Woodscrews Silicon Bronze true wood screw style slotted drive 47 sizes
These bronze woodscrews have a considerably higher tensile strength than brass screws.
Their resistance to dezincification is also greater and therefore ideal for high quality marine work and under water use. They are resistant to acids and unlike stainless steel they are impervious to the chemicals used to treat, treated timbers.
They are a true woodscrew (tapered and solid, not rolled).
Silicon Bronze Woodscrews
These solid type # 651 silicon bronze woodscrews have a considerably higher tensile strength than brass screws.
Their resistance to dezincification is also greater and therefore ideal for high quality marine work and under water use. They are resistant to acids and unlike stainless steel they are impervious to the chemicals used to treat, treated timbers.
For those not used to Bronze (rather than brass ) bronze has a very large copper content giving it close to the shear strength of steel (&stainless steel). This means the bronze bolts are often used in the mining industry as the shear strength being slightly less than steel allows the bronze to be used as a sacrificial bolt - when that shears they know the steel is not far behind and must either cease work or replace the bronze bolt.
They are a true woodscrew (tapered and solid, not rolled).
We are landing new stocks monthly, so extra sizes are available
Gauge
Head OD (mm)
Countersink Height (approx mm)
Shank OD (mm)
Drive Size
Thread Length
4G 5.3
1/3 plain - 2/3 threaded
5G
6G
6.4
2.4
3.4
1/4"
7G
7.1
2.4
3.7
1/4"
8G
7.9
2.9
4
5/16"
9G
9.3
3.4
4.6
3/8"
10G
9.1
3
4.7
3/8"
12G
10.4
3.9
5.3
7/16"
14G
11.8
4
6
1/2"
16G
13.1
4.5
6.6
1/2"
18G
15
5.3
7.3
9/16"
20G
15.2
5.3
8
9/16"
24G
18.2
6.3
9.3
9/16"