DescriptionThe QCPCS quarter-turn fastener provides positive locking for quick-change fixtures where frequent insertion and removal occur. The fastener engages a mating clamping pin (QCPCS-series pins sold separately) and locks with four hardened balls after a one-quarter turn of the knob. Turning the knob to the OFF position releases the balls for removal.
Part options- SKU 150618 / Part QCPCS0625-20; Knob: Plastic; Range: 3 to 20 mm; Thread: M2×0.40 depth 4; D: 6; D1: 14; D2: 25; D3: 30; Dp: 21; H: 40; H1: 14.7; Clamping force: 33.7 lbs; Holding force: 101 lbs; Use with pin: QCPCS0625-M
- SKU 150619 / Part QCPCS0625-20-SUS; Knob: Stainless; Range: 3 to 20 mm; Thread: M2×0.40 depth 4; D: 6; D1: 14; D2: 25; D3: 30; Dp: 21; H: 40; H1: 14.7; Clamping force: 33.7 lbs; Holding force: 101 lbs; Use with pin: QCPCS0625-M
- SKU 150621 / Part QCPCS0834-20; Knob: Plastic; Range: 3 to 20 mm; Thread: M3×0.50 depth 5; D: 8; D1: 18; D2: 34; D3: 40; Dp: 28; H: 48; H1: 16.0; Clamping force: 56.2 lbs; Holding force: 168 lbs; Use with pin: QCPCS0834-M
- SKU 150622 / Part QCPCS0834-20-SUS; Knob: Stainless; Range: 3 to 20 mm; Thread: M3×0.50 depth 5; D: 8; D1: 18; D2: 34; D3: 40; Dp: 28; H: 48; H1: 16.0; Clamping force: 56.2 lbs; Holding force: 168 lbs; Use with pin: QCPCS0834-M
Technical specifications- Series / Model: QCPCS
- Function: Quarter-turn fastener, pin-holding with positive locking by four balls
- Body material: 303 stainless steel
- Knob options: 300 stainless steel or black plastic
- Balls material: 440C stainless steel
- Spring material: 304 stainless steel
- Included hardware: Three socket head cap screws for mounting
- Designed for use with QCPCS-series clamping pins (sold separately)
- For plate thickness under 6 mm a QCASP spacer is required (sold separately)
- Operation: place fastener on pin, turn knob 90° to lock; turn to OFF to release
- Thread options: M2×0.40 (depth 4) and M3×0.50 (depth 5)
- Range (plate thickness): 3 to 20 mm for listed SKUs
- See Part options for sample dimensional and performance data