DrillFast® 35mm A4 stainless mainfix fastener, 19mm washer

A4/316 stainless steel fastener for fixing to light metal purlins and rails.

Supplied pre-assembled with a stainless steel / EPDM rubber 19mm diameter sealing washer, normally used in roof applications.

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DrillFast® 35mm A4 stainless mainfix fastener, 19mm washer

A4/316 stainless steel fastener for fixing to light metal purlins and rails.

Supplied pre-assembled with a stainless steel / EPDM rubber 19mm diameter sealing washer, normally used in roof applications.

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	Years / Environment
	Interior	Rural	Urban	Industrial / Coastal	Marine	Swimming pools & Chemical plants
Corrosivity Category	C1	C2	C3	C4	C5	-
Austenitic Stainless Steel A4 Grade (316)	40	40	40	25	25	0

Installation tool	Variable speed electric screw gun
Installation drive	Fixfast GreenDrive (8mm hex integral socket with retaining clip)
Installation speed	1500 RPM
Correct installation	Fasteners should be driven within three degrees of perpendicular to the surface of the fastened material. Use a depth-setting nosepiece to avoid over-driving, and do not over-tighten. Variants with bonded washers should not have the rubber compressed to less than two-thirds of its uncompressed height. Care should be taken when engaging and disengaging from the fastener head to avoid damage to the protective coating.
Handling	Fasteners may have sharp edges, and the use of power tools can be dangerous. Use personal protective equipment. Store fasteners in dry conditions. Inspect each fastener before use and do not use damaged fasteners.