410 420 Ellow Zinc Needle Point Pan Head Tek Screws With Tapping Thread DIN7981
Brand Name:crever
Certification:ISO
Model Number:2.9x10--6.3x100mm
Minimum Order Quantity:Negotiable
Delivery Time:15-30 working days
Payment Terms:T/T, L/C, D/P
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Suzhou Jiangsu China
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Rongda Industrial Park, Xinhua Road, Wangting Town, Suzhou City, China
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410 420 Ellow Zinc Needle Point Pan Head Tek Screws With Tapping Thread DIN7981
1. Description:
The ability of a screw to advance when turned, while creating its own thread versus, say, machine screws which require a pre-threaded nut or other female insert. Self-Tapping screws can cut their own threads as the screw is driven in to the material. They function by having a cutting edge which drills away the material, making a tiny hole for the screw to go into. This has nothing to do with the point of the screw but has everything to do with the threads which are designed to cut through the material.
2. Specifications:
1. Name: DIN7981 A2 A4 Philips Self Tapping Screws Pan Head With Tapping Thread
2. Grade: C1018, C1022, SUS201,SUS304,SUS316,A2-70,A2-80,A4-80
3. Size: 2.9mmx10mm--6.3x100mm
4. Standard: DIN7981
5. Certification: ISO9001, SGS, CTI, ROHS
Product Name | DIN7981 pan head self tapping screws |
Material | stainless steel, carbon steel, alloy steel |
Color | yellow zinc, black phosphate, gray, white zinc, HDG, ruspert,
nickel and so on |
Standard | DIN GB ISO JIS BA ANSI |
Grade | C1018, C1022, SUS201, SUS304, SUS316, A2-70, A2-80, A4-80, 4.8 6.8
8.8 10.9 12.9 |
Brand | Crever Or customer own brand |
Drive | slotted, square, combination, torx |
Used | building industry machinery, decration, eletronical industry, wood
and so on |
3. Chemical composition of stainless steel (screws, bolts)
| stainless steel chemical composition | ||||||||
| Material | C max | Si max | Mn max | P max | S max | Ni max | Cr max | Mo max |
| SUS201 | 0.15 | 1 | 5.5-7.5 | 0.06 | 0.03 | 3.5-5.5 | 16-18 | |
| SUS304 | 0.08 | 1 | 2 | 0.045 | 0.03 | 8.0-10.0 | 18-20 | |
| SUS304L | 0.03 | 1 | 2 | 0.045 | 0.03 | 8.0-12.0 | 18-20 | |
| SUS305 | 0.12 | 1 | 2 | 0.045 | 0.03 | 10.5-13.0 | 17-19 | |
| SUS316 | 0.08 | 1 | 2 | 0.045 | 0.03 | 10.0-14.0 | 16-18 | 2.0-- 3.0 |
| SUS316L | 0.03 | 1 | 2 | 0.045 | 0.03 | 10.0-15.0 | 16-18 | 2.0-- 3.0 |
| SUS410 | 0.15 | 1 | 0.03 | - | 11.5-13.5 | |||
| SUS420 | 0.26-0.4 | 1 | 0.03 | - | 12-- 14 | |||
4. Technical specifications:
| Dia | Standard | Head Thickness Max | Head Dia Max | m approx. | Cross recess No. |
| 2.2 | 1.80 | 4.20 | 2.60 | H1 | |
| 2.9 | #4 | 2.20 | 5.60 | 3.00 | H1 |
| 3.5 | #6 | 2.60 | 6.90 | 4.20 | H2 |
| 3.9 | #7 | 2.80 | 7.50 | 4.40 | H2 |
| 4.2 | #8 | 3.05 | 8.20 | 4.60 | H2 |
| 4.8 | #10 | 3.55 | 9.50 | 5.00 | H2 |
| 5.5 | #12 | 3.95 | 10.80 | 6.50 | H3 |
| 6.3 | #14 | 4.55 | 12.50 | 7.10 | H3 |
5. Advantages:
1. Quality control: we make 100% quality test during producing and before shipping
2. Rich experience: we have been export screws for more than 20 years
3. Competitive prices: the better quality, but cheaper prices
4. Timely quotation: send you prices within one day
5. Good services: we supply OEM, ODM,OBM services and best after-sale services
6. Punctual delivery: we can ship every order without delay
6. Pictures for more referance:
A2 A4 Philips Self Tapping Screws Pan Head Cold Forging With Tapping Thread
410 420 Ellow Zinc Needle Point Pan Head Tek Screws With Tapping Thread DIN7981
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