The chain is fine...but I ordered the wrong size. Nine links of the chain I ordered equals six of the size I wanted. My error...
How can I straighten out the springs? I can't use them coil uo as is.
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Drive them tight without the worry of stripping or rust — these A2 / 304 stainless steel pan head self‑tapping screws are built to last. The sharp, hardened thread bites cleanly into sheet metal, wood, plastic, and composite panels, tapping its own tight mate as you drive. No pre‑tap, no pilot hole in most thin materials. The pan head sits flush with a clean, rounded profile that looks professional and won’t catch, while the deep Phillips recess gives your driver a sure, cam‑out‑resistant grip. Because it’s solid 304 stainless, the corrosion resistance goes all the way through — no coating to wear thin — so these screws keep their strength in damp bathrooms, steamy kitchens, outdoor railings, and mild chemical environments. With five of the most‑requested metric diameters (M3, M3.5, M4, M5, M6) and a range of lengths, this series is ready for everything from electronics enclosures to structural brackets.
| Size | Thread Diameter | Available Lengths (mm)* | Head Style | Drive | Material |
|---|---|---|---|---|---|
| M3 | 3.0 mm | Various – see listing | Pan Head | Phillips | A2 304 Stainless Steel |
| M3.5 | 3.5 mm | Various – see listing | Pan Head | Phillips | A2 304 Stainless Steel |
| M4 | 4.0 mm | Various – see listing | Pan Head | Phillips | A2 304 Stainless Steel |
| M5 | 5.0 mm | Various – see listing | Pan Head | Phillips | A2 304 Stainless Steel |
| M6 | 6.0 mm | Various – see listing | Pan Head | Phillips | A2 304 Stainless Steel |
* Length options vary per size. Select your exact diameter and length from the listing variations. Natural stainless finish – no coating to peel or wear.
In thin sheet metal (up to about 1.5 mm), soft plastics, and wood, you can often drive them directly. For thicker steel or dense hardwood, a small pilot hole about 80% of the thread diameter will make driving easier and give you the cleanest thread engagement.
Yes. 304 stainless is highly resistant to humidity, steam, and mild cleaning chemicals. It’s the standard for bathroom fixtures, kitchen hardware, and outdoor railings. It won’t develop red rust like carbon steel even in consistently damp conditions.
M3 and M3.5 typically use a #1 Phillips bit. M4, M5, and M6 use a #2 Phillips bit. Using a sharp, correctly sized bit prevents cam‑out and keeps the screw head in good condition.
No. The 304 stainless is hardened and the threads are precision‑cut. The Phillips recess is deep and clean. When paired with a good‑fitting bit, they drive smoothly without stripping, even in harder materials like dense wood and mild steel.