DIN7981 stainless steel cross recessed pan head self tapping screw,
sheet metal screw, polish
1. Descriptions:
Sheet metal screws are also the go to fasteners for use with
plastic wall anchors in drywall.
Tapping screws are considered externally threaded fasteners that
"tap" their own mating threads in metallic and non-metallic (such
as plastic) materials.
Tapping screws, especially Type A, are referred to as "sheet metal
screws" because one of their first applications was in ventilation
ducts made of sheet metal.
They also make excellent fasteners for attaching metal hardware to
wood because the fully threaded shank provides good retention in
wood.
Pan heads are slightly rounded with short vertical sides. A Pan
head provides a low large diameter head, but with
characteristically high outer edge along the outer periphery of the
head where driving action is most effective for high tightening
torques. Phillips drive is x-shaped for installation with a phillip
screw driver.
The design is often criticized for its tendency to cam out at lower
torque levels than other "cross head" designs. There has long been
a popular belief that this was actually a deliberate feature of the
design, for the purpose of assembling aluminum aircraft without
over tightening the fasteners
2. Specifications:
1. Name: DIN7981 pan head self tapping screws, sheet metal screws
2. Grade: C1022, SUS201,SUS304,SUS316,A2-70,A2-80,A4-80
3. Size: 2.2mmx6.5mm--6.3x200mm
4. Standard: DIN7981
5. Drive: slotted, cross recessed, torx, square
6. Certification: ISO9001, SGS, CTI, ROHS
Product Name | DIN7981 pan head self tapping screws |
Material | stainless steel, carbon steel, alloy steel, brass and so on |
Color | yellow zinc, black oxide, 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 |
Thread | A thread, AB thread, full thread, half 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 Technical Data:
| Self tapping screw M/M TYPE AB(B) |
| sizes | thread No/P(T) | outer dia. | rolling dia. |
| | | Max | Min | Max | Min |
| 1.0 | 64 | 1.00 | 0.95 | 0.88 | 0.83 |
| 1.2 | 64 | 1.20 | 1.15 | 1.05 | 1.00 |
| 1.4 | 56 | 1.40 | 1.35 | 1.20 | 1.15 |
| 1.7 | 48 | 1.70 | 1.62 | 1.45 | 1.40 |
| 2 | 40 | 2.00 | 1.90 | 1.70 | 1.65 |
| 2.3 | 32 | 2.30 | 2.20 | 1.90 | 1.85 |
| 2.6 | 28 | 2.60 | 2.50 | 2.15 | 2.10 |
| 3 | 24 | 3.00 | 2.90 | 2.45 | 2.40 |
| 3.5 | 20 | 3.50 | 3.40 | 2.85 | 2.80 |
| 4 | 18 | 4.00 | 3.85 | 3.30 | 3.25 |
| 4.5 | 16 | 4.50 | 4.35 | 3.60 | 3.55 |
| 5 | 16 | 5.00 | 4.85 | 4.10 | 4.05 |
| 6 | 14 | 6.00 | 5.85 | 5.05 | 5.00 |
| 8 | 12 | 8.00 | 7.85 | 6.80 | 6.75 |
5. Why choose us:
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 checking:
DIN7981 stainless steel pan head self tapping screws
