / flat flanges and resist moderate tensile loading.
Overview
The Type A girder clamp is used to achieve a fast connection between two steel beams and is often used in a pair with Type B clamps. It has a recessed top to hold the bolt head captive while the nut and washer are tightened down using only one tool. The skirt on the underside of the clamp abuts the edge of the beam flange and prevents the clamp rotating during installation. Type A girder clamps can also be used on their own if one piece of the steel has been pre-drilled.
Features & Benefits
- Recessed top holds the bolt captive while the nut is tightened.
- Idependently evaluated for fatigue resistance per EN 1993-1-9. Contact us for details.
- Ideal for parallel flanges.
- Supports up to 17,720lbs tensile load in a four-bolt configuration.
- Independently approved for dynamic load applications to EN 1993-1-9. Contact us for details.
Approvals
Click on an approval logo to download the certificate or report.
Tail Lengths & Packing Pieces
The clamp is available in three tail lengths, Short, Medium and Long and can be used with Lindapter packing pieces to increase the clamping range. Choose the correct combination of tail length and packing pieces to suit a specific flange thickness. Download datasheet for selection table.
Location & End Plates
Location plates are required when securing two sections together with clamps attached to the upper and lower sections with both clamps directly opposing each other. The plate is positioned between the two sections to hold the bolts at the correct centers and should be fabricated to the dimensions shown in the datasheet.
End Plates should be used when clamps are attached to the supporting section only. The End Plate holds the bolts at the correct centers and should be fabricated to the dimensions shown in the datasheet.
Properties
- Manufactured from malleable iron to BS EN 1562.
- Available with zinc plated or hot dip galvanized finish.
- Reaction to fire: A1 (Steel)
Durability and corrosion protection:
| Corrosivity Class | Galvanized Steel | Electroplated Steel |
|---|---|---|
| C1 | More than 50 years | More than 20 years |
| C2 | More than 50 years | More than 5 years |
| C3 | More than 20 years | Not suitable |
For C4 and C5 corrosion categories contact us.
Technical Specification
| Safe Working Loads (FOS 5:1) | Dimensions | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Product Code | Bolt 8.8 Z | Tensile / 1 Bolt | Slip / 2 Bolts | Tightening Torque* | Y | X | Tail Length V | T | Width | ||
| short | medium | long | |||||||||
| kN | kN | Nm | mm | mm | mm | mm | mm | mm | mm | ||
| LA037 | M10 | 1.5 | - | 20 | 20 | 11 | 4 | 5 | 7 | 5 | 26 |
| LA050 | M12 | 5.8 | 0.9 | 69 | 26 | 13 | 4.5 | 6 | 9.5 | 6 | 29 |
| LA062 | M16 | 8.5 | 1.7 | 147 | 30 | 16 | 5.5 | 8 | 11 | 8 | 36 |
| LA075 | M20 | 14.7 | 3.0 | 285 | 36 | 19 | 7 | 10 | 12.5 | 10 | 46 |
| LA100 | M24 | 19.7 | 4.5 | 491 | 48 | 29 | 9 | 12 | 16 | 13 | 55 |
* Torque figures based on bolts / setscrews in an unlubricated condition.
Suitable for UPN / IPN type tapered flanges. For further information contact Lindapter Technical Support.
For Characteristic Resistances when designing a connection to Eurocode 3, please refer to DoP No.003
| Safe Working Loads (FOS 5:1) | Dimensions | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Product Code | Bolt Grd. 5 Z | Tensile Resistance / 1 Bolt | Slip Resistance / 2 Bolts | Tightening Torque* | Y | X | Tail Length V | T | Width | ||
| lbs | lbs | ft lb | short | medium | long | ||||||
| LA0371) | 3⁄8" | 337 | - | 15 | 13⁄16" | 7⁄16" | 5⁄32" | 3⁄16" | 9⁄32" | 3⁄16" | 1" |
| LA050 | 1⁄2" | 1304 | 202 | 50 | 1" | 1⁄2" | 3⁄16" | 1⁄4" | 3⁄8" | 1⁄4" | 1 1⁄8" |
| LA062 | 5⁄8" | 1911 | 382 | 108 | 1 3⁄16" | 5⁄8" | 1⁄4" | 5⁄16" | 7⁄16" | 5⁄16" | 1 3⁄8" |
| LA075 | 3⁄4" | 3305 | 674 | 210 | 1 7⁄16" | 3⁄4" | 5⁄16" | 3⁄8" | 1⁄2" | 3⁄8" | 1 13⁄16" |
| LA1001) | 1" | 4430 | 1012 | 362 | 1 7⁄8" | 1" | 3⁄8" | 1⁄2" | 5⁄8" | 1⁄2" | 2 1⁄8" |
1) Requires Type W washer.
* Torque figures based on fasteners in an unlubricated condition.
Suitable for UPN / IPN type tapered flanges. For further information contact Lindapter Technical Support.
How can we
help you?
Reasons to choose Lindapter
-
Save time and money
Clamping two steel sections together avoids time-consuming welding or conventional drilling and bolting.
-
Safer connections
Drilling and welding in the field is avoided, removing the need for hot work permits and encouraging safer site conditions.
-
High strength
Lindapter clamps are manufactured from high strength materials to resist high load requirements and harsh environments.
-
Industry leading approvals
Lindapter has earned a reputation synonymous with safety and reliability, gaining multiple independent approvals.
-
Adjustable
Quickly align steel sections by sliding the section into the correct position before tightening the Girder Clamp to complete the installation.
-
Free connection detailing
Lindapter’s experienced Engineers can detail a custom connection based on your specific requirements free of charge.
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