1/4-20scallop_threaded

SRS Industries
Design and Manufacture of
Captive Spring Loaded Screw Knob Fasteners
1.630.569.5007 www.srsindustries.com

T25AS100-01E 1/4-20 Cast Iron Scallop Captive Screw Knob Assembly - With Captive Threaded Collet
Knob is cast iron with steel stud & sleeve. Material & Finish:
Knob: Cast Iron - Stud: G-5 - Sleeve: 12L14 black oxide

These captive screw knob assemblies stay with fixture, eliminating lost fastening hardware and allowing for faster change overs and set up. They also add a high quality look and feel to the finished part. These captive fasteners consist of a spring loaded screw knob assembly and collet. These assemblies instantly install in a single threaded hole, by inserting the collet into the fixture and securing tight. Collet has wrench flats for easy installation. When unfastened, the knob is held away from the fixture by spring tension and the screw is fully withdrawn into the collet. This provides a flush surface on the back side of the fixture, which is ideal for sliding surfaces. When fastened, the knob is pulled down over the collet for tight secure clamping. Instructions included.

NOTE: For panels less then the MAX thickness, add spacer as needed between the sleeve and the panel.

Thread Size	A	B	C	D	E	G	H
1/4-20	5/8	1 1/8	1 1/8	1 13/32	3/8	1/4	1/2-20

Knob Assembly Thread Size	A	B (Max Thickness)
1/4-20	1/2-20 UNF	3/8