Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Connectors and Fasteners |
| Origin | - |
| Material Grade | 304/316 Stainless Steel |
| Head Type | Countersunk Flat Head |
| Drive Type | Phillips #2 |
| Thread Diameter | 4.2 mm (M4.8) |
| Point Style | Twin-Tail Self-Drilling |
| Surface Finish | Plain Stainless Steel |
| Primary Application | Corrugated Steel Sheets |
| Package Quantity | 100 Pieces per Box |
| Max Drill Capacity | Up to 3mm Carbon Steel |
| Country of Origin | Imported |
Anonymous
Mar 28, 2026
Rating: 5/5
Perfect for my shed roof
These screws drilled through the corrugated sheets effortlessly. No pre-drilling needed and the countersunk head sits flush.
Anonymous
Mar 21, 2026
Rating: 5/5
Easy installation
Saved so much time on pre-drilling. The twin-tail design really helps with alignment on curved sheets.
Anonymous
Mar 16, 2026
Rating: 5/5
High quality steel
I used these near the coast and haven't seen any rust after 6 months. The 316 grade is definitely worth it for outdoor projects.
Anonymous
Feb 18, 2026
Rating: 5/5
Bulk order satisfied
Ordered multiple boxes for a commercial job. Consistent quality across the batch and delivery was prompt.
Anonymous
Feb 09, 2026
Rating: 4/5
Good value
Works well overall. Just be careful not to apply too much torque or the head might strip slightly. Good product for the price.
Q: Are sealing washers included with these screws?
A: No, this listing is for the screws only. Sealing washers are sold separately if needed for waterproofing.
Q: What thickness steel can this drill through?
A: These screws are designed to drill through carbon steel up to 3mm thick without pre-drilling.
Q: What is the difference between 304 and 316 options?
A: 316 Stainless Steel offers superior corrosion resistance, especially against chlorides and saltwater, compared to 304.
Q: Can I use these on aluminum sheets?
A: Yes, they can be used on aluminum, but please ensure proper spacing to avoid galvanic corrosion issues.
Q: What driver bit do I need for these?
A: A standard Phillips #2 driver bit is recommended for best engagement and torque transfer.
Large Size Thickened Felt Mat for Calligraphy, Wool Felt Pad for Brush Practice, Traditional Chinese Painting Desk Mat
$13.50
Creative Studio Sign Custom Door Plate Company Billboard LOGO Design Storefront Display
$119.00
Router Storage Box, Cable Organizer, WiFi Set-Top Box Stand, Gigabit Broadband Shelf with Wall Mount
$23.60
Baby Rattle with Teether for 0-6 Month Newborns, Sand Shaker and Hand Drum for Visual and Auditory Tracking
$10.50
Splicable Folding Food Warmer Partition Temperature Control Insulation Plate Hot Dish Plate Induction Cooker Plate Constant Temperature Heating Food Warmer Table Mat
$315.00
Marie's Kneaded Eraser Cotton for Sketching, Student-Use Blending Stump, Makeup Sponge for Art Students, Paper Blending Tool, Soft Absorbent Water-Drop Sponge Ball for Sketching
$8.33
Soft Cheese Processing Equipment, Lab-Type Cheese Stretching and Mixing Machine, Multi-Function Hot Water Stretching Unit
$210,210.00
Imported IKO Needle Roller Bearings TAF121912, 121915, 121916, 142212, 142216, 142220
$26.00
Portable Watercolor Sketchbook – 100% Cotton Mini Square Pocket Book for Travel, On-the-Go Sketching, Tear-Off Art Pages
$10.90
Dongguan Rotary Pad Printer Manufacturer - Fully Automatic 4-Station Pad Printer for Plastic, Metal, Text, Patterns, and Logos
$500.00
Custom Solid Wood Plaque, Antique-Style Wooden Sign with Engraving, Shop Signboard, Couplet, Carved Wood Plaque
$17.00
No-Drill Over-Toilet Storage Rack for Bathroom Wall Gap Behind Tank
$24.55
Upgraded Breakfast Food Warmer Display Cabinet - For Fried Chicken, Pies, Roasted Meat, with Crisp Preservation and Constant Temperature Control
$4,920.00
Butterfly Silicone Mold for Handmade Soap, Fondant, Chocolate, and Ice Cream
$14.00
Professional Music Services: Harmony Arrangement, Vocal Recording, Sheet Music, Mixing & Campus Orchestration
$20.00
Chunfei Grocery Store Yunan GR02 Gravel Bike Thru-Axle Disc Brake Light Load V Travel Many Rack Mounts
$6,445.00
![Pad Printing Silicone Head Mold with Blister Cover, Long Crystal Mold for Pad Printing Machines [Long Strip]](https://www.gosteppe.com/cache/small/product/270328/legacy-main-ca45adf23667d6b16fd9f3c4.webp)
Pad Printing Silicone Head Mold with Blister Cover, Long Crystal Mold for Pad Printing Machines [Long Strip]
$5.00
Remote-Controlled Automatic Fog Cannon for Xinjiang and Inner Mongolia Mines - Explosion-Proof, Anti-Freeze, Noise-Reducing Dust Suppression Sprayer for Coal Yards
$6,000.00
UV Glue for Bonding PET to Melamine Board, PC to Melamine Veneer, Invisible Adhesive for Glass Sliding Doors with UV Curing
$326.00
Mobile Welding Fume Purifier, Industrial Soldering Smoke Extractor, Welding Fume Collector and Exhaust Machine
$2,760.00
Upgraded Commercial Constant-Temperature Heated Display Cabinet for Fried Chicken, Meat Pies, and Breakfast Pastries
$5,510.00
2025 New Waterproof Swim Bag with Dry-Wet Separation - Lightweight Gym and Beach Tote for Men and Women
$14.80
4-Piece Canvas Stretching Tool Set with Wide-Jaw Pliers, Manual Staple Gun, and Starter Tool for Oil Painting Frames, Includes Tutorial
$10.20
Construction Anti-crack Steel Wire Mesh 4mm for Concrete Floors - Thickened Galvanized Iron Grid
$10.59
Japanese Dopamine Style Portable Retainer Case with Mirror - Storage Box for Invisible Aligners and Dentures
$16.00
Traditional Rattle Drum Toy for Infants - Old-Style Handheld Bell, Wave Shaker, and Sand Hammer for Newborns Aged 0-1 Year; Suitable for Boys and Girls
$6.90
Low-Temperature Plasma Oil Fume Purifier Electrostatic Ion Module Equipment Rubber Plastic Smoke Treatment Device
$1,600.00
Chunfei Grocery Store - Yun'an GR02 Gravel Bike, Thru-Axle, Disc Brake, Lightweight Touring with Multiple Rack Mounts
$7,977.00
Cashmir Blending Knife Replacement Head Set, Sketch Neony Blending Heads, Sponge Blending Heads, Breathing Cotton for Art Students
$4.34
Natural Amethyst, Rose Quartz, Clear Quartz, and Lemon Quartz Double-Pointed Tumbled Beads for DIY Bracelets, Necklaces, and Earrings
$1.70
![[M2-M20] Stainless Steel Spring Washer](https://www.gosteppe.com/cache/medium/product/16306/legacy-main-ef3d2dba3bde669d48e6cca2.webp)
