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Girder Clamp

The Girder Clamp is a rigid assembly for securing secondary steelwork to structural members. Because there is no drilling, the integrity of the steelwork remains intact. There is no welding so the connection is speedy, simple and adjustable if required. Each Girder Clamp comprises: two Lindapters per bolt; nuts; washers and a pre-drilled location plate. By altering the location plate dimensions a Girder Clamp can be supplied to accommodate any size or type of steelwork. Similarly, it can be varied to cope with differences in height between primary and secondary steelwork and/or angular displacement between the two members. On receipt of the relevant details of an application we will supply complete Girder Clamp assemblies, which include specifically designed location plates and all necessary components. When installed according to our recommendations the Lindapter Girder Clamp carries a guarantee of performance. When Lindapter Girder Clamps have been specified, the complete connections are delivered ready for immediate installation according to the assembly diagram supplied for each type. Finish- Lindapter - Electro-Galvanised; Location plate/bolts - as required.

Ref : 10002

Load Data For a Standard 4 Bolt Girder Clamp

Bolt Size 3/8" 1/2" 5/8" 3/4" 1" 1 1/4" 1 1/2" SAE Bolt Grade 2 2 5 2 5 2 5 2 5 2 5 2 5 Loads (lb) at 5:1 Factor of Safety 1415 3322 5205 4690 6552 7718 13237 11308 17679 - 33721 - 56202 Torque (lb ft) A B D2 D3 BR LR 15 28 50 68 108 130 210 173 362 - 694 - 1265 Torque (lb ft) C1 C2 D1 8 14 25 34 54 65 105 87 181 - 347 - 614 Minimum Location Plate Thickness * 3/16" 3/16" 5/16" 1/4" 3/8" 5/16" 1/2" 3/8" 9/16" - 3/4" - 1 1/2"

* When using type LR Lindapters the location plate thickness should be increased by a minimum of 50%. § Special conditions may apply. See Loads and Specifications. Data shown is for a 90° crossover in a tensile load condition. All loads are based on the recommended Safety Factor of 5. Use of any lower Safety Factor is at the customer's discretion.

Important Note:

The location plate is an integral part of the Lindapter Girder Clamp. Its use is essential, to hold the bolts close to the steelwork and to support the tails of each Lindapter. When ordering girder clamps the following details are required: 1. Load per connection 2. Flange thickness (both beams) 3. Flange width (both beams) 4. Flange type (or give angle of taper if not parallel) 5. Angle of crossover

Link to Spacer Plate Calculator

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Newman Tools Inc. makes every effort to ensure technical specifications and other descriptions are correct. Responsibility for errors or omissions cannot be accepted. We reserve the right to make specification changes without prior notice.

Lindapter® is a registered trademark of Lindapter International