QUICK RELEASE DEVICES:
Steel/Stainless Steel Knurled Knob Plungers - Locking & Non-locking


Part No. SL250 (non-locking)
Part No. SL250 (non-locking)
Part No. SL250 (non-locking)
Part No. SLF250 (locking)
Part No. SLF250 (locking)
Part No. SLF250 (locking)

Special Features

  • Knurled knob design
  • Hand-retractable locking plunger on locking models
  • Hand-retractable plunger on non-locking models
  • Large hardened bearing surface
  • Non-locking or locking design

 

  • Withstand side loading
  • Unified ANSI & metric threads
  • Tapered end for easy alignment
  • Steel & Stainless Steel models

Knurled Knob Steel & Stainless Steel Retractable Non-Locking Plungers
Vlier Knurled Knob Steel/Non-Locking Plungers provide a retractable plunger that can be easily withdrawn and reengaged. Large hardened bearing surfaces permit greater side loading. Slight end taper for easy alignment. Tough steel body and spring. Zinc gold chromate finish. lier Knurled Knob Stainless Steel/Non-Locking Plungers offer the added benefit of an all-stainless steel design for maximum protection against rust and corrosion.

Non-Locking Dimensions
Lbf/Newton Conversion:
Enter known value and click on empty value to view results.
lbf = N
Part No.
End Force, Lbs.
Thread
(in.)
(in.)
(in.)
(in.)
(in.)
(in.)
No Locking Element
w/Locking Element
Init.
Final
A
B
C
D
E
F
G
SL190 SL190P
0.50
3.0
10-32
.400
.094
.104**
0.38
.250
.19
SL250 SL250P
1.00
4.0
1/4-20
.500
.125
.123
0.50
.313
0.19
SL312 SL312P
1.00
6.0
5/6-18
.625
.188
.154
0.63
.375
.25
SL375 SL375P
1.00
8.0
3/8-16
.750
.218
.185
0.75
.500
.31
SL500 SL500P
1.00
10.0
1/2-13
.875
.250
.248
1.00
.625
.38

tolerance: +.002; -.000
To Order With Locking Element - add "P" at end of the part number.

Lbf/Newton Conversion:
Enter known value and click on empty value to view results.
lbf = N
Part No.
End Force, Lbs.
Thread
(in.)
(in.)
(in.)
(in.)
(in.)
(in.)
No Locking Element
w/Locking Element
Init.
Final
A
B
C
D
E
F
G
SSL190 SSL190P
0.50
3.0
10-32
.400
.094
.104**
0.38
.250
.19
SSL250 SSL250P
1.00
4.0
1/4-20
.500
.125
.123
0.50
.313
0.19
SSL312 SSL312P
1.00
6.0
5/6-18
.625
.188
.154
0.63
.375
.25
SSL375 SSL375P
1.00
8.0
3/8-16
.750
.218
.185
0.75
.500
.31
SSL500 SSL500P
1.00
10.0
1/2-13
.875
.250
.248
1.00
.625
.38

tolerance: +.002; -.000
To Order With Locking Element - add "P" at end of the part number.


Knurled Knob Steel & Stainless Steel Retractable Locking Plungers
Vlier Knurled Knob Steel/Locking Plungers provide a retractable plunger that locks in the retracted position and can be easily withdrawn and reengaged. Large hardened bearing surfaces permit greater side loading. Slight end taper for easy alignment. Tough steel body and spring. Zinc gold chromate finish. Vlier Knurled Knob Stainless Steel/Locking Plungers offer the added benefit of an all-stainless steel design for maximum protection against rust and corrosion.

Locking Dimensions
Lbf/Newton Conversion:
Enter known value and click on empty value to view results.
lbf = N
Part No.
End Force, Lbs.
Thread
(in.)
(in.)
(in.)
(in.)
(in.)
No Locking Element
w/Locking Element
Init.
Final
A
B
C
D
E
F
SLFH250 SLFH250P
1.00
4.0
1/4-20
.400
.125
.123 - .124
0.50
.81
SLFH375 SLFH375P
1.00
8.0
3/8-16
.750
.22
.185 - .186
0.75
1.26
SLFH500 SLFH500P
1.00
10.0
1/2-13
.850
.25
.248 - .249
1.00
1.38

tolerance: +.002; -.000
To Order With Locking Element - add "P" at end of the part number.

Lbf/Newton Conversion:
Enter known value and click on empty value to view results.
lbf = N
Part No.
End Force, Lbs.
Thread
(in.)
(in.)
(in.)
(in.)
(in.)
No Locking Element
w/Locking Element
Init.
Final
A
B
C
D
E
F
SSLFH250 SSLFH250P
1.00
4.0
1/4-20
.400
.125
.123 - .124
0.50
.81
SSLFH375 SSLFH375P
1.00
8.0
3/8-16
.750
.22
.185 - .186
0.75
1.26
SSLFH500 SSLFH500P
1.00
10.0
1/2-13
.850
.25
.248 - .249
1.00
1.38

tolerance: +.002; -.000
To Order With Locking Element - add "P" at end of the part number.

Lbf/Newton Conversion:
Enter known value and click on empty value to view results.
lbf = N
Part No.
End Force, Lbs.
Thread
(in.)
(in.)
(in.)
(in.)
(in.)
No Locking Element
w/Locking Element
Init.
Final
A
B
C
D
E
F
SLF250 SLF250P
.50
2.0
1/4-20
.400
.125
.123 - .124
0.50
.805
SLF375 SLF375P
.50
3.0
3/8-16
.750
.22
.185 - .186
0.75
1.26
SLF500 SLF500P
.50
4.0
1/2-13
.650
.25
.248 - .249
1.00
1.38

To Order With Locking Element - add "P" at end of the part number.

Lbf/Newton Conversion:
Enter known value and click on empty value to view results.
lbf = N
Part No.
End Force, Lbs.
Thread
(in.)
(in.)
(in.)
(in.)
(in.)
No Locking Element
w/Locking Element
Init.
Final
A
B
C
D
E
F
SSLF250 SSLF250P
.50
2.0
1/4-20
.400
.125
.123 - .124
0.50
.805
SSLF375 SSLF375P
.50
3.0
3/8-16
.750
.22
.185 - .186
0.75
1.26
SSLF500 SSLF500P
.50
4.0
1/2-13
.650
.25
.248 - .249
1.00
1.38

To Order With Locking Element - add "P" at end of the part number.

Lbf/Newton Conversion:
Enter known value and click on empty value to view results.
lbf = N
Part No.
End Force, N
Thread
(mm)
(mm)
(mm)
(mm)
(mm)
(mm)
No Locking Element
w/Locking Element
Init.
Final
A
B
C
D
E
F
G
SLM5 SLM5P
2.22
13.34
M5 x 0.8
10
2
2.5
9
6
4
SLM6 SLM6P
4.45
17.8
M6 x 1.0
13
3
3.0
13
8
5
SLM10 SLM10P
4.45
35.6
M10 x 1.5
19
6
4.7
19
13
8
SLM12 SLM12P
4.45
44.5
M12 x 1.75
23
6
6
25
16
10

TOLERANCE: +0.05mm -.000
To Order with Locking Element - Add "P" at end of the part number.

Lbf/Newton Conversion:
Enter known value and click on empty value to view results.
lbf = N
Part No.
End Force, N
Thread
(mm)
(mm)
(mm)
(mm)
(mm)
(mm)
No Locking Element
w/Locking Element
Init.
Final
A
B
C
D
E
F
G
SSLM5 SSLM5P
2.22
13.34
M5 x 0.8
10
2
2.5
9
6
4
SSLM6 SSLM6P
4.45
17.8
M6 x 1.0
13
3
3.0
13
8
5
SSLM10 SSLM10P
4.45
35.6
M10 x 1.5
19
6
4.7
19
13
8
SSLM12 SSLM12P
4.45
44.5
M12 x 1.75
23
6
6
25
16
10

TOLERANCE: +0.05mm -.000
To Order with Locking Element - Add "P" at end of the part number.

Lbf/Newton Conversion:
Enter known value and click on empty value to view results.
lbf = N
Part No.
End Force, N
Thread
(mm)
(mm)
(mm)
(mm)
(mm)
No Locking Element
w/Locking Element
Init.
Final
A
B
C
D
E
F
SLFM6 SLFM6P
2.2
8.9
M6 x 1.0
10
3.2
3.0
13
20.7
SLFM10 SLFM10P
2.2
13.3
M10 x 1.5
19
5.6
4.7
19
32
SLFM12 SLFM12P
2.2
17.8
M12 x 1.75
17
6.4
6.3
25
35

To Order with Locking Element - Add "P" at end of the part number.

Lbf/Newton Conversion:
Enter known value and click on empty value to view results.
lbf = N
Part No.
End Force, N
Thread
(mm)
(mm)
(mm)
(mm)
(mm)
No Locking Element
w/Locking Element
Init.
Final
A
B
C
D
E
F
SSLFM6 SSLFM6P
2.2
8.9
M6 x 1.0
10
3.2
3.0
13
20.7
SSLFM10 SSLFM10P
2.2
13.3
M10 x 1.5
19
5.6
4.7
19
32
SSLFM12 SSLFM12P
2.2
17.8
M12 x 1.75
17
6.4
6.3
25
35

To Order with Locking Element - Add "P" at end of the part number.