DrillFast® stainless heavy section mainfix fastener, with 29mm washer

A2/304 grade stainless steel fastener for fixing to heavy section steel.

Supplied pre-assembled with a 29mm diameter sealing washer, normally used for fastening rooflights.

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DrillFast® stainless heavy section mainfix fastener, with 29mm washer

A2/304 grade stainless steel fastener for fixing to heavy section steel.

Supplied pre-assembled with a 29mm diameter sealing washer, normally used for fastening rooflights.

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	Years / Environment
	Interior	Semi-interior	Rural	Urban	Industrial / Coastal	Marine	Swimming pools & Chemical plants
Corrosivity Category	C1	-	C2	C3	C4	C5	-
Austenitic Stainless Steel A2 Grade (304)	30	25	25	25	15	0	0

	Years / Environment
	Interior	Semi-interior	Rural	Urban	Industrial / Coastal	Marine	Swimming pools & Chemical plants
Corrosivity Category	C1	-	C2	C3	C4	C5	-
Austenitic Stainless Steel A2 Grade (304)	30	25	25	25	15	0	0

	Years / Environment
	Interior	Semi-interior	Rural	Urban	Industrial / Coastal	Marine	Swimming pools & Chemical plants
Corrosivity Category	C1	-	C2	C3	C4	C5	-
Austenitic Stainless Steel A2 Grade (304)	30	25	25	25	15	0	0

Fastener SKU	Min	Max
DF12-SS-A29-5.5 x 40	0 mm	4 mm
DF12-SS-A29-5.5 x 60	0 mm	24 mm

Fastener SKU	Washer	Min	Max
DF12-SS-A29-5.5 x 40	A29 Washer	0 mm	12 mm
DF12-SS-A29-5.5 x 60	A29 Washer	0 mm	32 mm

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.