1/4" 1/2" 3/4" 3/8" 5/8" 5/16" Metal Black Oxide Flat Washers M2 M2.5 M3 M3.5 M4 M5 DIN 9021
Description
Self drilling self tapping screw is suitable for wood material use, that is, we often say wood screw, generally manual operation, due to human constraints, this kind of screw is generally very small, the scope of use is relatively narrow;
Self-drilling screw with tapping screw is combine tap and bolts, the front is a tap, followed by a thread, in generally softer materials, drilling and well can be directly turned into an empty, by tap tapping screw, followed by a bolt thread for the matter, if the screw diameter is small, the material is soft, not even use first punch, such as screws into the wood;
Usage: it is a kind of screw, mainly used for fixing color steel tile of steel structure, also can be used for fixing sheet of simple building. It cannot be used for metal-to-metal bonding. Material has iron, stainless steel two kinds.
Models: φ 4.2/ φ 4.8/ φ 5.5/ φ 6.3mm, the specific length can be negotiated according to requirements.
According to the different drill tail can be divided into: round head rice/cross/plum blossom, countersink head (flat head)/rice/cross/plum blossom, hexagonal hua Si, round head Hua Si (large flat head), horn head
- self-drilling screw DIN 7504K hexagonal washer head, has a special drill point that allows drilling thickness sheets depending on the screw diameter from 2 mm ( screw diameter 3,5) up to 6 mm (screw diameter 6,3). Available in box and blister to meet any consumer need.
DIN7504K, DIN7504L
Ind Hex Washer head Self Drilling Screw is one of the most popular item among all the kinds and it is also widely applied.
Landwide makes the screws with well-formed drilling point that enhances the drilling performance. Less effort is needed while driving through.
It is optional to assemble with EPDM bonded washer for a better water resistance, especially in outdoors.
Combined with the different thread type to fix steel to steel or to fix steel to wood.
Landwide Screw DNA
- Unique Point-to-Thread Design
Provides maximum pullout strength and prevents stripout. - Precision Convex Drill Point
Improves drilling performance while requiring less effort. - Non-Walking Point
Provides fast metal engagement. - Tough & Weather Resistant
From basic zinc coating to 3000 hours SST, a variety of coating options available to fit your environment. - EPDM Bonded Washer
Plus EPDM bonded washer, screw will become sutiable for exterior environment.
Application
- Fixing cladding and roofing applications to hot and cold rolled purlins and rails.
- Fastening liner panels and general components to steel.
- Fixing steel to steel.
Specification
Material | C1022 |
Type Head | Hex Head |
Thread | Fine thread |
Tail | Self-tapping, Self-drilling, reduced point, Type17, Fast Type |
Surface Treatment | White Zinc, Yellow Zinc, Ruspert, Dacroment |
Package | 500pcs/baox, 1000pcs/box, carton, w/o pallet or as customers' special request. |
Size | 4.2mm-6.3mm |
Length | 19mm-127mm |
Washer | Single washer, EPDM bonded washer, PVC washer |
| Screw thread d | ST3,5 | (ST3,9) | ST4,2 | ST4,8 | ST5,5 | ST6,3 |
| c | min. | 0,6 | 0,6 | 0,9 | 0,9 | 1 | 1 |
| dc | max. | 8,3 | 8,3 | 8,8 | 10,5 | 11 | 13,2 |
| min. | 7,6 | 7,6 | 8,2 | 9,8 | 10 | 12,2 |
| f | approx. | 0,4 | 0,4 | 0,4 | 0,5 | 0,5 | 0,5 |
| e | min. | 5,96 | 5,96 | 7,59 | 8,71 | 8,71 | 10,95 |
| k | max. | 3,45 | 3,45 | 4,25 | 4,45 | 5,45 | 6,45 |
| min. | 3,2 | 3,2 | 4 | 4,15 | 5,15 | 6,15 |
| k´ | min. | 1,55 | 1,55 | 1,9 | 2 | 2,7 | 3,3 |
| r | max. | 0,5 | 0,5 | 0,6 | 0,7 | 0,8 | 0,9 |
| s | nominal=max. | 5,5 | 5,5 | 7 | 8 | 8 | 10 |
| min. | 5,32 | 5,32 | 6,78 | 7,78 | 7,78 | 9,78 |
| t | min. | 1 | 1 | 1,2 | 1,4 | 1,6 | 1,8 |
| max. | 1,4 | 1,4 | 1,6 | 1,8 | 2 | 2,2 |
| Drilling range | from | 0,7 | 0,7 | 1,75 | 1,75 | 1,75 | 2 |
| to | 2,25 | 2,4 | 3 | 4,4 | 5,25 | 6 |
| dp | max. | 2,8 | 3,1 | 3,6 | 4,1 | 4,8 | 5,8 |
| l | lg |
| Nominal | min. | max. | min. |
| 9,5 | 8,75 | 10,25 | 2,85 | | | | | |
| 13 | 12,1 | 13,9 | 6,2 | 5,8 | 4,3 | 4,7 | | |
| 16 | 15,1 | 16,9 | 9,2 | 8,8 | 7,3 | 5,8 | 5 | |
| 19 | 18 | 20 | 12,1 | 11,7 | 10,3 | 8,7 | 8 | 7 |
| 22 | 21 | 23 | 15,1 | 14,7 | 13,3 | 11,7 | 11 | 10 |
| 25 | 24 | 26 | 18,1 | 17,7 | 16,3 | 14,7 | 14 | 13 |
| 32 | 30,75 | 33,25 | | 24,5 | 23 | 21,5 | 21 | 20 |
| 38 | 36,75 | 39,25 | | 30,5 | 29 | 27,5 | 27 | 26 |
| 45 | 43,75 | 46,25 | | | | 34,5 | 34 | 33 |
| 50 | 48,75 | 51,25 | | | | 39,5 | 39 | 38 |
Our range of product:
BOLTS: hex bolts, heavy hex bolts, hex flange bolts, carriage bolts, wheel bolts, stud bolts, square head bolts, T bolts, eye bolts, U bolts, hook bolts
NUTS: hex nuts, heavy hex nuts, hex flange nuts, nylon insert lock nuts, cap nuts, slotted nuts, rivet nut
WASHERS: flat washers, spring washers, lock washers
SCREWS: machine screws, self tapping screws, set screws, hex socket head cap screws, wood
screws, self drilling screws
Typical size
#10 self drilling screw
#10 x 3/4 self drilling screws
#10-16 x 3/4 self drilling screw
#12 self drilling screw diameter
#12 x 1/2 self drilling screw
#14 x 1 self drilling screw
#16 self drilling screw
#20 self drilling screw
#3 point self drilling screw
#5 self drilling screws
#6 self drilling screws
#8 self drilling screw diameter
#8 self drilling screws
#8 x 1/2 self drilling screw
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