Tiger Claw Grooved Board Fastener – TC-G

Tiger Claw Grooved Board Fastener – TC-G



300 Series Heavy Gauge Stainless Steel Hidden Deck Fastener with black oxide coating.

When using Tiger Claw fasteners please review and comply with these requirements to obtain proper installation. Failure to follow these requirements may result in deck failure and/or void of warranty.

Inspect decking material prior to installation. Omit any planks that contain hooks, twists, splits, cracks, or other defects. Always install decking with the crown upward.

When using:

Recommended for use in 5/4″ or thicker decking. If using pre-grooved decking be sure that the groove is the correct dimension and location on the board so that it is compatible with the TC-G fastener. (see groove specs below) A router or biscuit joiner can be used to create grooves in solid edge decking.

TC-G is ideal for composites and hardwoods*, 5/4” to 2” in harsh or coastal environments.

* TC-G will work in the following decking lumber varieties:

  • Brazilian redwood
  • Ipe
  • Iron Wood
  • Mangaris
  • PurpleHeart
  • Teak
  • Cambara
  • Meranti
  • Medium Density Mahogany
  • Atlantic White Cedar
  • Cedar
  • Eastern Spruce
  • Eastern White Cedar
  • Port Orford Cedar
  • Western Red Cedar
  • Western Redwood
  • Yellow Cedar
  • Boardwalk
  • ChoiceDek
  • Elements
  • EverGrain
  • EverX
  • Fiberon
  • Latitude
  • Monarch
  • Nexwood
  • Portico
  • Rhino Deck
  • TimberTech (5/4 planking)
  • Trex
  • UltraDeck solid
  • Veranda
  • Weather Best
  • WeatherShield
  • Elk
  • Endure
  • Moisture shield
  • Symmatrix

Please consult your manufacturer or ask us first if you plan to use any other decking material not listed above in your decking project.

Unfortunately, due to the properties of the following materials, we do not recommend our fasteners for:

  • Pressure Treated Pine
  • Decking Material prone to high shrinkage
  • Hollow Composite decking
  • Decking boards less than 7/8” thick


Brand name

TC-G: Coated stainless steel hidden deck fastener



Connecticut, USA


Recommended Materials

Use with decking no less than 7/8” in thickness. (not recommended with decking prone to high shrinkage like Pressure Treated Pine.)


Semi gloss black finish, rectangular body with a screw hole in the bend of the bottom flange. Two large off set opposing tabs on top, one tab with small points and the other with a rolled edge, one spacer tab on side of fastener body.



.512” h x 1.075” w x 085” d



.060 304-2B annealed stainless steel (Non-magnetic)

Yield strength 45.5 kpsi

Tensile strength 101.7 kpsi



Black oxide with sealer topcoat



All work can be done quickly and easily from above using basic tools (screw gun)


Recommended Screw Used

Quality Stainless steel # 7 x 1 5/8” #1 finished head decking screw. Screws included in each bag.



TC-G will automatically create a 3/16” space between each board.


Expansion / Contraction

Fasteners are designed to allow decking to expand and contract naturally by sliding on the fastener tab and still maintain hold down strength. TC-G is designed to maintain consistent spacing as deck boards expand and contract. From the point of installation, the TC-G can handle board expansion up to 1/8” and contraction up to 3/16”



90 piece bag (SKU # F-4058-TCGS)
10 bags per tray pack
2 tray packs per master carton


Package Content

Retail Unit: (90) Tiger Claw fasteners, (92) # 7 x 1 5/8 stainless steel screws, (1) #1 square drive bit, (1) Installation instruction, (1) Support Addendum


Retail Unit Dimensions

(90 piece bag): 6.00”h x 5.00”w x 1.25”d, 1.80 lb



A fastener is needed at every intersection of a joist and decking board.

When using 5.5” decking with 16” on center joists:

Square footage x 1.75 = # Fasteners

For other configurations:

# Decking boards x # Supports = # Fasteners
# Fasteners / 90 = # Bags (round up to next bag)



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