DFCI Solutions Inc.
The original manufacturer of the Quarter-Turn fastener.
Southco has completed the acquisition of DFCI Solutions, Inc.
IMPORTANT INFORMATION:
As of 27-Feb-2015, customer orders and communications will be
processed by Southco, Inc. For sales, technical, or order
fulfillment questions, please contact Southco customer service via
email at info@southco.com, on
the web at www.southco.com, or
via phone at 610.459.4000
Click here for further information:
http://lp.southco.com/DFCI-Acquisition-LP.html
The Customer is Number One!
Go Green and Save Green!
When selecting finishes, select the RoHS compliant finishes. They are better for the environment and less expensive!
Quarter Turn - ST-1200 Line
ST-1200 Line offers the largest quarter-turn fastener selection in the industry. Every fastener in the line is based on the rugged spiral cam stud and spring-wire receptacle design. The advantages of this design are readily apparent when a ST-1200 Line Fastener is operated in comparison with other quarter-turn types, especially after prolonged use. The fastener provides a firm locking tension with a crisp and positive lock. The end of the stud cam presents a solid over-rotation stop. Wear is minimal and performance is maintained over thousands of use cycles. Stud shanks are smooth, with no pins or lugs to hang up in support holes. Designers evaluating quarter-turn fastener performance over the full service life of their product will find an outstanding choice in ST-1200 Line. ST-1200 Line fastener components consist of:
As the stud is rotated, the quarter-turn spiral cam engages the spring-wire receptacle and pulls it up and over the cam peak. The spring snaps into the detent at the end of the cam, holding the fastener in a firm locked tension. The cam peak resists opening rotation of a locked stud under vibration. The selection and installation planning of fasteners can influence the security of the fastened parts. Product information and support service is intended for use only by persons with mechanical engineering qualifications sufficient to manage the responsibilities of:
The following is a partial list of design criteria which should be used in selecting the correct fastener for your application.
The above considerations, along with the performance chart parameters should be utilized in choosing the appropriate fastener type, head style, receptacle, finish, and materials. Selection Procedure
5. Now determine the thickness of:
Then determine the total pileup between the level of stud head contact with the panel (top of Panel) and the level of receptacle contact with the underside of the support (bottom of Support), in the closed position. Refer to the examples on each receptacle page, which will guide you to the Grip Length selection table. 6. Self-ejecting stud assemblies prevent stud play in the open position and provide a visual cue of an open fastener. Note: When our existing supply of Cadmium plated parts is exhausted, DFCI Solutions, Inc will no longer offer Cadmium plating as an option. In place of the Cadmium plating, we recommend: Clear: Zinc Trivalent Clear .0003 thick. Trivalent Chromate Clear with Sealer (RoHS Compliant) Black: Zinc Trivalent Black .0003 thick. Trivalent Chromate Black Dye with Sealer (RoHS Compliant) Yellow: Zinc Trivalent Yellow .0003 thick, Trivalent Chromate Yellow Dye with Sealer The colored finishes offer no advantage over the clear other than the color, and they are more expensive.
Maximum Sheet Separation at 150% of Locked Service Tension: .05" (1.27 mm) |