Stainless steel snap fastener QCOW series

Overview
One-touch snap-in fasteners (QCOW / QCOWS) provide positive locking for quick-change fixtures that require frequent insertion and removal. The fastener mounts to the fixture and locks onto a QCPC-series clamping pin installed on the base, engaging with four balls. Pressing the button releases the balls to permit removal.

Product types

• QCOW — Steel fastener available with or without dome head.
• QCOWS — Stainless steel fastener (spacer/variant) for extended plate thickness range.

Part options

• QCOW0616-10SUS — Plate thickness 3 to 10 mm; Thread M16x1.00; D 11 mm; D1 32 mm; D2 6 mm; D3 19 mm; L 23 mm; L1 15.5 mm; L2 9.5 mm; L3 8.5 mm; SW 17 mm; Clamping force 1.35 lbs; Use with QCPC0625-M4-SUS; Type A.
• QCOWS0616-10SUS — Plate thickness 3 to 27 mm; Thread M16x1.00; D 11 mm; D1 19 mm; D2 6 mm; D3 N/A; L 23 mm; L1 19.5 mm; L2 9.5 mm; L3 N/A; SW 17 mm; Clamping force 1.35 lbs; Use with QCPC0625-M4-SUS; Type B.

Technical specifications

• Materials: body and button — 303 stainless steel; balls — 440C stainless steel; spring — 304 stainless steel.
• Locking mechanism: snap-in engagement with four balls; press fastener onto pin to lock; press button to release.
• Design intent: for frequent insertion/removal and to provide consistent fastening force, reducing risk of operator under- or over-tightening.
• Compatible pins: QCPC-series clamping pins (example: QCPC0625-M4-SUS).
• Head styles: available with dome or without dome to suit application requirements.
• Typical applications: quick-change fixtures where a fixture is repeatedly attached/detached; fastener mounts to fixture, pin mounts to base.