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28F SERIES

 QUICK OPERATING 1/4-TURN FASTENERS    28F SERIES

28F Series. Panel Preparation and Installation Data.

28F Series. Stud Assemblies and Receptacles

Features: Designed for decorative styling. Clip-on receptacle provides high assembly rates. Receptacles have low profile for minimum interior projection.

Specifications: Ultimate tensile strength: 300 lbs. Working strength: 200 lbs. Stud grip in increments: .030 inch. For other styles, materials or finishes, contract Camloc Products Division.

Stud Assemblies

Note: Part numbers shown are basic part numbers only. See ordering information on Page A-36 for required dash numbers.


Slo tted Recess

Cro ss Recess

Fixed Win g
Material Part No. Part No. Part No.
Stainless Steel 28S11-[ ] 28S7-[ ]A
Steel (Cadmium Plated) 28S1-[ ] 28S14-[ ] 28S7-[ ]
Steel (Nickel Plated) 28S20-[ ] 28S19-[ ]
Receptacles Low Profile,

Standard Mounting

Weight per 100

pcs.: 0.23 lbs.

Side Mounting, Lightweight

Weight per 100 pcs.: 0.45 lbs.

Clipon Type

Weight per 100 pcs.:0.42 lbs.

Shims

Weight per 100

pcs.:0.12 lbs.

 

Material

Part No. Max. Temp. Rivet

Holes

Part

No.

Max. Temp. Part No. Max.

Temp.

Part No. Max Temp. Rivet Holes
Stainless Steel 312-12A 750 F. Plain.134  dia..128
312-12S 750 F. Plain.102  dia..096
312-2WS 750 F. None (Weld Nibs)
Steel

(Cadmium Plated)

312-12 450 F. Plain.102  dia..096 26R5-1 450 F. 28R1-1AA*28R1-2AA** 450 F

.450 F.

Aluminum

Alloy

(Anodized)

26R8-1 350 F. Plain
26R8-2 350 F. C’Sunk†

 

Retaining Ring.
Order separately. See page A-58 for installation

 

 

Part No.

 

Material

Maximum Service Temperature
28S10-1 Stainless Steel 750 F.
 

28S10-2

Steel

(Cadmium Plated)

 

450 F.

28F Series. Panel Preparation and Installation Data.

Determine panel thickness “P” and form through hole to corresponding “X” diameter.

“P” panel thickness “X” dia.
Up to .091 .257
.092 and greater .312

Installing stud into panel:

Tilt stud and insert into panel as shown. It may be necessary to compress spring by pressing stud assembly against panel. When cross pin clears, center stud assembly in mounting hole and release. (To remove stud assembly reverse procedure.)

Note: Retaining ring is required for all studs used with .312 inch mounting holes. For .257 inch mounting holes, retaining rings may be omitted where: P>(.030 N)-.100     P=Panel thickness     N=Stud length dash number

Stud Ejector Spring

Provides full retraction of stud assembly to allow opening and closing of equipment without the possibility of jamming or damage.

Part No. Material and Finish Max. Temp.
2600-E2S Spring Steel (Cad. Plated) 450 F.

Note: Add .020 to total “G” thickness when using this part. See page A-36 Weight per 100 pcs.: 1.24 lbs.

28F Series. Receptacle Installation.

312-12 Series. Standard Mounting

1. Drill #30 (.1285) diameter pilot
2. Drill holes for .093 diameter rivets using drill jig P/N
3. Enlarge pilot hole to .438 diameter using hole saw HS-437.
4. Rivet receptacle in

P/N 26R5 Series. Side Mounting Receptacle

28R Series. Clip-on Receptacle

 

Part No.

F Panel

Thickness

C Max.
28R1-1AA .020-.064 .186
28R1-2AA .065-.109 .201

Note: Form .505-.495 mounting hole, then slide receptacle over mounting hole to clip in place.

28F Series. Ordering Information.

To Select Stud Dash Number.

1. Determine “G” thickness as shown below.
Notes:  a)  Increase “G” to allow for thickness of paint or other finishes and for the compressed thickness of any gasket.
b) “G” must be increased for the following “special” conditions:

“Special” Condition Increase “G” Thickness
2600-E2S Ejector Spring installed Add .020 inch
26R8 shims Installed Add .067 inch for each shim used

2. Stud dash number varies with receptacle This information must be known before proceeding.
3. Locate “G” total thickness in the
4. Then find the corresponding stud dash number in the column designated for the selected

Important Note: If the total thickness “G” is very near the top of the thickness range, selection of the next greater dash number is recommended. For “G” thicknesses greater than those tabulated, contact Camloc Products Division.

St ud Dash Number Select ion
“G” Total Thickness Receptacles
26R5 28R1 312-12
.029-.059 – 3
.060-.089 – 4
.080-.089 -2 – 2
.090-.119 – 3 – 5 – 3
.120-.149 – 4 – 6 – 4
.150-.179 – 5 – 7 – 5
.180-.209 – 6 – 8 – 6
.210-.239 – 7 – 9 – 7
.240-.269 – 8 -10 – 8
.270-.299 – 9 -11 – 9
.300-.329 -10 -12 -10
.330-.359 -11 -13 -11
.360-.389 -12 -14 -12
.390-.419 -13 -15 -13
.420-.449 -14 -16 -14
.450-.479 -15 -17 -15
.480-.509 -16 -18 -16
.510-.539 -17 -19 -17
.540-.569 -18 -20 -18
.570-.599 -19 -21 -19
.600-.629 -20 -22 -20
.630-.659 -21 -23 -21
.660-.689 -22 -24 -22
.690-.719 -23 -25 -23
.720-.749 -24 -26 -24
.750-.779 -25 -27 -25
.780-.809 -26 -28 -26
.810-.839 -27 -29 -27
.840-.869 -28 -30 -28
.870-.899 -29 -31 -29
.900-.929 -30 -32 -30
.930-.959 -31 -33 -31
.960-.989 -32 -34 -32
.990-1.019 -33 -35 -33
1.020-1.049 -34 -36 -34
1.050-1.079 -35 -37 -35
1.080-1.109 -36 -38 -36
1.110-1.139 -37 -39 -37
1.140-1.169 -38 -40 -38
1.170-1.199 -39 -41 -39
1.200-1.229 -40 -42 -40
1.230-1.259 -41 -43 -41
1.260-1.289 -42 -44 -42
1.290-1.319 -43 -45 43
1.320-1.349 -44 -46 -44
1.350-1.379 -45 -47 -45
1.380-1.409 -46 -48 -46
1.410-1.439 -47 -49 -47
1.440-1.469 -48 -50 -48
1.470-1.499 -49 -51 -49
1.500-1.529 -50 -52 -50

 

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