DIN 916HeadlessHexagon socket

DIN 916 M3 × 16 Headless

DIN 916 M3 × 16 is a socket set screw, cup point with a 16 mm nominal length, on a M3 × 0.5 mm metric thread. A headless grub screw with a cupped end that digs into the shaft. Common for locking collars, pulleys and knobs onto shafts.

DIN 916 M3 × 16 — HeadlessNominal dimensions in mm · Not to scale

Diameter3 mm

Length16 mm

Pitch0.5 mm

Socket size s1.5 mm

HeadHeadless

DriveHexagon socket

Dimensions

Standard: DIN 916
Type: Socket set screw, cup point
Size: M3 × 16
Thread: M3 × 0.5
Length L: 16 mm
Socket size s: 1.5 mm
Drive: Hexagon socket
Head: Headless

Nominal values in millimetres as published in DIN 916. Estimated weight 0.888 g per piece in steel (0.893 g in stainless), calculated from the nominal geometry — real parts vary with tolerance and head chamfers.

Thread data

Full M3 thread page

DesignationM3 × 0.5

Pitch0.5 mm

Major Ø3 mm

Pitch Ø2.68 mm

Minor Ø ext2.39 mm

Tap drillØ 2.5 mm

Other lengthsDIN 916 M3

All M3 specifications

M3 × 3 M3 × 4 M3 × 5 M3 × 6 M3 × 8 M3 × 10 M3 × 12 M3 × 16

Interchangeability

DIN 916 is catalogued with ISO 4029 as its equivalent designation. Dimensions are compared field by field rather than assumed identical.

Equivalent standardISO 4029Hexagon Socket Set Screw — Cup Point ComparisonDIN 916 vs ISO 4029Field-by-field differences and a substitution verdict