Tristar knob, gloss finish duroplast

Female, aluminium insert

1390

Code	A	B	C	D	Thread	Options
1390	1.38	0.71	0.59	0.35	1/4 5/16	Also available with a plain bore
1391	1.89	0.94	0.79	0.47	1/4 5/16
1392	2.36	1.38	0.98	0.59	5/16 3/8
1397	2.95	1.42	1.18	0.71	3/8 1/2

Male, plated steel stud

Code	A	B	C	D	Thread	Male thread length
1390/M	1.38	0.71	0.59	0.35	1/4	3/4 1 11/4
1391/M	1.89	0.94	0.79	0.47	5/16	1 11/2 2
1392/M	2.36	1.38	0.98	0.59	5/16 3/8	1 11/2 2
1397/M	2.95	1.42	1.18	0.71	1/2	2

Threaded right through, aluminium or brass insert

Code	A	B	C	D	Thread
1390/T	1.38	0.71	0.59	0.35	1/4 5/16 3/8
1390/T	1.89	0.94	0.79	0.47	5/16
1390/T	2.36	1.38	0.98	0.59	3/8

All dimensions are in inches and are approximate.
Non-standard thread diameters, lengths, insert materials (including stainless steel) and other modifications are available for minimum quantities.
The standard colour is black.
Contact our sales department for details or a free sample.

Call us now for pricing and availability at (800) 752-1680
or send us an email with your requirements to sales@ehcknobs.com