Double Threaded Roofing Screws

• Material: Carbon Steel
• Material Grade: C1022
• Heating: Tempered
• Type: Hexagon Head with Flange
• Head Style: Hexagonal
• Connection: Self Tapping Screw
• Model NO.: 5.5*100
• Grade: 8.8
• Transport Package: Carton, Pallet
• Specification: 10x1 inch
• Trademark: TS
• Origin: Zhajiang China
• HS Code: 73181200
• Production Capacity: 100 Tons/Month

Product Description

Double Threaded Roofing Screws
With transparent rubber washer
C1022 steel hardend, yellow galvaized
More details please visit us at selfdrillingscrews. Cn

All standard and customized self drilling screws
DIN7504-k, p, n
Hex flange head, DIN7504-K or ANSI B18.2.1
Csk head, DIN7504-p
Pan head DIN7504-n

Optional Head Type:

Hex flange head or hex washer head

Metric sizes as per DIN7504-K

3.5X15, 19, 25, 30mm

4.2X19, 25, 30 40, 50

4.8X19, 25, up to 60

5.5X30, up to 75

6.4X40, 50, 60 up to 100

ANSI inch specifications,

#6X3/4 up to 1-1/4

#8X3/4 up to 2

#10X3/4 up to 3

#12X1 up to 5

#14X1 up to 6 inch
Slotted pan head and flat head

Counter sunk head or round head

Material: C1022 steel, stainless steel SS410