riv.w.countersunk head DIN 661, *excepted

n16080661.10

n16080661.40

n17030661.40

n17040661.10

n17050661.10

n17050661.60

n17060661.10

n17100661.10

n20030661.10

n20030661.40

n20030661.60

n20035126.10

n20040661.10

n20040661.40

n20040661.48

n20040661.90

n20050661.10

n20050661.40

n20050661.90

n20055661.10

n20060661.10

n20060661.90

n20070661.10

n20070661.95

n20080661.10