Class 4

All our class 4 coated screws are mechanically Galvanised. This coating process is used for thicker coated screws, 25microns and up. This process helps overcome hydrogen embrittlement (causes screws to snap) as is the case in Electroplating. Mechanically coated screws offer higher corrosion protection. As the Coating is thicker and all parts of the screws are coated during the rotation of the barrel of chemical.

Z4 fasteners have +/- 50 microns of a Zinc and Tin alloy coating with +/ 40 microns of a Ruspert 1000 Top Coat
METAL
DESCRIPTION HEADSTYLE DRILLING CAPACITY TOOL
10 x 45 MM WAFER - PH2 BIT
12 x 65 MM WAFER - PH3 BIT
12 x 85 MM WAFER - PH3 BIT
12 x 125 MM WAFER - PH3 BIT
12 x 50 MM HEX FLANGE HEAD WITH SEAL - 5/16 MAG SOCKET
12 x 65 MM HEX FLANGE HEAD WITH SEAL - 5/16 MAG SOCKET
12 x 85 MM HEX FLANGE HEAD WITH SEAL - 5/16 MAG SOCKET
14 x 115 MM HEX FLANGE HEAD WITH SEAL - 3/8 MAG SOCKET

STITCHING
DESCRIPTION HEADSTYLE DRILLING CAPACITY TOOL
12 x 22 MM HEX FLANGE HEAD WITH SEAL 1.5 MM 5/16 MAG SOCKET

TIMBER
DESCRIPTION HEADSTYLE DRILLING CAPACITY TOOL
12 x 50 MM HEX FLANGE HEAD WITH SEAL - 5/16 MAG SOCKET
12 x 65 MM HEX FLANGE HEAD WITH SEAL - 5/16 MAG SOCKET
12 x 85 MM HEX FLANGE HEAD WITH SEAL - 5/16 MAG SOCKET
14 x 115 MM HEX FLANGE HEAD WITH SEAL - 3/8 MAG SOCKET
14 x 125 MM HEX FLANGE HEAD WITH SEAL - 3/8 MAG SOCKET

Buildex Climaseal 4 Fasteners have 50 Microns of coating. The Climaseal 4 have a layered system combining the base material / coating which is a combination of zinc and tin with an aluminium polymer which acts as the barrier coat.
METAL
DESCRIPTION HEADSTYLE DRILLING CAPACITY TOOL
10 x 25 MM HEX FLANGE HEAD WITH SEAL 2.5 MM 5/16 MAG SOCKET
12 x 25 MM HEX FLANGE HEAD WITH SEAL 4.5 MM 5/16 MAG SOCKET
12 x 39 MM HEX FLANGE HEAD WITH SEAL 4.5 MM 5/16 MAG SOCKET
12 x 55 MM HEX FLANGE HEAD WITH SEAL 4.5 MM 5/16 MAG SOCKET
12 x 68 MM HEX FLANGE HEAD WITH SEAL 4.5 MM 5/16 MAG SOCKET
12 x 80 MM HEX FLANGE HEAD WITH SEAL 4.5 MM 5/16 MAG SOCKET

STITCHING
DESCRIPTION HEADSTYLE DRILLING CAPACITY TOOL
14 x 22 MM HEX FLANGE HEAD WITH SEAL 1.5 MM 5/16 MAG SOCKET

TIMBER
DESCRIPTION HEADSTYLE DRILLING CAPACITY TOOL
12 x 50 MM HEX FLANGE HEAD WITH SEAL - 5/16 MAG SOCKET
12 x 65 MM HEX FLANGE HEAD WITH SEAL - 5/16 MAG SOCKET
14 x 90 MM HEX FLANGE HEAD WITH SEAL - 5/16 MAG SOCKET