Product Description
Roofing Screws with washer
High Anti-Corrosion Performance
Roofing Screw Hex Washer Head Painted
High performance anti-corrosion
500 Hrs up to 1800 Hrs NSS test no-rust
Stainless Steel 410 prill metal material
Packing: 1, 000 PCS per bag
Outer bucket, carton or DIY box options
Thread Dia. From 3.5 to 6mm
Length 10-300m
Product Parameters
Detailed Photos
For more decking screws, drywall screws, chipboard screws,
Please visit us at 3W transhow.en.made-in-china.com or transhow.en.made-in-china.com
For all self tapping screws and drilling screws!
More choice on deck screws, roofing screws, chipboard screws, drywall screws
1. Material: C1022 steel, C1018, SS304, SS316, SS410
2. ZP, YZP, mechanical galvanizing, brass, bronze coating,
Dacromet or Ruspert coating
Coating color: Green, yellow, black, brown, red, navi green, blue, silver
3. Drive style: Pozi , slotted, torx, square, socket
4. Head: CSK, pan head, flat head, buggle head
5. Standard: DIN7505, ANSI/JIS/GB
6. Packing: Blister bag, small box, bucket, plastic box, DIY box
More products information please visit us transhow.en.made-in-china.com
| Product specification |
Nominal thread (M)(mm) |
Nominal length(mm) |
inventory |
| 5.5*170 |
M5.5 |
170 |
200000 |
| 6.3*170 |
M6.3 |
170 |
200000 |
Recommend products
Introduction of Roofing screw
Roofing screw is a commonly used screw that uses a special tail and can be screwed in and out using a regular screwdriver. Because the tail is sharp, it can directly cut open the surface of the wooden board to achieve the purpose of screwing in.There is a plastic ring inside the screw cap, which should be used for sealing. This waterproof screw cap also has this type of plastic ring.
Why choose drill Roofing screws?
1. Easy to install: Self-drilling roofing screw is a screw that can tap its own hole as it is driven into the material. For hard substrates such as metal or hard plastics, the self-drilling ability is often created by cutting a gap in the continuity of the thread on the screw, generating a flute and cutting edge similar to those on a tap. Thus, whereas a regular machine screw cannot tap its own hole in a metal substrate, a self-drilling one can (within reasonable limits of substrate hardness and depth)
2. Strong tightening: The tail of the drilling screw is specially designed, which can directly cut the surface when screwing into the wood, so that it can be tightened more strongly.
3. Wide range of application: drilling screws are suitable for wood, fiberboard, cardboard and other materials, and have a wide range of use.
Drywall screws are always come with black phosphated or zinc coated which helps to minimize rusting and corrosion as the screws are exposed to wet joint compound or paint.
| specifications |
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| Regular Sizes |
ANSI inch specifications |
| 3.5x15, 19, 25, 30mm |
#6x3/4 up to 1-1/4 |
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| 4.2x19, 25, 30 40, 50 |
#8x3/4 up to 2 |
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| 4.8x19, 25, up to 60 |
#10x3/4 up to 3 |
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| 5.5x30, up to 75 |
#12x1 up to 5 |
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| 6.4x40, 50, 60 up to 100 |
#14x1 up to 6 inch |
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Practical scenario
Certifications
Material and product certification complete, rest assured to choice
Packaging & Shipping
Audited Supplier 
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