If you know set screws, you know that the tighter you can tighten them, the better they hold and the more they resist loosening from vibration. But there’s a limit to how much you can tighten the average socket set screw. If you’re not care-ful, you can ream or crack the socket, and in some cases, even strip the threads. So you’re never quite sure whether or not it will actually stay tight. With UNBRAKO set screws it’s a different story. A unique combination of design and carefully controlled manufacturing and heat treating gives these screws extra strength that permits you to tighten them appreciably tighter than ordinary screws with minimal fear of reaming or cracking the socket. this extra strength represents a substantial bonus of extra holding power and the additional safety and reliability that goes with it.

Strengths

Fully formed threads – are rolled, not cut or ground. Metal is compressed, making it extra strong. Threads resist shearing, withstand higher tightening torques Class 3A threads – Formed with closest interchangeable fit for maximum cross section with smooth assembly. Assure better mating of parts
Counterbored knurled cup point – Exclusive UNBRAKO self-locking point provides 5 times greater vibrational holding power than other knurled points
Deep socket – Key fits deeply into socket to provide extra wrenching area for tighter tightening without reaming the socket or rounding off corners of key
Radiused socket corners – Rounded corners resist cracking and allow UNBRAKO set screws to withstand high tightening torques
Continuous grain flow – Flow lines of rolled threads follow closely the contour of the screw
Balanced heat treatment – It’s customized to individual lots of screws for uniform hardness, assuring maximum strength without brittleness

Applications

Fasten collars, sheaves, gears, knobs on shafts. Locate machine parts. Self-lockingknurled cup point is standard. Special Points like Flat, Dog, Cone & Plain Cup are also available.

Technical specifications

Attributes

Threading diameter	4 mm
Length	10 mm
Material/finishing	Steel
Shape of head	Knurled Cup Point
Class	6g (Thread)

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£ 11.72 ^{excl. VAT}

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£ 14.06 ^{incl. VAT}

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