Stainless Steel Hex Washer Head Self-Drilling Screw (ISO 15480)
Self-drilling screws (also called drill-tail screws, tek screws or
roofing screws) with a hex washer head and a built-in drill point.
The drill tip cuts through colour steel tile, thin steel sheet and
light-gauge steel studs in one operation - no pre-drilling needed.
Four diameters 4.2 / 4.8 / 5.5 / 6.3 mm, lengths 13-125 mm, 45 sizes.
Packed by bag: 50 pcs per bag for 4.2 and 4.8; 30 pcs per bag for
5.5 and 6.3.
Typical use: colour steel roofing and wall cladding, steel-structure
workshops, light steel keel, ducting, signboards and site fencing.
Full-standard quality: manufactured strictly to standard, genuine
full-size threads and dimensions, no undersized stock.
Why buy from us
- Full-standard (zheng biao) quality on every fastener we supply
- Self-drilling design saves one whole work step on site - no pilot hole
- Mixed-SKU consolidation: self-drilling screws, drywall screws, bolts,
nuts and anchors loaded in one shipment - Neutral packing or OEM labelling to your requirements
Ordering information
Please state: diameter and length list, number of bags, steel thickness
to be drilled, destination country and port, packaging and labelling
requirements. We will quote FOB / CFR / CIF.





