About the HIDfast HF3M Fasteners
HIDfast HF3M collated fasteners are the 3-inch, 3/16-inch-gap hidden deck fastener refill for the HIDfast Decker pneumatic tool. The HF3M differs from the 1/8-inch HF3 by producing a wider 3/16-inch board gap while keeping the same 3-inch fastener length and 175-count package. HF3M is selected when a wider board spacing is specified — common with decking materials that expand or where additional drainage is desired. Loaded into the HIDfast Decker, HF3M strips drive through the side of the board into the joist for stand-up installation and a fastener-free surface. Fastener Express stocks HF3M for contractor reordering, with support to match the correct gap to your decking.
Key Features & Benefits
- 3-inch collated hidden deck fasteners
- Produces a 3/16-inch board gap
- 175 fasteners per box
- Wider gap than HF3 for spaced decking
- Designed for the HIDfast Decker pneumatic tool
Technical Specifications
Common Applications
Frequently Asked Questions
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Buy online with same-day shipping, or call our team for bulk pricing and contractor quotes. Fastener Express has been supplying contractors since 1985.





