6 x 1/2 in. Silicon Bronze Boat, Flat Head, Square - Qty:1000
6 x 1/2 in. Silicon Bronze Boat, Flat Head, Square - Qty:1000
Silicon Bronze is known for its corrosion resistance and provides a decorative finish.
Whether you are practicing up on your self-sufficiency or learning firsthand about some new aspect of boat ownership, these screws are sure to come in handy, especially if yours is a wooden boat. That is why they are a great choice for marine (no, not that Marine) applications and for high-heat and corrosive environments. Silicon Bronze provides a great alternative to Stainless Steel.
Silicon bronze is an alloy (mixture) of 95-98 percent copper and 2-5 percent silicon. Many people have used them to build decks made of Western Red Cedar or Redwood because the screws will eventually blend into the color of the wood. Screws right off the production line are generally the color of a fresh penny. After they have been around a while, they oxidize and darken.
The shape and design of the traditional wood screw have changed little over time. Some new versions use a Phillips or a Square Drive. The difference between a traditional wood screw and a modern production screw lies in the sizing of the screw shank and the screw threads. Traditional Wood Screws have a shank diameter on this screw that exactly matches the outside dimensions of the threads. Threads on these screws are deeper near the point and begin to shallow as they get closer to the unthreaded shank or screw head.Tapered drill bits are needed with this type of screw, as the pilot hole should fit the outside shank diameter of the screw almost perfectly. Creating this tight fit on traditional wood screws yields maximum holding power.
Silicon Bronze is non-ferrous and will not stick to a magnetic driver bit. That is where the Robertson Square Drive comes in very handy. The Square Drive bit is tapered; it sinks into the screw, and all four sides of the surface engage the bit to the screw.
- Designed specifically for boat building
- Includes cut threads and the full-body-diameter shank preferred by boat builders
- Shank diameter below the head is the same diameter as the outside of the threads (This fills the clearance hole normally drilled for the shank, thus creating a seal)
- Made of marine grade alloy 651 Silicon Bronze for dependable corrosion resistance
- Threaded for 2/3 of the shank
NOTE: When installing solid brass or silicon bronze screws, clamp the work together tightly, drill an undersized pilot hole (1/64 in. to 1/32 in. under), then drive a steel screw (like our FSLs) of the same size as the brass screw to cut threads. Remove the steel screw and install the correct screw, being careful not to over-torque it. Lubricate the screw before installation with FastCap screw FSC- 6054. An alternative to pre-threading is to drill a pilot hole larger than the screw shank by 1/64 in. to 1/32 in..
Please see the additional Information tab for details on this specific screw.
| SIZE (#8, #10 ...) | #6 |
|---|---|
| LENGTH | 1/2 in. |
| MATERIAL | Bronze, Silicon |
| COUNTERSINK NIBS | Without Nibs |
| RECESS TYPE | Square |
| HEAD | Flat |
| POINT TYPE | Standard Wood |
| BRAND | McFeely's |
| RECESS SIZE | #1 |
| QUANTITY | 1000-Box |
| RoHS Compliant? | No |
| SKU | 0604-SFC-M |
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