Stainless Steel Self Drilling Screws
What are stainless steel self drilling screws? Stainless steel self drilling screws have a built-in drill-point tip that bores its own hole and cuts threads in a single pass, eliminating pre-drilling in metal. Made from hardened 410 stainless and premium Ultra Stainless, they combine the hardness a drill point needs with corrosion resistance for roofing, siding, and outdoor metal work.
Stainless Steel Self Drillers
Phillips Pan Head
Corrosion-resistant stainless self drilling screws with a rounded pan head and Phillips drive in 410 and Ultra Stainless, the general-purpose choice for metal.
Phillips Flat Head
Corrosion-resistant 410 stainless self drilling screws with a countersunk flat head and Phillips drive that bore their own hole and sink flush.
Phillips Modified Truss Head
Corrosion-resistant 410 stainless self drilling screws with an extra-wide truss head and Phillips drive that spread load across thin, soft material.
Phillips Pancake Head
Self-drilling screws with a thin, wide flat head and Phillips drive that sit nearly flush under overlapping panels.
Square Drive Pan Head
Corrosion-resistant 410 stainless self drilling screws with a rounded pan head and square drive that resists cam-out under drilling pressure.
Torx Star Drive Pan Head
Pan-head self-drilling screws with a Torx star drive that minimizes stripping under high torque.
Hex Washer Head
Corrosion-resistant stainless self drilling screws with a hex washer head in 410 and Ultra Stainless, driven with a nut driver for high torque and a wide clamp.
Hex Washer EPDM head
Corrosion-resistant 410 stainless self drilling screws with a hex washer head and bonded EPDM washer that seals the hole on metal roofing and siding.
410 vs Ultra Stainless self drillers
Both grades solve the core challenge of a stainless self driller, which is being hard enough to bore metal while resisting corrosion. 410 stainless is a hardenable grade that drills reliably and resists rust far better than plated steel, making it the standard choice for most metal roofing and panel work. Ultra Stainless is a premium option engineered for higher corrosion resistance while still drilling, a good pick where a longer service life or tougher exposure justifies the upgrade. Match the drill point to your metal thickness for a clean bore.
Why choose stainless steel self drilling screws
- No pilot hole: the drill point bores and threads in one pass.
- 410 hardness: hard enough to drill metal with strong corrosion resistance.
- Ultra Stainless upgrade: premium grade for higher corrosion resistance.
- Head range: pan, flat, pancake, and hex washer for any job.
Common applications for stainless self drilling screws
- Metal roofing and siding
- Thin-gauge steel and metal panels
- HVAC and ductwork
- Outdoor and higher-corrosion metal work (Ultra Stainless)
For screws that need a pilot hole, see stainless sheet metal screws, add sealing washers for weathertight roofing, and browse both the 410 stainless and Ultra Stainless self drilling ranges.
Stainless Steel Self Drilling Screws FAQ
What stainless grade are self drilling screws?
They are hardened 410 stainless and premium Ultra Stainless. Both are hard enough to drill metal, which the softer 18-8 and 316 grades cannot do reliably.
What is Ultra Stainless?
Ultra Stainless is a premium self drilling screw engineered for higher corrosion resistance than standard 410 while still boring its own hole, suited to tougher or longer-life outdoor metal work.
Why not 18-8 or 316 for self drillers?
18-8 and 316 are too soft to reliably drill metal. Self drilling screws need a hardenable grade like 410 or an engineered grade like Ultra Stainless for the drill point.