Button Head – BHCS

Allen Button Head BHCS

The Socket Button Head Screw design as per ISO 7380-1 is primarily used where a lower profile head is required and for aesthetical reasons.

Button head socket cap screws combine the similar shape of a pan head with the driver of a socket head. The socket driver is ideal for low clearance applications that require a large area clamping face.

Compared to a standard socket head cap screw, button heads have a lower and wider profile which can be useful when the clamping material is too thin to counter-bore. A button head socket cap screw’s large diameter face also helps to distribute force more evenly.

These screws can take a lower tightening torque as compared to the DIN 912 screws.  

Hence, these screws are not recommended for high demand applications.

Available in Hexagonal Socket drive and 6-Lobe (Hexalobular) drive for higher reliability.

Hexagonal socket drive

Allen BHCS SS-304 A2 – Download Datasheet
Allen BHCS SS-316 A4 – Download Datasheet
Allen BHCS High Tensile Alloy Steel – Download Datasheet
Allen BHCS Titanium Gr-2 – Download Datasheet

6-Lobe (Hexalobular or Torx) drive

BHCS 6-Lobe SS-304 A2 – Download Datasheet
BHCS 6-Lobe SS-316 A4 – Download Datasheet

Flange Button Head Allen Screw ISO-7380-2

Low profile head facilitates space saving and safety.

These are protective fasteners which provide the assembly with structural support as well as a visually appealing look. It protects the components around it from damages like scraps and unintentional cuts.

Another advantage of these screws is the large under head bearing surface – this eliminates the need for washers. The Flange distributes the pressure better.

ISO 7380-2 BHCS Flange SS-304 A2 – Download Datasheet
ISO 7380-2 BHCS Flange SS-316 A4 – Download Datasheet

Flanged Button Head TORX Screw ISO-7380-2

This is an improvement on the Allen drive option and provides a more reliable slipless fixing using lesser operator effort.

The Low profile head facilitates space saving and safety.

The flange eliminates need for a washer.

Not only will this make sure even load to the target surface, this will help to prevent the screw from loosening and ensure good grip to the material in which it is fastened.

This property makes this head style suitable for fastening softer materials.

ISO 7380-2 BHCS Flange 6-Lobe SS-304 A2 – Download Datasheet
ISO 7380-2 BHCS Flange 6-Lobe SS-316 A4 – Download Datasheet

USAGE NOTES.

  • Install above above the surface. Make sure that the surface is level.
  • Do not overtighten. Keep within the suggested Torque values. Using a Torque control tool is recommended.
  • Ensure assembly using a correct tool in good condition. Worn out tools can damage the socket.