Grate-Fast

Struct-Fast® Product:


Grate-Fast

For fastening bar grating to steel beams




CURIOUS HOW STRONG OUR

FASTENERS REALLY ARE?

 A demonstration of the strength of our Grate-Fast product. The strongest grating fastener on the market!

Grate-Fast Standard
Grate-Fast 3D & 4D

For fastening bar grating to steel beams

#SFGF-1

✓ 3/8” socket head galvanized fully threaded cap screw bolt ✓ Galvanized cast malleable iron body
✓ Uses 5/16” hex wrench ✓ 13 gauge galvanized top-hat bracket designed to fit bearing bar gauges 1/4”, 3/16” and 1/8” fixed at 1-3/16” centers
✓ Profiled nose to fit on flat or sloping beam flanges ✓ 2-1/4” cap screw bolt length to accommodate a wide range of bearing bar depths
✓ 3/8” thread engagement to enable full loading for vibration resistance ✓ Stepped tail fits beam flanges from 1/8” to 3/4
See Grate-Fast in Action

Need a specific profile saddle clip? View Saddle Clip options here

Grate-Fast 3D & 4D (#SFGF-1-3D/#SFGF-1-4D)

Grate-Fast 3D & 4D are available from stock with a 3-1/4” OR 4-1/4” long cap fully threaded screw bolt for applications with greater grating depth. Bolts longer than 4-1/4” are available on special order.

Grate-Fast Specifications

Castings:

 › Malleable iron to DIN 1692, corresponding to ANSI/ASTM A47-84-32510

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

 › Machinability: 120

 › Minimum yield strength: 32,500 psi

 › Minimum elongation: 10% in 2”

 › Minimum tensile strength: 50,000 psi

 › BHN range: 110–130

.

Bracket: ASTM-A 446 76 Grade D

Socket head cap screw bolt: AISI C1008, galvanizing ASTM B695 Class 50

Weight per 100 units: 44 lbs

Torque recommendations:

Grate-Fast: 8ft. lbs. (has been test up to 22ft. lbs.)

Ultimate Load: 800lbs.

Average Side Load: 450lbs. (depending on depth and coating)

Saddle Clip Options for different bearing bar sizes

For welded and pressure-locked grating having bearing bars 1 3/16" (1.1875) and 15/16" (.9375) on center. May be used on installations where grating is subject to frequent removal. Clips used on aluminum grating should be stainless steel.

15-W Saddle Clip

Galvanized or Stainless Steel

G .074 (14 ga.)
L 15/16" Center to Center
H 5/16" Hole Diameter
B 1/2" Base to Top

Fits over bearing bars, 1/8", 3/16" & 1/4" thick

Saddle Clips for Heavy Duty & Railroad Grating (Galvanized)

22-W

5/16" & 7/16" Holes
10-11 guage thickness

Fits over bearing bars up to 3/8" thick

27-W Railroad

9/16" x 13/16" Holes
13 guage thickness

Fits over bearing bars up to 3/16" thick

30-W

5/16" x 7/16" Holes
10-11 guage thickness

Fits over bearing bars up to 3/16" thick

38-W

5/16" x 7/16" Holes
10-11 guage thickness

Fits over bearing bars up to 3/16" thick

Grate-Fast 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)

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