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ISO 7379 Socket Head Shoulder Screw

ISO 7379 Socket Head Shoulder Screws

FULLERKREG supplies ISO 7379 socket head shoulder screws (also known as shoulder bolts or stripper bolts) in stainless steel and high-tensile alloy steel grades. The precision-ground unthreaded shoulder provides an accurate bearing surface for pivoting, guiding, and locating components — essential in tooling, dies, jigs, and precision machinery. Select your series below:

Available Series

Socket Head Shoulder Screws (ISO 7379) — Stainless Steel A2
Material: A2 / SUS304  |  Surface: Whitened & Passivated  |  Shoulder: Precision Ground  |  Size: M5–M20
Socket Head Shoulder Screws (ISO 7379) — Grade 12.9 Black Oxide
Material: Alloy Steel  |  Surface: Black Oxide  |  Shoulder: Precision Ground  |  Strength: 1220 MPa  |  Size: M5–M20

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About ISO 7379 Shoulder Screws

  • Standard: ISO 7379 (international) ≡ DIN 9841 (Germany)
  • Head: Cylindrical head with internal hexagon (Allen key) drive
  • Key Feature: Precision-ground unthreaded shoulder — acts as a bearing, pivot, or locating pin
  • Shoulder Tolerance: h6 (close tolerance) — fits standard bearing bores and bushings
  • Thread: Reduced metric thread on shank end (smaller than shoulder diameter)
  • Size Range: Shoulder Ø 5–20 mm (grade-dependent)
  • Typical Use: Tooling, dies, jigs, stripper plates, pivot pins, linear guides

Can’t find the size or material you need? Contact FULLERKREG — additional grades and custom shoulder lengths available on request.

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