Metric Steel Regular Round Head Thumb Screws

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Hardware: a screw with a hexagonal recess in the head that is designed to be used with an Allen wrench <At the bottom of this hole is the Allen screw holding the two halves of the elevation knob together. — Patrick Sweeney, Gunsmithing: Rifles, 1999>

Usually the standard is regarded as DIN912

To great our service, we present the products and solutions while using the very good top quality at the reasonable cost for Metric Steel Regular Round Head Thumb Screws. Our company will, as always, be demand-oriented, and take research and development as our driving force. We constantly practice strict requirements for internal strength and quality, external flexibility and timely improvement of efficiency.