Skip to content Skip to footer

PETROCHEMICAL

Petrochemical Fasteners

Studbolts

Heavy Hex Bolts

Heavy Hex Nuts

Plating & Coatings

Fasteners

Hex Head Products

Socket Products

Foundation Bolting

Studding

Hex Nuts

Washers

Gaskets

Spiral Wound Gaskets

Ring Type Joints

Soft Cut Gaskets

Insulation Kits

Pipe Supports

U-Bolts

Pipe Clamps

Eyebolts

Hemispherical Washers

Hex Connecting Nut

I-Rod / Nu-Bolts

SOCKET COUNTERSUNK SCREWS (METRIC)

DIN 7991 / ISO 10642

DIA A B M (MIN) S (MIN) H (MAX)
M35.54 - 6.722.020 - 2.0801.1181.86
M47.53 - 8.962.520 - 2.5801.5202.48
M59.43 - 11.203.020 - 3.0801.9223.10
M611.34 - 13.444.020 - 4.0952.2243.72
M815.24 - 17.925.020 - 5.1403.0284.96
M1019.22 - 22.406.020 - 6.1403.6326.20
M1223.12 - 26.888.025 - 8.1754.3367.44
M1426.52 - 30.8010.025 - 10.1754.5408.40
M1629.01 - 33.6010.025 - 10.1754.8448.80
M2036.05 - 40.3212.032 - 12.2125.65210.16
DIMENSION DATA
M3 +
A5.54 - 6.72
B2.020 - 2.080
M (MIN)1.1
S (MIN)18
H (MAX)1.86
M4 +
A7.53 - 8.96
B2.520 - 2.580
M (MIN)1.5
S (MIN)20
H (MAX)2.48
M5 +
A9.43 - 11.20
B3.020 - 3.080
M (MIN)1.9
S (MIN)22
H (MAX)3.10
M6 +
A11.34 - 13.44
B4.020 - 4.095
M (MIN)2.2
S (MIN)24
H (MAX)3.72
M8 +
A15.24 - 17.92
B5.020 - 5.140
M (MIN)3.0
S (MIN)28
H (MAX)4.96
M10 +
A19.22 - 22.40
B6.020 - 6.140
M (MIN)3.6
S (MIN)32
H (MAX)6.20
M12 +
A23.12 - 26.88
B8.025 - 8.175
M (MIN)4.3
S (MIN)36
H (MAX)7.44
M14 +
A26.52 - 30.80
B10.025 - 10.175
M (MIN)4.5
S (MIN)40
H (MAX)8.40
M16 +
A29.01 - 33.60
B10.025 - 10.175
M (MIN)4.8
S (MIN)44
H (MAX)8.80
M20 +
A36.05 - 40.32
B12.032 - 12.212
M (MIN)5.6
S (MIN)52
H (MAX)10.16
  • Dimensions in millimetres

  • Available in Grade 10.9 & 12.9 Steel and A2 & A4 Stainless Steel

  • Other materials manufactured on request