DIN 6922 Flange Bolt with Transition Shank

The German standard DIN 6922 covers a high-strength bolt with a flange (pressure washer) and a transition shank. The flange increases the contact area with the material and can be fitted with locking serrations to prevent the connection from loosening. The bolt is a metal rod with metric thread diameter from M5 to M5. The shank length is from 30 to 200 mm.

Manufacturing features

The material is steel of property class 8.8, 10.9, 12.9, which provides resistance to mechanical loads. The steel may have a galvanic zinc coating for corrosion protection. Main features of the fastener:

• Hexagon head for wrench.
• Head size across flats — from 8 to 27 mm.
• The closest equivalent is manufactured to DIN 6921.

The fastener is used in mechanical engineering, automotive manufacturing, and other industries — for assembling components of mechanisms and units, together with nuts and washers.

d		M5	M6	M8	M10	M12	M14	M16	M20
P		0.8	1	1/1.25	1/1.25/1.5	1.25/1.5/1.75	1.5/2	1.5/2	1.5/2.5
d₂		11.8	14.2	18	22.3	26.6	30.5	35	43
k		5.4	6.6	8.1	9.2	11.5	12.8	14.4	17.1
S		8	10	13	15	16	18	21	27
b	l ≤ 125	16	18	22	26	30	34	38	46
	125<l≤200	-	-	28	32	36	40	44	52
	l > 200	-	-	-	-	-	-	57	65

Designations:

d - nominal thread diameter

P - thread pitch

d₂ - flange diameter, min.

k - bolt head height, max.

S - width across flats

b - length of the threaded part

l - bolt length