TigerClaw Hidden Deck Fasteners


Grooved Board Fasteners
with screws
Tiger Claw TC-G Grooved Board Fasteners

TigerClaw TCG
TigerClaw TCG


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) A router or biscuit joiner can be used to create grooves in solid edge decking.


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


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


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


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


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 = # Boxes (round up to next box)

Installation Instructions

TC-G - Grooved Board Fastener will work in the following lumber/composite 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
TigerClaw TCG

TigerClaw TCG

TC-G - Grooved Board Fastener
with screws

50 sq.ft. pkg at 16" o.c. joists
90 pc count

Installation Instructions



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

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

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