DIN 609 Fit Bolt with Long Threaded Shank

The fit bolt manufactured to DIN 609 features a long threaded shank and a hexagon head. Depending on the version, the metric thread can be fine or coarse, with a nominal diameter of M10-M42. The length ranges from 25 mm to 200 mm.

In the fastener’s name, the term “prizonny” is a kind of adaptation of the word “precision,” which literally means high-precision. DIN 609 bolts are designed for installation in perfectly machined, clearance-free holes.

Materials and application

The main raw materials used to manufacture bolts with an extended threaded shank are:

• carbon steel with property classes 5.6, 8.8, and 10.9;
• stainless chromium-nickel steel grades A2 and A4 (with molybdenum addition).

These fasteners are used together with nuts and washers. Their main purpose is to provide the tightest possible connection of components subject to shear loads. Their application extends to industrial and manufacturing sectors of the economy. The DIN 609 bolt is predominantly installed by manufacturers of machines, mechanisms, instruments, units, and apparatus.

How to buy a fit bolt with long threaded shank

FLOK supplies the DIN 609 bolt complete with a nut and washer in any quantity. The full range of sizes is in stock.

Dimensions of DIN 609 fit bolts with hexagon head and long threaded shank, in mm:

Fine thread 8.8					Coarse thread 10.9
b (50 mm)	28.5			17.5	20.5	22	25	28.5
b (150 mm)	30.5	36.5	43	19.5	22.5	24	27	30.5	36.5
b (150 mm)	35.5	41.5	48	24.5	27.5	29	32	35.5	41.5
ds	21	25	32	11	13	15	17	21	25
s	30	36	46	16	18	21	24	30	36
l	d
	M20×2	M24×2	M30×2	M10	M12	M14	M16	M20	M24
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
110
120
130
140
150
160
170
180
190

d		M8	M10	M12	M14	M16	M18	M20	M22	M24	M27	M30	M36	M42
p		1	1	1.5	1.5	1.5	1.5	1.5	1.5	1.5	2	2	3	3
			1.25	1.25			2	2	2	2
k		5.3	6.4	7.5	8.8	10	11.5	12.5	14	15	17	19	22	26
ds		9	11	13	15	17	19	21	23	25	28	32	38	44
e		14.38	17.77	19.85	22.78	26.17	29.56	32.95	37.29	39.55	45.2	50.85	60.79	71.30
s		13	16	18	21	24	27	30	34	36	41	46	55	65
b	l ≤ 50	14.5	17.5	20.5	22	25	27.5	28.5	32.5	-	-	-	-	-
	50 < l ≤ 150	16.5	19.5	22.5	24	27	29.5	30.5	34.5	36.5	39.5	43	49	56
	l > 150	-	-	-	-	-	-	35.5	39.5	41.5	44.5	48	54	61