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The Kreg SPS-C1 is a #7 x 1-inch modified pan head pocket-hole and face frame screw built for softwood, plywood, and sheet good assemblies. The square drive, coarse thread, and Type 17 auger point work together to make pocket-hole joinery faster and cleaner in the materials cabinet shops and DIYers use most.
The 1-inch length and coarse thread combination targets 3/4-inch softwood, plywood, and sheet good stock — the everyday material in face frame construction, cabinet box assembly, and furniture joinery. When the pocket is bored at 15 degrees through 3/4-inch stock, a 1-inch screw puts full thread engagement into the mating piece without over-penetrating. That makes this length the go-to for building face frames from pine or poplar, joining cabinet box panels in plywood, and assembling drawer boxes from MDF or melamine. Shops running high volumes of painted or stained softwood frames will find the coarse thread pulls consistently and releases cleanly from the driver without backing out mid-sequence.
The square recess on this screw is sized for a #2 square bit. With a correctly sized bit, the geometry is designed to hold the screw in place during placement — useful when driving at an angle inside a pocket or working in a cramped cabinet interior. Square drive also transfers torque efficiently, which means less cam-out risk when driving repeatedly through a production run. The modified pan head completes the pairing: its broad, flat underside clamps the joint without acting as a wedge, so softwood rails and stiles pull tight rather than spreading under the head.
This is an indoor screw. The zinc finish is appropriate for the dry, climate-controlled environments where face frames and cabinet boxes live — shops, kitchens, baths, and furniture. For softwood and engineered panel work specifically, the coarse thread and 1-inch length make it a practical everyday choice for professional cabinet shops, custom furniture builders, and serious DIYers assembling projects with pocket-hole jigs. If the project involves hardwood face frame stock such as maple, oak, or cherry, a fine-thread screw is the better fit for that material.
Yes. This screw is designed for use with pocket-hole jigs and matches the geometry pocket-hole joinery requires: a modified pan head, angled shank entry, and self-starting point.
Coarse thread is correct for softwood, plywood, MDF, and melamine. Fine thread is for hardwood face frames in species like maple and oak, where the tighter pitch prevents splitting. Match the thread to the material.
A #2 square drive bit. Using a correctly sized bit is important — the square recess is designed to hold the screw during placement, and an off-spec or worn bit reduces that grip.
Yes, where the combined stock allows a 1-inch screw to reach adequate depth. For thicker combined sections, a longer screw in the same family is the better choice.
No. The zinc finish is rated for dry indoor environments. Use a screw with exterior-rated corrosion protection for outdoor work or pressure-treated lumber.
When the job is softwood face frames, plywood cabinet boxes, or sheet good assemblies and the tool is a pocket-hole jig, this Kreg SPS-C1 delivers the right thread, head, point, and drive in one screw — 500 at a time.
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