George H. Seltzer & Co.
George H. Seltzer & Co.
P.O.Box 26, 103 Ridley Avenue
Folsom, PA 19033-0026
Phone: 800-445-4101 - 610-532-2322 • Fax: 610-532-3024
E-mail: zip@zipbolts.com
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Forged Steel, Blackened
Tempered, Strength Class 10.9

Metric Collar Nut (DIN 6331)
Unit of Measure
Items Metric Collar Nut (DIN 6331)
6331M6
6mm - DIN 6331 Collar Nut (metric) 		Metric Collar Nut (DIN 6331)
6331M8
8mm - DIN 6331 Collar Nut (metric) 		Metric Collar Nut (DIN 6331)
6331M10
10mm - DIN 6331 Collar Nut (metric) 		Metric Collar Nut (DIN 6331)
6331M12
12mm - DIN 6331 Collar Nut (metric) 		Metric Collar Nut (DIN 6331)
6331M14
14mm - DIN 6331 Collar Nut (metric)
Thread Size
(mm) 		N/A 6 N/A 8 N/A 10 N/A 12 N/A 14
Width Across Flats (s)
(mm) 		N/A 10 N/A 13 N/A 16 N/A 18 N/A 22
Width from
Corner to Corner (e)
(mm) 		N/A 11.5 N/A 14.4 N/A 17.8 N/A 20 N/A 24.6
O.A. Height (m)
(mm) 		N/A 09 N/A 12 N/A 15 N/A 18 N/A 21
Flange Thickness (a)
(mm) 		N/A 3.0 N/A 3.5 N/A 4.0 N/A 4.0 N/A 4.0
Washer Portion Dia. (d1)
(mm) 		N/A 14.0 N/A 18.0 N/A 22.0 N/A 25.0 N/A 28.0
Availability N/A To Be Advised