White Zinc Partical Thread Self Tapping Screws , DIN7981 Pan Head
Self Tappers 316
1. Introduction of self tapping screws:
Stainless steel phillips pan head sheet metal screws will have no
problem punching through a thin or light guage sheet metal but will
require a pilot hole for a thicker guage metal; the phillips drive
has a tendency to slip if there is too much torque applied during
installation and these machine screws being made of a high quality
stainless steel which is softer than other non corrosion resistant
fasteners are also susceptible to stripping so it is recomended to
use a slower speed or to set the clutch on the driver so when the
machine screw is fastened completely the drill does not shred the
phillips drive.
Phillips pan head sheet metal screws with a self tapping thread
patern that forms its own threads in the material it is being
screwed into and is mainly used for attatching two pieces of metal
together but also works great in wood and plexiglass because of the
coarse thread.
Pan heads have a domed top with a flat load bearing surface on the
underside that will hold materials being fastened firmly together.
Made from stainless steel grade 18-8 which offers a high level of
chemical and corrosion resistance that will out perform and out
last all zinc plated fasteners for years with out the need to
perform costly and time consuming maintenance; 18-8 stainless steel
pan head sheet metal screws are a better choice than 410 self
drilling screws in out door applications that will be visible
because unlike 410 stainless with a high iron content these screws
have a low iron content and will not rust or turn red.
Fastenere brand stainless steel sheet metal screws offer the
corrosion resistance and strength that makes them the best choice
for an application that is exposed to a wet or damp enviroment and
will withstand the test of time
2. Descriptions:
1. Name: DIN7981 stainless steel pan head self tapping screws,
sheet metal screws
2. Grade: C1018, C1022, SUS201,SUS304,SUS316,A2-70,A2-80,A4-80
3. Size: 3.5mmx10mm--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 | C1022, SUS201, SUS304, SUS316, A2-70, A2-80, A4-80, 6.8 8.8 10.9
12.9 |
Brand | Crever Or customer own brand |
Thread | AB, A thread |
Used | building industry machinery, decration, eletronical industry, wood
and so on |
3. Applications:
DIN 7981 is cross recess pan head self tapping, also can called
round head self tapping screw. Self - tapping Screw is in metal or
nonmetal material drilled are cooperate with one of the female
thread tapping out their kind of threaded fasteners. The Self
Tapping Metal Screws are widely uesd in machinery, equipment,
vehicles, ships, railways, bridges, buildings, structures, tools,
equipment, instruments and so on
4. Drawing specifications:
| Self tapping screw ASA TYPE A |
| sizes | thread No/P(T) | outer dia. | rolling dia. |
| | | Max | Min | Max | Min |
| No.0 | 40 | 1.52 | 1.44 | 1.20 | 1.15 |
| No.1 | 32 | 1.90 | 1.82 | 1.50 | 1.45 |
| No.2 | 32 | 2.23 | 2.13 | 1.80 | 1.75 |
| No.3 | 28 | 2.56 | 2.46 | 2.10 | 2.05 |
| No.4 | 24 | 2.89 | 2.79 | 2.30 | 2.25 |
| No.5 | 20 | 3.30 | 3.20 | 2.65 | 2.60 |
| No.6 | 18 | 3.58 | 3.45 | 2.80 | 2.75 |
| No.7 | 16 | 4.01 | 3.86 | 3.15 | 3.10 |
| No.8 | 15 | 4.26 | 4.11 | 3.35 | 3.30 |
| No.9 | 14 | 4.55 | 4.40 | 3.50 | 3.45 |
| No.10 | 12 | 4.92 | 4.77 | 3.75 | 3.70 |
| No.12 | 11 | 5.60 | 5.46 | 4.40 | 4.35 |
| No.14 | 10 | 6.45 | 6.29 | 5.10 | 5.05 |
| No.16 | 10 | 7.11 | 6.96 | 5.70 | 5.65 |
| No.18 | 9 | 7.77 | 7.62 | 6.10 | 6.05 |
4. Advantage:
| 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 | we can 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 |
5. More Pictures:
DIN7981 Pan head self tapping screws, sheet metal screws
