What you get

No.6 Countersunk Self Tapping Screws
No.6 x 1/2" (13mm)

The Spec
No.6 x 1/2" (13mm)
Stainless steel (316 A4)
Black zinc coating
DIN 9782 spec


Further Information
Gauge / (Metric) - dk(max) k(max)
#2 (2.2)   -   4.3  1.3
#4 (2.9)   -   5.5  1.7
#6 (3.5)   -   6.8  2.1
#7 (3.9)   -   7.5  2.3
#8 (4.2)   -   8.1  2.5
#10 (4.8) -   9.5     3
#12 (5.5) - 10.8  3.4
#14 (6.3) - 12.4  3.8
Advised Length in Inches / Actual Length in Millimetres
3/16" / 4.5
1/4" / 6.5
5/16" / 8.0
3/8" / 9.5
1/2" / 13
5/8" / 16
3/4" / 19
7/8" / 22
1" / 25
1.1/4" / 32
1.1/2" / 38
1.3/4" / 45
2" / 50
2.1/4" / 55
2.1/2" / 60
2.3/4" / 70
3" / 80
3.1/2" / 90
4" / 100