Kreg SML-C250 Coarse Washer-Head Pocket-Hole Screw Review (2026)
By The DIYPicks Team · Updated July 2026
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- Cabinetry
- Pocket hole
- Furniture
- Interior
The purpose-built washer-head screw that makes Kreg pocket-hole joints tight and flush, but only for interior joinery.
Pros
- Flat-bottom Maxi-Loc washer head seats correctly in a Kreg pocket and won't overdrive
- Type-17 auger tip self-taps, so joints don't split even near board ends
- Square drive grips the bit and pulls joints tight with almost no cam-out
Cons
- Zinc finish is interior-only; exterior pocket-hole work needs the blue-Kote or stainless version
- Coarse thread is matched to softwood/ply; hardwoods want the fine-thread screw instead
- Proprietary pocket-hole geometry means these aren't a general-purpose wood screw
Specifications
| Drive | #2 Square (included in Kreg jigs) |
|---|---|
| Coating | Zinc (interior) |
| Length range | 3/4 in - 2-1/2 in |
| Head | Maxi-Loc washer head (flat-bottom) |
| Material | Steel |
| Thread | Coarse (softwood, plywood, MDF, particleboard) |
| Best use | Pocket-hole joinery in cabinets and furniture |