Library › Hardware › Set screws (grub screws), M3–M8

ISO 4026 M5 × 8 flat point, 2.5 mm key

ISO 4026 M5 × 8 flat point, 2.5 mm key

Exact dimensions. True size, no printing tolerance added. Threads are plain cylinders at the major diameter.

STEP STL free, CC BY 4.0 (credit "Xem Studio")

Dimensions

threadM5
hex_key_mm2.5
common_lengths_mm5, 6, 8, 10, 12
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From the full sheet

Set screws (grub screws), M3–M8 (ISO 4026): every size, notes, mating features and sources. What size set screw holds a 5 mm shaft coupler or pulley?

Other sizes