Otter 12-14 x 20mm Class 4 Hex Head Coarse Thread with Seal Self Drilling Screws – (500 Pack)

500 pack of Otter Industrial Class 4 self-drilling hex head screws with washer seal, 12-14 x 20mm,  Ideal for fixing metal roofing and cladding.

Hex Head SDS Coarse Thread

Hardened point designed to self drill through thin metal, and a broad flanged base for use in structural applications where holding power is paramount. Fitted with a high-quality seal to prevent water ingress and electrolysis.

Application: For fixing roofing and cladding (with EPDM washer to weather seal)

End User: Plumbers, Roofers, Builders, Fencers and DIYers

Features: Cold forged and roll-formed, hex flanged head with EPDM washer, coarse thread, made from hardened wire

Full Product Description

Otter 12-14 x 20mm Class 4 Hex Head Self Drilling Screws with Seal – (500 Pack)

These premium Otter Industrial screws are designed for reliable fixing of metal to metal in roofing, cladding, and steel frame applications. Featuring a Class 4 finish, they provide excellent corrosion resistance, making them ideal for external environments, especially in harsh Australian conditions. The integrated washer and seal ensure superior weatherproofing.

✅ Size: 12-14 x 20mm
✅ Head Type: Hex head (with seal)
✅ Tip Type: Self-drilling for fast and easy installation
✅ Finish: Class 4 for enhanced corrosion resistance
✅ Pack Quantity: 500
✅ Applications: Metal roofing, cladding, steel framing, and outdoor metal fixings
✅ Standards: Suitable for use in high corrosion zones