If you’re hunting for Self Tapping Screws For Drywall, you’re probably balancing speed, bite, and corrosion resistance. The kit that keeps showing up on real jobs lately: Hex washer flange tapping screws with EPDM gaskets—unexpected for board-face fastening, sure, but extremely practical for tracks, furring channels, utility rooms, and anywhere moisture lurks behind gypsum. In fact, many contractors tell me they like the sealing washer because it prevents vapor egress at penetrations and accessories. I’ve seen that first-hand in retrofits.
Product name: Hexagon Washer Flange Tapping Screw With EPDM Rubber Gasket. Origin: South of Xi Zhaozhuang Village, Lin Luoguan Town, Yongnian District, Handan City, Hebei Province (West side of Jianshe Road). To be honest, the name is a mouthful; on site it’s simply the “hex washer with EPDM.” It’s a strong fit for mounting drywall accessory tracks to light-gauge steel, fixing channels behind boards, and fastening backerboard in damp areas. For board-face work, most crews still prefer bugle-heads—but these shine when you need a seal or a low-profile hex drive that won’t cam-out.
| Head / Drive | Hex washer flange, external hex (commonly 1/4") |
| Thread / Point | Self-tapping, sharp point or drill-point (per job spec) |
| Material | Carbon steel, case-hardened (ISO 2702 range) |
| Coating | Zinc, Ruspert, or dacromet-style options for corrosion |
| Gasket | EPDM ≈ 70 ±5 Shore A; service temp ≈ -40 to 120 °C (real-world may vary) |
| Pull-out (indicative) | 0.55–0.75 kN in 0.8–1.2 mm steel; 0.35–0.5 kN in wood backup (≈ values; verify on site) |
| Standards fit | ASTM C1002 / EN 14566 (drywall fasteners), ISO 1479 (tapping), ASTM B117 (corrosion), ASTM D2000 (EPDM) |
Materials are sourced (low-carbon steel), cold-formed, threads rolled, then heat treated for a tough case and ductile core. Coatings are applied (zinc/Ruspert). EPDM gaskets are assembled and compressed-tested. Routine verification includes:
Expected service life? In interior, conditioned spaces—many years; in damp zones, it depends on coating system and exposure. I guess most facility managers plan for periodic inspection, which is wise.
The factory cluster around Handan, Hebei, has become a fastener powerhouse. The address above is smack in the Yongnian District supply chain—lots of tooling expertise.
| Vendor | Certs (typical) | Lead Time | Coating Options | QC Scope |
|---|---|---|---|---|
| LZ Fasteners (Hebei) | ISO 9001 (common), EN 14566 compliance on request | 2–4 weeks | Zinc, Ruspert, custom colors | Incoming steel checks, B117, torque/pull-out sampling |
| Vendor A | ISO 9001 | 4–6 weeks | Zinc only | Basic hardness/visual |
| Vendor B | ISO 9001, CE file | 3–5 weeks | Zinc, dacromet | Periodic B117, torque |
A contractor retrofitting a hospital utility corridor used Self Tapping Screws For Drywall with EPDM to secure furring channels behind moisture-resistant gypsum. Lab salt spray logged ≈720 h to first red rust (ASTM B117, sample lot), and field punch-list found zero weeping at penetrations after six months. Not bad. The crew also liked the hex drive—less cam-out when arms are overhead.
Bottom line: For accessories, tracks, and damp-area backing, Self Tapping Screws For Drywall with EPDM gaskets are a smart, modern pick—fast install, cleaner seals, and respectable corrosion performance when coated right.