TJ Davies Introduces Sockets to Extend the Life of Retention Knobs

Using a socket and a torque wrench allows the user to achieve the ideal tightness without rounding the corners of the retention knob.

Mantua, OH - T.J. Davies Co., Inc., a leading manufacturer of retention knobs, introduces sockets which aid in the proper installation of their retention knobs, thus extending their service life. Using a socket and a torque wrench allows the user to achieve the ideal tightness without rounding the corners of the retention knob. These robust sockets are made from American-made AISI 4140 steel that is then machined in-house. Each socket is heat treated to 54-56 HRC and coated using a hot black oxide coating to military specifications. All socket surfaces have a precision ground finish of 32 RMA micro or better; ISO grade 6N. Four different sizes are available, to cover the full line of retention knobs manufactured by T.J. Davies. Sockets are available individually or as a complete set. Full sets are shipped in a convenient holder to store them when not in use. All sockets and retention knobs are manufactured to exact specifications that exceed industry standards and include a lifetime guarantee. For additional information on T.J. Davies sockets, visit www.tjdavies.com/sockets.


In addition to sockets, T.J. Davies manufactures and stocks the industry's broadest line of retention knobs for immediate shipment. Their products are available through a nationwide network of distributors. Orders placed by 3 pm EST ship same day.

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About T.J. Davies
Founded in 1965, T.J. Davies Company, Inc. is a leading manufacturer of retention knobs located in Mantua, Ohio. The vision of T.J. Davies Company, Inc. is to produce world-class, made-in-America retention knobs and to provide exceptional customer service. Veteran Founded, Certified Women Owned Business. Their products are available through a nationwide network of distributors. For additional information visit www.tjdavies.com, email to sales@tjdavies.com, call (440) 248-5510, or write T.J. Davies Co., Inc., 11823 Ohio Route 44, Mantua, OH, 44255.

Featured Product

T.J. Davies' Retention Knobs

T.J. Davies' Retention Knobs

Our retention knobs are manufactured above international standards or to machine builder specifications. Retention knobs are manufactured utilizing AMS-6274/AISI-8620 alloy steel drawn in the United States. Threads are single-pointed on our lathes while manufacturing all other retention knob features to ensure high concentricity. Our process ensures that our threads are balanced (lead in/lead out at 180 degrees.) Each retention knob is carburized (hardened) to 58-62HRC, and case depth is .020-.030. Core hardness 40HRC. Each retention knob is coated utilizing a hot black oxide coating to military specifications. Our retention knobs are 100% covered in black oxide to prevent rust. All retention knob surfaces (not just mating surfaces) have a precision finish of 32 RMA micro or better: ISO grade 6N. Each retention knob is magnetic particle tested and tested at 2.5 times the pulling force of the drawbar. Certifications are maintained for each step in the manufacturing process for traceability.