Struct-Fast Product:


Grate-Fast FG

For fastening fiberglass, aluminum, stainless or bronze bar grating to steel beams




Grate-Fast FG

For fastening fiberglass, aluminum, stainless or bronze bar grating to steel beams

Your choice of fiberglass (or non-corrosive metal) grating presumes a hostile environment. In these applications, drilling the steel (and penetrating coatings) is inappropriate and counter-productive. Instead, fasten your grating with the suitable Grate-Fast Model FG model.

Features:

✓ 300 Series Stainless Steel Investment Casting with reduced body width to fit
closer spacing of 15W, stainless steel bracket and bolts.

Grate-Fast FG (#GF-FG-1—#GF-FG-4)

  • 5/16” socket head cap screw bolt, 300 series stainless steel
  • Uses 1/4” hex wrench
  • Profiled nose to fit on flat or sloping beam flanges
  • 3/8” thread engagement for full loading and resistance to corrosion in thread area
  • Stainless Steel 300 Series investment casting body
  • 14 or 16 gauge, 300 series stainless steel top-hat bracket with one offset wing or flat wings to fit spacing between bars of 5/8” to 2”
  • 2-1/4” cap screw bolt length to accommodate up to 2” bearing bar depth*
  • Stepped tail fits beam flanges from 1/8” to 3/4” 
     

*Longer cap screw bolts to accommodate applications using greater bearing-bar depths available on special order.

Top Hat Offset and Flat Brackets (see chart for #)

14 or 16 gauge top-hat offset or flat wing brackets also available individually

Grate-Fast FG Installation

Step 1

Position the pre-assembled Grate-Fast with the body between the grating bars and the arrow on the nose pointing toward the steelwork with the top-hat bracket resting on the bearing bars. (Figure 1)


Step 2

Slide the Grate-Fast toward the steelwork until the nose fits under the beam flange. Where necessary, adjust the body/bolt to the approximate flange thickness/grating depth. (Figure 2)



Step 3

Tighten the cap screw bolt using the hexagon key. The Grate-Fast body casting will automatically rotate until it locks under the bearing bar, with the nose under the flange. Continue tightening to the recommended torque. Grate-Fast is now securely in position. (Figure 3)

Grate-Fast FG Specifications

Castings:

 › 300 series stainless steel investment casting

 › Minimum yield strength: 32,500 psi

 › Minimum tensile strength: 50,000 psi

 › Modulus of elasticity: 25,000,000 lbs.

 › Minimum elongation: 10% in 2”

 › BHN range: 110–130

 › Machinability: 120

Bracket: ASTM-A 300 series stainless
Socket head cap screw bolt: AISI C1008 300 series stainless
Weight per 100 units: 35 lbs.

Torque recommendations:
Grate-Fast FG: 4 ft. lbs
Ultimate Load: 650 lbs.
Average Side Load (depending on depth and coating): 450 lbs.