1B Tube clamps
BMA Base flanged clamps, multi-piece, aluminum

BMA Base flanged clamps, multi-piece, aluminum

Product description

Base flanged clamps BMA of die-cast aluminum have a split clamping point with round or square cross-section that has been partially machined by cutting methods.

The bore at the clamping point is arranged perpendicular to the faces of the flanges. It receives typically available construction tubes via multiple ribs in the cross-section of the bore.

At the screw points, hex socket cap screws or adjustable hand levers reduce the bore cross-section for clamping.

Adjustable hand levers are intended for repeated, tool-free clamping. Under the designation HSK, these are available separately for individual use and in other designs. Compared with the tool-operated hex socket cap screw, the clamping force achievable with an adjustable hand lever is lower due to the shorter lever length.

RoHS-compliant product


  • Adjustable hand levers HSK

On request

  • Clamping point with special diameter
  • Screw points with hex head screws or mixed screw / adjustable hand lever element
  • Surface ball-burnished, anodized or powder-coated in other RAL colors
 BMA Base flanged clamps, multi-piece, aluminum d<sub>1</sub> / s: V - Square
Surface: 8 - blasted, matt
 BMA Base flanged clamps, multi-piece, aluminum d<sub>1</sub> / s: B - Bore
Surface: 2 - Black, textured powder-coated, RAL 9005
 BMA Base flanged clamps, multi-piece, aluminum d<sub>1</sub> / s: B - Bore
Surface: 8 - blasted, matt
 BMA Base flanged clamps, multi-piece, aluminum d<sub>1</sub> / s: V - Square
Surface: 2 - Black, textured powder-coated, RAL 9005
Article options / Table

Screw points

1Hex socket cap screw steel, zinc-plated DIN 912-8.8 and lock nut steel DIN 985-8, zinc-plated / grub screw DIN 914 steel, zinc-plated
2Hex socket cap screw stainless steel DIN 912-A2-70 and lock nut stainless steel DIN 985-A2, glide coating
Show columns
l1l2l3l4tx2y1y2y3y4Hex socket
cap screws
recom. hand lever
HSK for z
lever length
B 20V 2075869531033076072353050M8-3578
B 25V 2575869531033076072353050M8-3578
B 30V 3075869531033076072353050M8-3578
B 40V 4011919882156471490108504576M10-6092
B 42-11919882156471490108504576M10-6092
B 45V 4511919882156471490108504576M10-6092
B 48-11919882156471490108504576M10-6092
B 50V 5011919882156471490108504576M10-6092
Build & Price
Bore d1
Square s
Screw points

Part number
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This article is RoHS-compliant in application of Annex III., which means it complies with EU Directive 2011/65/EU, including extension (2015/863/EU), for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances)).

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