Bülte’s range of screws has recently 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. 

This new range of screws is fully in Nylon, contrary to the metal screw DIN 404 usually available on the market. 

In comparison with the metallic fasteners, Nylon fasteners offer various advantages; they are lighter, cheaper, and easier to recycle. They do not 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 screw driver to tighten the screw; 
• Locking wires can be attached to the cross holes to secure the screw. 

Slotted capstan screws DIN 404 are designed to be either 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 very useful when there is restricted access to the top of the screw. Slotted capstan screw DIN404 is applicable in such areas as machine building, instrument making, as well as industrial sectors for bonding structural elements from various materials. 

In term of design, the standard colour of  “Slotted capstan screw DIN404” is natural nylon. But as Polyamide can be coloured as one’s wished, on request according to the RAL chart, Bülte’s “Slotted capstan screw DIN404” range will be in line with every kind of industrial application, whatever their colour might be.

Bülte’s account managers are available for advice from product design to completion. 
Quotation and free samples on request. 

The Bülte Company is certified DIN EN ISO 9001:2015

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