Selectron 3.5x35 Self-Drilling Drywall Screw (1,000 Pieces)

Selectron 3.5×35 Drywall Screw — Drill‑Point, Fine‑Threaded (1,000 Pieces)

The Selectron 3.5×35 mm Drill‑Point Drywall Screw is a fastener specially designed for securing drywall panels directly to steel‑framed structures. Its drill‑point design cuts through steel up to 1.5 mm thick without pre‑drilling, shortening labour time. The fine‑thread profile delivers high holding power by engaging more threads on the steel surface. At 35 mm in length, it is the ideal size for standard‑thickness 12.5 mm drywall applications. The 1,000‑piece pack offers a practical, cost‑effective solution for construction crews, ceiling specialists, and wholesale suppliers.

Technical Specifications

• Brand: Selectron
• Type: Drywall Screw — Drill‑Point, Fine‑Threaded
• Diameter: 3.5 mm
• Length: 35 mm
• Head Type: Bugle Head — PH2 Phillips Drive
• Thread Pattern: Fine‑Threaded — narrow thread spacing optimised for steel sections
• Point Style: Drill‑Point — self‑drills steel up to 1.5 mm wall thickness
• Coating: Black Phosphate — corrosion resistance
• Material: Hardened Carbon Steel
• Compatible Framing: Steel sections 0.5–1.5 mm wall thickness
• Standard: DIN 18182‑2 / EN 14566
• Packaging: 1,000 pieces per pack
• Origin: Turkey

Applications

• Securing 12.5 mm drywall panels to steel‑framed structures
• Partition wall and suspended ceiling systems with steel framing
• Fast installation on thin‑gauge steel sections
• Interior finishing for offices, business centres, and commercial spaces
• Renovation and refurbishment projects in residential developments
• Interior cladding for prefabricated buildings with metal framing
• Detail work and repairs requiring shorter‑length fasteners
• Daily use and stockholding for professional teams

Product Advantages

• Drill‑point design — self‑drills through steel sections without pre‑drilling, saving time and labour on site
• Fine‑thread profile — more threads engage with the steel; resists slipping and loosening, forming a firm connection
• Ideal 35 mm length — provides full holding depth for 12.5 mm drywall fastened to steel; does not protrude through the back
• Bugle head — seats cleanly without damaging the drywall surface, leaving a perfectly smooth base ready for plastering
• PH2 Phillips drive — screwdriver bit seats fully with no slipping or wear, ensuring reliability in high‑volume applications
• Black phosphate coating — resists rust under indoor conditions; invisible beneath plaster and paint for a neat finish
• Hardened steel — resists wear during drilling; high resistance to bending and breakage
• 1,000‑piece pack — easy to transport on site; lowers unit cost; ideal quantity for everyday use

Installation & Assembly Recommendations

• Drive the screw perfectly perpendicular to the panel; angled entry reduces drilling efficiency and weakens hold
• Ensure the head sits flush with the surface; do not drive too deep and tear the paper facing
• Edge distance — install screws no closer than 10–15 mm from the panel edge; prevents edge cracking
• Section thickness — suitable for direct installation up to 1.5 mm; use 45 mm or 55 mm lengths for thicker sections
• Driving speed — use an appropriate rotation speed; excessive speed causes the point to overheat and reduces efficiency
• Not recommended for wood framing — coarse‑threaded sharp‑point models perform better in timber applications
• Do not over‑tighten — avoid pulling the head so deep that it weakens the drywall
• Storage — keep in dry conditions; select stainless steel versions for permanently damp or outdoor environments

Frequently Asked Questions

How does it differ from the sharp‑point version?
Drill‑point screws cut through steel themselves; sharp‑point types require pre‑drilling and are better suited to wood framing.

Can it be used in wood?
Not recommended — the fine‑thread design does not provide sufficient grip in wood; choose coarse‑threaded sharp‑point models for timber.

How does it differ from the 45 mm version?
The 35 mm is ideal for single‑layer 12.5 mm drywall; the 45 mm is used for double‑layer applications or thicker sections.

What is the maximum steel thickness it can handle?
Designed for direct installation up to 1.5 mm wall thickness; longer screws or pre‑drilling are advised for thicker sections.

Will it rust?
Phosphate coating is adequate for indoor conditions; stainless steel versions are available for consistently damp or outdoor exposure.