BS 4882

ASTM A193 Grade B7 Specifications

Dimensions for Metric Full Threaded Studs

Dimensions for Metric Full Threaded Studs
Nominal Size Nominal Length, LT
Diameter, D Pitch, P U max = 2P Range Increments
M5 0.8 1.6 12-20 4
25-50 5
60-160 10
≥ 180 20
M6 1 2.0 16-20 4
25-50 5
60-160 10
≥ 180 20
M8 1.25 2.5 25-50 5
60-160 10
≥ 180 20
M10 1.5 3.0 30-50 5
60-160 10
≥ 180 20
M12 1.75 3.5 40-50 5
60-160 10
≥ 180 20
M14 2 4.0 60-160 10
≥ 180 20
M16 2 4.0 60-160 10
≥ 180 20
M20 2.5 5.0 60-160 10
≥ 180 20
M22 2.5 5.0 60-160 10
≥ 180 20
M24 3 6.0 70-160 10
≥ 180 20
M27 3 6.0 80-160 10
≥ 180 20
M30 3.5 7.0 90-160 10
≥ 180 20
M36 4 8.0 110-160 10
≥ 180 20
M42 4.5 9.0 120-160 10
≥ 180 20
M48 5 10.0 150-160 10
≥ 180 20
M56 5.5 11.0 ≥ 180 20
M64 6 12.0 ≥ 180 20
M72, M80, M90, and M100 6 12.0 ≥ 200 20

General Note :All dimensions are in millimeters unless otherwise indicated

Length Tolerances: LT for Metric Full Threaded Stud Bolts

Nominal Size Length Tolerance(mm)
Over Through
6 10 ± 0.45
10 18 ± 0.55
18 30 ± 0.65
30 50 ± 0.80
50 80 ± 1.50
80 120 ± 1.75
120 180 ± 2.00
180 250 ± 2.30
250 315 ± 2.60
315 400 ± 2.85
400 500 ± 3.15
> 500 ... ± 10.00

ASTM A193 Grade B7 Fastener Coatings

PTFE Coated B7 Fasteners
PTFE Coated
Black Phosphated B7 Fasteners
Black Phosphated
Zinc Plated B7 Fasteners
Zinc Plated
Hot Dip Galvanized B7 Fasteners
Hot Dip Galvanized
Cadium Plated B7 Fasteners
Cadium Plated
Ceramic Coated B7 Fasteners
Ceramic Coated
Zinc Nickel B7 Fasteners
Zinc Nickel
Zinc Flake Coated B7 Fasteners
Zinc Flake Coated