Stair treads B

• can be manufactured from any type of B sheet metal profile
• tread widths according to production profile widths 150, 200, 240, 250, 300 mm
• upon request, an anti-slip tread can be added in the form of a serrated strip on the leading edge
• rear beveling is not possible for profiles higher than 40 mm

Profile type		Dimensions L x B [mm]	Dimension d [mm]
BN-O / BN-G	240 / 50 / 2	600 x 240	120
BN-O / BN-G	240 / 75 / 2	800 x 240	120
BN-O / BN-G	240 / 75 / 2	1000 x 240	120
BN-O / BN-G	240 / 75 / 2	1200 x 240	120
BN-O / BN-G	270 / 50 / 2,5	600 x 270	150
BN-O / BN-G	270 / 50 / 2,5	800 x 270	150
BN-O / BN-G	270 / 75 / 2,5	1000 x 270	150
BN-O / BN-G	270 / 75 / 2,5	1200 x 270	150
BN-O / BN-G	300 / 50 / 2,5	600 x 300	180
BN-O / BN-G	300 / 50 / 2,5	800 x 300	180
BN-O / BN-G	300 / 75 / 2,5	1000 x 300	180
BN-O / BN-G	300 / 75 / 2,5	1200 x 300	180
BP	300 / 50 / 2	600 x 300	180
BP	300 / 50 / 2	800 x 300	180
BP	300 / 75 / 2	1000 x 300	180
BP	300 / 75 / 2	1200 x 300	180
BZ	240 / 50 / 2	600 x 240	120
BZ	240 / 75 / 2	800 x 240	120
BZ	240 / 75 / 2	1000 x 240	120
BZ	240 / 75 / 2	1200 x 240	120
BZ	270 / 50 / 2,5	600 x 270	150
BZ	270 / 50 / 2,5	800 x 270	150
BZ	270 / 75 / 2,5	1000 x 270	150
BZ	270 / 75 / 2,5	1200 x 270	150
BZ	300 / 50 / 2,5	600 x 300	180
BZ	300 / 50 / 2,5	800 x 300	180
BZ	300 / 75 / 2,5	1000 x 300	180
BZ	300 / 75 / 2,5	1200 x 300	180

Other dimensions upon request.

Hexagon head bolts	M 12 x 35	ISO 4017 (DIN 933)
Hexagon nuts	M 12	ISO 4032 (DIN 934)
Washers (2 pcs)	M12	ISO 7089 (DIN 125A)

During installation it is necessary to check whether there is, due to tolerances of these structures, too much clearance between the side plate of the stair tread and the stringer. If so, this clearance must be shimmed with spacer washers before bolting the stair treads to the stringers. This will prevent damage to the welds of the stair treads.