Hex Head Coarse Thread Stainless Steel

These Hex Head Coarse Thread Stainless Steel Tek Screws are specifically designed for securing profiled cladding sheets into cold rolled rails and purlins with a thickness between 1.0mm and 4.0mm. Manufactured from A2 stainless steel, they are particularly suitable for use in demanding environments where superior corrosion resistance is essential. By using stainless steel fixings, the risk of bimetallic reaction is significantly reduced when working with aluminium or stainless steel sheeting, brackets, or other building components. This makes them well-suited to construction projects in coastal, industrial, and architectural environments where long-term material compatibility is a concern. With a hex head for secure drive control and a coarse thread pattern for reliable grip in thinner steel sections, these screws ensure efficient installation and dependable performance.

Additional Information

Part No.	Thread Size (mm)	Drilling Capacity (mm)	Min/Max Fixture (mm)	Screw Length (mm)
A2HC42019	4.2	1.0 – 4.0	1 – 7	19
A2HC48016	4.8	1.0 – 4.0	1 – 5	16
A2HC48019	4.8	1.0 – 4.0	1 – 7	19
A2HC55019	5.5	1.0 – 4.0	1.2 – 4	19
A2HC55025	5.5	1.0 – 4.0	1.2 – 10	25
A2HC55032	5.5	1.0 – 4.0	1.2 – 17	32
A2HC55038	5.5	1.0 – 4.0	1.2 – 23	38
A2HC55043	5.5	1.0 – 4.0	1.2 – 28	43
A2HC55050	5.5	1.0 – 4.0	1.2 – 35	50
A2HC55070	5.5	1.0 – 4.0	20 – 55	70
A2HC55100	5.5	1.0 – 4.0	50 – 85	100
A2HC55130	5.5	1.0 – 4.0	80 – 115	130
A2HC55160	5.5	1.0 – 4.0	110 – 145	160