M3-M12 Excellent Countersunk Head Roof Self-Tapping Self Drilling Screws
- Product Item : S-00HW01-AS
- Category: Self-Drilling Screw
- Available Material: Carbon steel, Stainless Steel, etc. OEM according to your request
- Head types: Hex, Pan, Truss, Countersunk, Wafer etc. Drive types: Hex, cross recess, torx, slotted, etc. OEM according to your request
- Thread size: ST4, ST4.8, ST6.4 etc. Length: 16mm, 18mm, 20mm, 1/2'', 3/4'' ,etc. OEM according to your request
- Finishing : Blue Zinc plated, White Zinc plated, Decromet, Plain, Customized
<p "="" style="box-sizing: border-box; margin: 0px 0px 10px; color: rgb(51, 51, 51); font-family: Arial, "microsoft yahei", Helvetica, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; background-color: rgb(255, 255, 255);">Self-drilling screws eliminate the need for a pilot hole but can tap as well. Self-tapping screws tap their own threads but cannot drill through metal and require a pilot hole. These screws are not interchangeable, and mixing up the two can cause many headaches or possible failures in the field.<span "="" style="box-sizing: border-box; color: rgb(51, 51, 51); font-family: Arial, "microsoft yahei", Helvetica, sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; font-size: 16px; background-color: rgb(255, 255, 255);">What is the difference between self-drilling screws and regular screws?<br "="" style="box-sizing: border-box; color: rgb(51, 51, 51); font-family: Arial, "microsoft yahei", Helvetica, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; background-color: rgb(255, 255, 255);"><p "="" style="box-sizing: border-box; margin: 0px 0px 10px; color: rgb(51, 51, 51); font-family: Arial, "microsoft yahei", Helvetica, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; background-color: rgb(255, 255, 255);">Head and drive styles vary; self-drilling screws are most commonly Phillips, hex, or square. Unlike self-tapping screws, self-drilling screws need no pilot hole to cut and fasten; they can drill, tap, and fasten in one go, which saves you the extra step of drilling, then fastening.<p "="" style="box-sizing: border-box; margin: 0px 0px 10px; color: rgb(51, 51, 51); font-family: Arial, "microsoft yahei", Helvetica, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; background-color: rgb(255, 255, 255);"><p "="" style="box-sizing: border-box; margin: 0px 0px 10px; color: rgb(51, 51, 51); font-family: Arial, "microsoft yahei", Helvetica, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; background-color: rgb(255, 255, 255);">Some self-tapping screws such as the Tek screw brand, are also self-drilling, which means that in addition to the thread-forming section there is also a fluted tip much like the tip of a center drill. These screws combine hole drilling, threading and fastener installation into one driving motion (instead of separate drilling, tapping, and installing motions); they are thus very efficient in a variety of hard-substrate applications, from assembly lines to roofing. Some types incorporate a sealing washer, for fastening roofing sheets to purlins.<p "="" style="box-sizing: border-box; margin: 0px 0px 10px; color: rgb(51, 51, 51); font-family: Arial, "microsoft yahei", Helvetica, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; background-color: rgb(255, 255, 255);">
Available Material |
Carbon steel, Stainless Steel, Brass, etc. OEM according to your request |
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Head types |
Hex, Pan, Truss, Countersunk, Button,Flat, Oval, etc |
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Standard |
DIN, ANSI, ASME, GB, ISO, JIS, BA, ANSI, Non-standard |
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Length |
16mm, 18mm, 20mm, 1/2'', 3/4'' ,etc., OEM according to your request |
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Thread size |
ST4, ST4.8, ST6.4 etc, OEM according to your request |
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Grade Available |
Grade 2-8, 4.8, 6.8, 8.8, 10.9, 12.9, Gr1, Gr2, etc. OEM according to your request |
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Application Industry |
Metal Roofing, Drywall Installation, Attaching Sheet Metal, Connecting Plastics, Building Sheds etc. |
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Delivery |
3-20 days |
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Packing |
PE/PP Bag + Carton, or as per client's requirement |