ISO 15480 Hex self-drilling screws with washer are Boltead’s main products, we manufacture and supply these products. The following is the basic information of our these products wood screws products.
Name | ISO 15480 Hex self-drilling screws | Materials | Carbon Steel/Stainless Steel |
Standards | DIN ISO ANC BSW JIS etc. | Strength level | 4.8 8.8 etc. |
Size | M4-M20 | Surface finish | ZP\BLACK etc. |
Length | 20-100 | Samples | Available |
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ISO 15480 Hex self-drilling screws with washer have a drill bit at the front end, no pre-drilling is required, and they can directly penetrate metal, plastic or wood, improving installation efficiency
ISO 15480 Hex self-drilling screws are Boltead’s main product. Hexagonal bolt heads provide better torque transmission, suitable for high-strength fixing needs, and can be tightened using wrenches or socket tools. Usually made of carbon steel or stainless steel, and treated with zinc plating, electroplating or Dacromet coating to improve corrosion resistance and service life.
The ISO 15480 Hex self-drilling screws we produce are generally classified according to whether the material is carbon steel or stainless steel. More specific classifications are as follows:
In addition to different materials and strengths, the biggest impact on these products is surface treatment. The following are the more common surface treatments for these products: black phosphate, grey phosphate, black zinc, zinc plated (ZP), color zinc plating (CZP /YZP), dacromet coating, etc.
ISO 15480 Hex self-drilling screws are sent from the raw material line to the final product. They generally go through the following process:
Annealing of raw materials – pickling – drawing – forming – grinding – heat treatment – surface treatment – classification – packaging – shipping
The rough schematic diagram is as follows:
For more information and knowledge about ISO 15480 Hex self-drilling screws, please check our blog
ISO 15480 Hex self-drilling screws with washer
Nominal size d | ST2.9 | ST3.5 | ST4.2 | ST4.8 | ST5.5 | ST6.3 | |
P | Pitch | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 |
a | Max | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 |
c | Min | 0.4 | 0.6 | 0.8 | 0.9 | 1 | 1 |
dc | Max | 6.3 | 8.3 | 8.8 | 10.5 | 11 | 13.5 |
Min | 5.8 | 7.6 | 8.1 | 9.8 | 10 | 12.2 | |
e | Min | 4.28 | 5.96 | 7.59 | 8.71 | 8.71 | 10.95 |
k | Max = nominal | 2.8 | 3.4 | 4.1 | 4.3 | 5.4 | 5.9 |
Min | 2.5 | 3 | 3.6 | 3.8 | 4.8 | 5.3 | |
kw | Min | 1.3 | 1.5 | 1.8 | 2.2 | 2.7 | 3.1 |
r1 | Min | 0.1 | 0.1 | 0.2 | 0.2 | 0.25 | 0.25 |
r2 | Min | 0.2 | 0.25 | 0.3 | 0.3 | 0.4 | 0.5 |
s | Max = nominal | 4 | 5.5 | 7 | 8 | 8 | 10 |
Min | 3.82 | 5.32 | 6.78 | 7.78 | 7.78 | 9.78 | |
Drilling depth or sheet metal thickness | Min | 0.7 | 0.7 | 1.75 | 1.75 | 1.75 | 2 |
Min | 1.9 | 2.25 | 3 | 4.4 | 5.25 | 6 | |
Lg min | – | – | – | – | – | – | |
①, ISO 10666 specifies the drill hole (diameter dp). |
Boltead’s delivery cycle is generally 7 to 15 days. If you need more product types and models, or need to customize, the delivery cycle will be longer. In this case, please confirm with our sales professional.
Boltead is a fastener manufacturer and supplier. We are the source factory. The introduction of Boltead can be found here!
Boltead can provide samples for your measurement and testing. The samples are free, and you only need to pay the shipping cost.
Of course. Boltead welcomes OEM/ODM orders. We can not only customize products for you, but also customize your product and its packaging.
For payment amounts <= $1000, 100% prepayment is required. For payment amounts >$1000, 30% prepayment is required, with the balance due before shipment.
Yes, we can provide most documents, such as material certificates, product testing certificates, certificates of origin, and insurance certificates.
Yes, Boltead can ensure the safe and reliable delivery of products to you. Our product packaging will be reinforced beyond the packaging you choose.
The shipping cost depends on the delivery method you choose. Express delivery is typically the fastest but also the most expensive option. Sea freight is the best solution for large quantities of goods. We can provide an accurate shipping cost only when we have detailed information about the quantity, weight, and method. Please contact us for more information.
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