Tiger Claw Composite Fastener – TC-3

Tiger Claw Composite Fastener – TC-3




300 Series Stainless steel fastener with black oxide coating to better hide fastener between boards.


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:

Fastener provides an automatic 3/16″ spacing, but will accommodate up to 5/16″. We recommend spacing according to the decking manufacturer specifications. Check the decking manufacturer’s installation guide for spacing details. If decking is less than 5/16″ in thickness, pre drilling may be required. Test fasteners in decking before installation begins.


Developed specifically for use with composite or synthetic decking materials and some medium density hardwoods.

TC-3 will work in the following composite and synthetic decking lumber varieties:

TC-3 will work in the following medium density hardwood decking lumber varieties:

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

TC-3 should NOT be used with the following types of decking:


Medium density hardwood decking, (ie; Mahoganies like Meranti and Combara) are types of material that are more susceptible to movement depending on the climate in which it is used. Altitude, moisture content, humidity, and temperature are some factors to consider when selecting the proper gap for these types of decking material. Consult with your lumber provider to determine how the material will react to climate changes in your particular area and application. The TC-3 fastener is designed to better hand movement in these types of materials.
* TC-4 fasteners should not be used with these types of decking.

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Brand name

TC-3: Coated stainless steel hidden deck fastener 







Recommended Materials

Use with most polyethylene based composites and vinyl decking (5/4” or thicker Trex, Veranda, Boardwalk…)




Semi gloss black finish, rectangular body with horizontally oblong shaped hole along lower bend. Two sets of large opposing prongs on top. 3/16” spacing flanges on inner prongs. 




.50” h x 2.12” w
x 1.20” d




.060 304 ¼ roll hardened stainless steel (Semi-magnetic) 

Yield strength 64.5 kpsi 
Tensile strength 145.7 kpsi 




Black oxide with sealer topcoat




All work can be done quickly from above using basic tools (hammer, screw gun, 1/8” drill bit, sledge hammer)




TC-3 will automatically create a gap between each decking board slightly greater than 3/16”. With the use of spacers or shims, TC-3 can support gapping up to 5/16”. Please click here to see the Spacing Addendum.



Expansion / Contraction

Fasteners are designed to allow decking to expand and contract naturally by sliding on the fastener prongs and still maintain hold down strength. From the point of installation, the TC-3 Fastener can handle expansion up to 1/8” and contraction up to 3/16”. The oblong shaped screw hole in the TC-3 is designed to allow for lineal expansion in composite deck boards.



Recommended Screw Used

Quality Stainless steel # 8 x 2” bugle head decking screw included in each box and project pail.




90 pieces per box (SKU # F-4408-3SRB)
12 – 90 piece boxes per case
900 pieces per bucket (SKU # F-4408-3SCB)



Package Content

Retail Box:
(90) Tiger Claw fasteners, (1) Installation instruction sheet, (1) Installation Block, (1) Support Addendum

Project Pail:
(900) Tiger Claw Fasteners, (2) Installation instruction sheet, (2) support addendums, (6) Installation Blocks, (1) Instructional DVD, (1) Increasing Profits, (1) Tiger Flyer



Retail Unit Dimensions

(90 Piece Box): 4.75” h x 5.50” w x 5.25” d, 3.0 lb
(900 Piece Bucket):




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)





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