Full Thread Hex Head carbon Steel 4.8 5.8 Self Drilling Metal Screws
Brand Name:HNF
Certification:ISO 9001
Model Number:#10 x 3/8"
Minimum Order Quantity:10000pcs
Delivery Time:5-15 WORKDAYS
Payment Terms:L/C, T/T, Western Union
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Jiaxing Zhejiang China
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B1306 Landmark Plaza No.1238 Hongxing Road JiaXing , ZheJiang , China 314001
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Product Details
Full Thread Hex Head carbon Steel 4.8 5.8 Self Drilling Metal Screws
1. Product Description
Self-Drilling Screws, also known as Tek screws, eliminate the need for a pre-drilled hole.Similar to a sheet metal screw, but it has a drill-shaped point to cut through the substrate to eliminate the need for drilling a pilot hole. Designed for use in soft steel or other metals. The points are numbered from 1 through 5, the larger the number, the thicker metal it can go through without a pilot hole. A 5-point can drill a 0.5 in (12.7 mm) of steel, for example.he length of the drill point determines the material thickness which the screw can reliably penetrate.When selecting a self-drilling screw design, it is important to consider the material thickness and type of materials to be joined.
2. Specification
| Material | C | Si | Mn | P | S | Ni | Cr | Mo | Other |
| 201 | 0.15 | 1 | 5.5-7.5 | 0.06 | 0.03 | 3.5-5.5 | 16-18 | N≤0.25 | |
| 304 | 0.08 | 1 | 2 | 0.045 | 0.03 | 8.0-10.0 | 18-20 | ||
| 304L | 0.03 | 1 | 2 | 0.045 | 0.03 | 8.0-12.0 | 18-20 | ||
| 321 | 0.08 | 1 | 2 | 0.045 | 0.03 | 8.0-13.0 | 17-19 | Ti≤5*C% | |
| 316 | 0.08 | 1 | 2 | 0.045 | 0.03 | 10.0-14.0 | 16-18 | 2-3 | |
| 316L | 0.03 | 1 | 2 | 0.045 | 0.03 | 10.0-15.0 | 16-18 | 2-3 | |
| 309S | 0.08 | 1 | 2 | 0.045 | 0.03 | 12.0-15.0 | 22-24 | ||
| 410 | 0.15 | 1 | 0.03 | - | 11.5-13.5 | ||||
| 420 | 0.26-0.4 | 1 | 0.03 | - | 12-14 | ||||
| 430 | 0.12 | 0.75 | 1 | 0.04 | 0.03 | - | 16-18 |
About Product :
| Main products | self tapping Screws, self drilling screw |
| Size Range | Diameter:6#---2inch, Length:1/2inch---30inch(Customized is acceptable) |
| Standard | ANSI,UNI,DIN,BS,JIS,AS,GB,ISO,EN |
| Material | Normal stainless steel;Super Alloy Stainless Steel |
| Grade | metric: grade 2, grade 5, grade 8 and super alloy: 1.4529, 1.4539, 1.4980(alloy 286), 2.4602, 2.4605, 2.4610, 2.4952 (Nimonic 80A), 2.4819, Incoloy (825800800H), Inconel (600601625718), Monel400, etc |
| Surface | self finish plain, zinc plated, galvanized |
| Others | Non-standard/standard/OEM/ODM/Customized service are provided. |
3.Application
Self-drilling screws have hardened drill points that will drill and thread in structural steel, mild steel, aluminum and wood. Hex Washer (Unslotted) Head Self Drilling Screws (Zinc-Plated Steel) are designed for use in metal applications.A self drilling screw, however, has a notched point that acts as a drill point and therefore does not require a pre-drilled hole before installing. The generic name for these screws are Self Drilling,These drill points are manufactured in the same method as the high speed drill bits. Self-drilling screws are available in a variety of finishes with unique product features to suit a wide range of environmental conditions.
4. Advantages
1· High-hardness points and lead threads for drilling and tapping
2· Lower-hardness in load-bearing threads for ductility
3· Virtually immune to delayed embrittlement failures
4.· Stalgard coating provides 800 hours of salt spray resistance (per ASTM B117)
5. More pictures
Full Thread Hex Head carbon Steel 4.8 5.8 Self Drilling Metal Screws
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