25 October 2019
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Nylon slotted capstan screw

Bülte’s range of screws has been extended with the “Slotted capstan screw DIN404” range. This screw is composed of an enlarged cylindrical head, a straight slot on the top of the head and two radial holes on each side of the head and is fully in Nylon.

In comparison with metallic fasteners, Nylon fasteners offer various advantages; they are lighter, cheaper, and easier to recycle, they don’t conduct electricity and are also not subject to corrosion.

Slotted capstan screws have a unique design in that head which is similar to a cheese/pan head in shape have two holes bored through the side of the head at 90 degrees to one another serving a dual purpose: The slotted capstan screw DIN 404 may be tightened by inserting a tee bar into the holes when it is not possible to use a screwdriver to tighten the screw; locking wires can be attached to the cross holes to secure the screw.

The slotted capstan screws DIN 404 are designed to be tightened or loosened from the side rather than from the top, by inserting a small bar into one of the side radial holes in the head. Which is useful when there is restricted access to the top of the screw. They are applicable in areas such as machine building, instrument making, as well as for bonding structural elements from various materials in industrial sectors.

Tom Austin-Morgan

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Bulte Plastics (UK) Ltd


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