Timco Drywall Screws 3.5 x 42 Fine Thread Bugle Head 320

These drywall screws are engineered for securing plasterboard to wall and ceiling track systems, with a focus on reliability in applications requiring a maximum board thickness of 0.6 mm. The screws are designed to provide strong holding power through fine threading and a bugle head, and are manufactured to high material and finishing standards. They are fully threaded along their length (up to 50 mm) to resist torque and shear under load, and incorporate surface hardening to improve durability. The screws come in a black finish or zinc plating, offering options for corrosion resistance. They have been independently tested to recognized specifications and exhibit a robust construction suitable for drywall installations where precise thickness control and secure fastening are essential.

Features

• Size: 3.5 x 42 mm
• Thread: Fine thread, Bugle head
• Construction: C10-18 steel, 750 HV surface hardened
• Coating: Zinc or black phosphate plating
• Compliance and testing: JISB1125(1995); ASTMC1002-89

Technical specifications

• Application: Plasterboard to wall/ceiling track systems (max 0.6 mm)
• Length and threading: 42 mm, fully threaded through length (up to 50 mm)
• Material and finish: C10-18 steel, zinc or black phosphate plating, 50 h salt spray tested