J.W. Winco, Inc. - Tommy Screws

Metric Size, Steel
Tommy Screws
Stud Type with Fixed Bar

DIN 6304
wo

Specification

Information

Body: Sandblasted steel, black oxide finish
Machined from solid bar
Tommy bar pressed in
Thrust point end of stud hardened
Thrust pad, see DIN 6311

The thrust point of these screws DIN 6304 is designed to
be used with or without a thrust pad for clamping.
The snap ring is a simple and quick method to connect
the thrust pad to the tommy screw.

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Dimensions in:

millimeters
(inches)

Part Number		d1 Thread	l1 Stud Length	d2	d3	d4	l2	l3	l4	l5	z
Without Thrust Pad	With Thrust Pad
6N40B21/E	6N40B21/F	M6 x 1.0	40	12 (.47)	5 (.20)	4.5 (.18)	10 (.39)	50 (1.97)	10 (.39)	2.2 (.09)	5.4 (.21)
6N50B21/E	6N50B21/F		50
8N50B21/E	8N50B21/F	M8 x 1.25	50	14 (.55)	6 (.24)	6 (.24)	12 (.47)	60 (2.36)	15 (.59)	3 (.12)	6.8 (.27)
8N60B21/E	8N60B21/F		60
10N60B21/E	10N60B21/F	M10 x 1.5	60	18 (.71)	8 (.31)	8 (.31)	14 (.55)	80 (3.15)	20 (.79)	3.6 (.14)	8.2 (.32)
10N70B21/E	10N70B21/F		70
12N70B21/E	12N70B21/F	M12 x 1.75	70	20 (.79)	10 (.39)	8 (.31)	18 (.71)	100 (3.94)	20 (.79)	4.5 (.18)	8.6 (.34)
12N80B21/E	12N80B21/F		80
16N75B21/E	16N75B21/F	M16 x 2.0	75	24 (.94)	12 (.47)	12 (.47)	20 (.79)	120 (4.72)	20 (.79)	5.3 (.21)	10.6 (.42)
16N90B21/E	16N90B21/F		90
16N110B21/E	16N110B21/F		110
20N75B21/E	20N75B21/F	M20 x 2.5	75	30 (1.18)	16 (.63)	15.5 (.61)	28 (1.10)	140 (5.51)	20 (.79)	5.6 (.22)	12.4 (.49)
20N90B21/E	20N90B21/F		90
20N110B21/E	20N110B21/F		110