Type GF Grate-Fast™
A high strength floor connector for securing rectangular open bar grating to the supporting steel without the need for drilling or welding in the field.
Overview
The Type GF Grate-Fast connector eliminates the need for costly scaffolding or elevated floors as access to the underside of the flooring is not required. Installation is carried out quickly and safely from above, often by one person, significantly reducing costs. The malleable iron cast body along with the unique stepped clamping face, which locks under the steel, provides outstanding clamping force and a secure connection.
Product Selector
• LGF025-11W for 11-W or 11-P series of close mesh bar grating.
• LGF031 for GRP grating with stainless steel top hat bracket, Sheraplex coated body and socket head screw.
• LGF037 (OSB) is hot dip galvanized for increased corrosion resistance.
• LGF037 is hot dip galvanized for use with 13⁄16" width floor grating bars only.
Features & Benefits
- Superior clamping force from the cast body.
- Lloyd’s Register Type Approval for resistance to shock and vibration.
- Pre-assembled fixing for quick and easy installation.
- Designed for pedestrian walkways only.
- Easy to remove for maintenance access.
Approvals
Click on an approval logo to download the certificate or report.
Properties
- Material:
• Top Hat:
◦ Stainless steel grade 304 (LGF031 only).
◦ Mild Steel, hot dip galvanized (LGF025-11W, LGF037 (OSB) and LGF037 only).
• Body:
◦ Malleable iron, Sheraplex (LGF031 only).
◦ Malleable iron, hot dip galvanized (LGF025-11W, LGF037 (OSB) and LGF037 only).
- 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
| Product Code | Bolt 8.8 | Flange | Grating Bar Depth | Grating Bar Width | Bar Distance | Tightening Torque | Across Flats |
|---|---|---|---|---|---|---|---|
| Z | T | D | W | X | |||
| mm | mm | mm | mm | Nm | mm | ||
| LGF0311) | M8 | 3 - 19 | 22 - 38 | 5 - 10 | 19 - 48 | 5 | 6 |
| LGF037 (OSB)2) | M10 | 3 - 19 | 20 - 50 | 3 - 7 | 25 - 45 | 11 | 10 |
| LGF0371) | M10 | 3 - 19 | 19 -40 | 3 - 6.5 | 30 | 11 | 8 |
1) Supplied with socket head cap screw.
2) Supplied with hex head screw.
Safe Working Loads (LGF031/LGF037 (OSB)/LGF037): Tensile = 1.6kN/bolt (4:1 FoS) Slip = 0.5kN/4 bolts (4:1 FoS)
For Characteristic Resistances when designing a connection to Eurocode 3, please refer to DoP No.014
| Product Code | Bolt | Flange | Grating Bar Depth | Grating Bar Width | Bar Distance | Tightening Torque | Hexagon Key / Socket |
|---|---|---|---|---|---|---|---|
| Z | T | D | W | X | |||
| ft lb | mm | ||||||
| LGF025-11W | M6 (1⁄4") | 1⁄4" - 3⁄4" | 1" - 2" | 1⁄8" - 3⁄16" | 11⁄16" | 3 | 5 (3⁄16") |
| LGF0311) | M8 (5⁄16") | 1⁄8" - 3⁄4" | 7⁄8" - 11⁄2" | 3⁄16" - 3⁄8" | 3⁄4" - 17⁄8" | 4 | 6 (7⁄32") |
| LGF037 (OSB)2) | M10 (3⁄8") | 1⁄8" - 3⁄4" | 13⁄16" - 2" | 1⁄8" - 1⁄4" | 1" - 13⁄4" | 8 | 10 (3⁄8") |
| LGF0371) | M10 (3⁄8") | 1⁄8" - 3⁄4" | 3⁄4" - 19⁄16" | 1⁄8" - 1⁄4" | 13⁄16" | 8 | 8 (5⁄16") |
1) Supplied with socket head cap screw.
2) Supplied with hex head screw.
Safe Working Loads (LGF031/LGF037 (OSB)/LGF037): Tensile = 360lbs/bolt (4:1 FoS) Slip = 112lbs/4 bolts (4:1 FoS)
Safe Working Loads (LGF025-11W): Slip = 24lbs/4 bolts (4:1 FoS)
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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