ISO 8750

Similar DIN 7343

Spring-type straight pins - coiled

Standard Duty

tech-iso8750




Nominal Diameter Φ0.8 Φ1 Φ1.2
d before mounting max 0.91 1.15 1.35
min 0.85 1.05 1.25
d2 before mounting max 0.75 0.95 1.15
s 0.07 0.08 0.1
α ≈ 0.3 0.3 0.4
Minimum Double Shear,kN ① a 0.4 0.6 0.9
b 0.3 0.45 0.65

Nominal Diameter Φ1.5 Φ2 Φ2.5
d before mounting max 1.73 2.25 2.78
min 1.62 2.13 2.65
d2 before mounting max 1.4 1.9 2.4
s 0.13 0.17 0.2
α ≈ 0.5 0.7 0.7
Minimum Double Shear,kN ① a 1.45 2.5 3.9
b 1.05 1.9 2.9

Nominal Diameter Φ3 Φ3.5 Φ4
d before mounting max 3.3 3.84 4.4
min 3.15 3.67 4.2
d2 before mounting max 2.9 3.4 3.9
s 0.25 0.29 0.33
α ≈ 0.9 1 1.1
Minimum Double Shear,kN ① a 5.5 7.5 9.6
b 4.2 5.7 7.6

Nominal Diameter Φ5 Φ6 Φ8
d before mounting max 5.5 6.5 8.63
min 5.25 6.25 8.3
d2 before mounting max 4.85 5.85 7.8
s 0.42 0.5 0.67
α ≈ 1.3 1.5 2
Minimum Double Shear,kN ① a 15 22 39
b 11.5 16.8 30

Nominal Diameter Φ10 Φ12 Φ14
d before mounting max 10.8 12.85 14.95
min 10.35 12.4 14.45
d2 before mounting max 9.75 11.7 13.6
s 0.84 1 1.2
α ≈ 2.5 3 3.5
Minimum Double Shear,kN ① a 62 89 120
b 48 67 /

Nominal Diameter Φ16 Φ20
d before mounting max 17 21.1
min 16.45 20.4
d2 before mounting max 15.6 19.6
s 1.3 1.7
α ≈ 4 4.5
Minimum Double Shear,kN ① a 155 250
b / /



1dimensions before installation
2sher strength, double kN, only for spring steel
*not standardized, reference values


All information is strictly informative