50pcs M4.2 Self-Drilling Countersunk Screws 410 Stainless Steel
50pcs M4.2 Self-Drilling Countersunk Screws 410 Stainless Steel
Details
50-Pack M4.2 Self-Drilling Countersunk Screws – 410 Stainless Steel
Get the job done faster with these M4.2 self-drilling countersunk screws from JARBLUE. Engineered from 410 stainless steel, these Grade 4.8 fasteners drill their own pilot hole as they drive, eliminating the need for pre-drilling in most metalworking and construction applications. The flat countersunk head sits flush for a clean, professional finish every time.
Key Features
- Self-Drilling Tip: Built-in drill tail cuts through material quickly without a separate pilot hole
- 410 Stainless Steel: Corrosion-resistant, high-strength material ideal for indoor and outdoor projects
- Countersunk Flat Head: Sits flush with the surface for a neat, snag-free finish
- Phillips Cross Drive: Compatible with all standard Phillips/cross-head screwdrivers and power bits
- Grade 4.8 Strength: Reliable holding power for a wide range of metalworking, woodworking, and construction tasks
- CE Certified: Meets international quality and safety standards
- 50-Piece Lot: Generous pack size keeps your workshop stocked for multiple projects
Specifications
| Model | M4.2 |
| Material | 410 Stainless Steel |
| Grade | 4.8 |
| Head Style | Flat / Countersunk |
| Drive Style | Phillips (Cross Bit) |
| Screw Type | Self-Drilling / Self-Tapping |
| Colour | Silver |
| Quantity | 50 Pieces per Lot |
| Certification | CE |
| Country of Origin | Made in China |
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Learn more: OSHA guidance on hand and power tools
Frequently Asked Questions
Q: Do these M4.2 self-drilling screws require pre-drilling a pilot hole?
A: No! The specially designed drill-tail tip on these M4.2 self-drilling screws allows them to bore their own hole as they are driven into the material, saving you time and eliminating the need for a separate pre-drilling step in most metalworking and sheet metal applications.
Q: What type of screwdriver or bit do these Phillips countersunk screws use?
A: These screws feature a standard Phillips (cross-bit) drive, compatible with any Phillips #2 screwdriver, manual driver, or power drill bit — tools you likely already have in your workshop.
Q: Are these stainless steel self-drilling screws suitable for outdoor use?
A: Yes. The 410 stainless steel construction provides strong corrosion resistance, making these screws a reliable choice for both indoor and outdoor metalworking, roofing, cladding, and construction projects.
Q: How many screws come in each pack?
A: Each lot contains 50 pieces of M4.2 self-drilling countersunk screws, giving you a generous supply for multiple tasks on a single order.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.
Materials + Care
We prioritize quality in selecting the materials for our items, choosing premium fabrics and finishings that ensure durability, comfort, and timeless appeal.
Shipping + Returns
We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.