Hexalobular socket countersunk head screw DIN ≈7991 Stainless steel A2 M4X20

Article number
Diameter
Length
Driving features	Hexalobular
Head shape	Countersunk head
Material	Stainless steel
Material technical	A2
Thread direction	Right

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Specifications

Diameter	M4
Length	20 mm
Driving features	Hexalobular
Head shape	Countersunk head
Material	Stainless steel
Material technical	A2
Thread direction	Right
Thread	Metric thread
Info	Due to the unfavourable head geometry these fasteners have reduced loadability. Steel fasteners with reduced loadability are marked with a '0' preceding the property class mark, e.g. '010.9'. Stainless steel fasteners with reduced loadability are either marked with a '0' preceding the property class mark, e.g. 'A2-070', or with the steel grade only, e.g. 'A2'.

Dimensions

b (min.)	14
d-D	M4
dk	8
k (max.)	2.3
L (mm)	20
P	0.7
Socket	20
α	90

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Standards

ISO	≈10642
DIN	≈7991

Article numbers

Article number	51047.040.020
EAN	8715494109376
UBB	500571712875
UNSPSC	31161518

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