Type

Socket Cap Screw

Designation

M8 × 1.25 – 50

Head

Socket · Ø13 × 8 mm

Drive

Hex Socket · 6 mm key

Recess depth

4.96 mm · auto · gauge limits t 4–6 mm · ISO 4762

Thread

50.00/50 mm · P1.25 · fully threaded

Major Ø (as built)

7.80 mm

Point

Chamfered · 1.20 mm

Grade marking

property class 12.9 on the head · ISO 898-1

Service class

C3 · Outdoor urban · coating under-rated — use dip-spin ceramic coating

Est. install torque

≈ 15.2 N·m (indicative — verify by test)

Est. pull-out

≈ 5.2 kN from 2 mm steel sheet (indicative)

Manufacturing mode

FDM 3D print · +0.2 mm thread offset