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Two head styles, five popular lengths, and the fast penetration of a self‑drilling tip — this 370‑piece GooBetter kit keeps you covered for sheet‑metal jobs, framing, and repairs. Each screw is made from 410 stainless steel, hardened for extra strength, and finished with a black oxide coating that adds a layer of corrosion resistance while providing a low‑profile, matte look. Choose the hex washer head when you need high torque with a socket driver, or the Phillips truss (round) head when you want a wide bearing surface and a flush finish. Both styles feature a drill‑bit tip that bores through steel, wood, and plastic without a pilot hole. The kit includes five exact #8 lengths — 1/2″, 5/8″, 3/4″, 1″, and 1‑1/4″ — all neatly organized in a sturdy plastic case, so you can grab what you need and get straight to work.
| Head Style | Thread Size | Length | Quantity | Drive | Material & Finish |
|---|---|---|---|---|---|
| Hex Washer Head | #8 | 1/2″ | 50 pcs | External Hex (5/16″) | 410 Stainless, Black Oxide |
| Hex Washer Head | #8 | 5/8″ | 40 pcs | External Hex (5/16″) | 410 Stainless, Black Oxide |
| Hex Washer Head | #8 | 3/4″ | 40 pcs | External Hex (5/16″) | 410 Stainless, Black Oxide |
| Hex Washer Head | #8 | 1″ | 30 pcs | External Hex (5/16″) | 410 Stainless, Black Oxide |
| Hex Washer Head | #8 | 1‑1/4″ | 25 pcs | External Hex (5/16″) | 410 Stainless, Black Oxide |
| Truss (Round) Head | #8 | 1/2″ | 50 pcs | Phillips | 410 Stainless, Black Oxide |
| Truss (Round) Head | #8 | 5/8″ | 40 pcs | Phillips | 410 Stainless, Black Oxide |
| Truss (Round) Head | #8 | 3/4″ | 40 pcs | Phillips | 410 Stainless, Black Oxide |
| Truss (Round) Head | #8 | 1″ | 30 pcs | Phillips | 410 Stainless, Black Oxide |
| Truss (Round) Head | #8 | 1‑1/4″ | 25 pcs | Phillips | 410 Stainless, Black Oxide |
Total: 370 pieces. All screws are self‑drilling. Hex washer head uses a 5/16″ socket; truss head uses a #2 Phillips bit. Storage case dimensions: 20 cm × 13.5 cm × 4 cm.
No. The drill‑shaped tip will penetrate sheet metal up to about 2 mm thick, as well as wood and plastic, without a pilot hole. For thicker or harder materials, you can always use a small pilot hole to reduce drive torque, but in typical applications, they are one‑step fasteners.
The black oxide coating provides an additional layer of corrosion protection over the already rust‑resistant 410 stainless steel. It will hold up well in indoor and mild outdoor conditions. For constant saltwater exposure, consider 304 or 316 stainless, but for general use, the black oxide 410 stainless combination is very durable.
The hex washer head is driven with a 5/16″ socket and allows more torque without cam‑out – ideal for heavy sheet‑metal and framing work. The truss (round) head has a wider bearing surface to resist pull‑through and uses a standard #2 Phillips screwdriver, making it great for finish work, thin panels, and applications where the fastener should sit flatter.
Yes, 410 stainless is magnetic, which can be helpful when using a magnetic‑tip driver or picking up dropped screws. This is normal for this grade and does not affect corrosion resistance.
